ANALYTICAL REPORT. Job Number: SDG Number: Job Description: Joint Base Cape Cod

ANALYTICAL REPORT Job Number: 200-33700-1 SDG Number: 33700 Job Description: Joint Base Cape Cod For: Dawson Technical, LLC 900 Fort Street Mall Suite 1700 Honolulu, HI 96813 Attention: Troy Hile James W Madison, Senior Project Manager 30 Community Drive, South Burlington, VT, 05403 (802)660-1990 jim.madison@testamericainc.com 06/22/2016 Approved for release. James W Madison Senior Project Manager 6/22/2016 1:19 PM The test results in this report relate only to sample(s) as received by the laboratory. These test results were derived under a quality system that adheres to the requirements of NELAC. Pursuant to NELAC, this report may not be produced in full without written approval from the laboratory TestAmerica Laboratories, Inc. TestAmerica Burlington 30 Community Drive, Suite 11, South Burlington, VT 05403 Tel (802) 660-1990 Fax (802) 660-1919 www.testamericainc.com Page 1 of 258

CASE NARRATIVE Client: Dawson Technical, LLC Project: Joint Base Cape Cod Report Number: 200-33700-1 With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples, the reporting limits are adjusted relative to the dilution required. Calculations are performed before rounding to avoid round-off errors in calculated results. All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the individual sections below. RECEIPT The samples were received on 05/26/2016; the samples arrived in good condition, properly preserved and on ice. The temperature of the coolers at receipt was C. VOLATILE ORGANIC COMPOUNDS (GC-MS) Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for volatile organic compounds (GC-MS) in accordance with EPA SW-846 Method 8260B. The samples were prepared on 05/25/2016 and analyzed on 06/07/2016. Several compounds were outside control limits in the continuing calibration verification (CCV) standards. These compounds are not classified as Calibration Check Compounds (CCCs) in the reference method. The responses were elevated, and the compounds were not detected in the associated samples. The analyses of samples J2_WC_052516_03, J2_WC_052516_06 and J2_WC_052516_07 yielded elevated recoveries for surrogates toluene-d8 and/or 4-bromofluorobenzene. These samples did not contain any target analytes; therefore, re-analysis was not performed. The data has been qualified and reported. The original analysis of sample J2_WC_052516_04 yielded low surrogate recoveries. The sample was reanalyzed with concurring results. Both sets of data have been reported in this case submittal. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. SEMIVOLATILE ORGANIC COMPOUNDS (GC-MS) Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for semivolatile organic compounds (GC-MS) in accordance with EPA SW-846 Method 8270C. The samples were prepared on 06/01/2016 and analyzed on 06/09/2016 and 06/10/2016. A matrix spike performed on sample J2_WC_052516_01 yielded low recovery of 3,3'-dichlorobenzidine. The matrix spike duplicate yielded low recovery of 3,3'-dichlorobenzidine and 4-chloroaniline. 4-Chloroaniline and Aniline exceeded the RPD limit. The blank spike sample was acceptable. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. GASOLINE RANGE ORGANICS (GRO) Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for gasoline range organics (GRO) in accordance with EPA SW-846 Method 8015B - GRO. The samples were analyzed on 06/06/2016 and 06/07/2016. Samples J2-WC-052516-01 and J2-WC-052516-05 were field preserved with methanol by method 5035, however the samples absorbed all of the available methanol. These samples were then lab preserved by method 5030. The analyses of samples J2_WC_052516_02, J2_WC_052516_07 and J2_WC_052516_09 yielded elevated surrogate recoveries. Re-analyses were performed with concurring results. The original analyses have been reported. The analysis of sample J2_WC_052516_01 yielded marginally low surrogate recovery. The sample had a high % moisture content of which diluted the MeOH added in the preparation; therefore, re-extraction was not performed. Page 2 of 258

Matrix spikes performed on sample J2_WC_052516_05 yielded low recovery of Gasoline Range Organics (GRO)-C6-C10. The blank spike sample was acceptable. The Gasoline Range Organics (GRO) concentration reported for samples J2_WC_052516_03, J2_WC_052516_05, J2_WC_052516_06 and J2_WC_052516_07 is due to the presence of discrete peaks rather than a GRO pattern. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. DIESEL RANGE ORGANICS Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for diesel range organics in accordance with 8015B_DRO. The samples were prepared on 06/06/2016 and analyzed on 06/08/2016. Diesel Range Organics [C10-C28] was detected in method blank MB 280-328561/1-A at a level that was above the method detection limit but below the reporting limit. The value should be considered an estimate, and has been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. The analyses of samples J2_WC_052516_03, J2_WC_052516_05, J2_WC_052516_07 and J2_WC_052516_09 yielded elevated recovery of surrogate n-octacosane and acceptable recovery of o-terphenyl. Evidence of matrix interference is present; therefore, re-extraction and/or re-analysis was not performed. A matrix spike duplicate performed on sample J2_WC_052516_07 yielded slightly elevated recovery of Diesel Range Organics [C10-C28]. The matrix spike and blank spike sample were acceptable. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PESTICIDES Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for Pesticides in accordance with 8081B. The samples were prepared on 06/06/2016 and analyzed on 06/09/2016, 06/10/2016 and 06/11/2016. delta-bhc was detected in method blank MB 280-328536/1-A at a level that was above the method detection limit but below the reporting limit. The value should be considered an estimate, and has been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. The analyses of the samples in this delivery group yielded the presence of numerous non-target peaks and significant baseline rises that could be interfering with the identification and quantitation of target analytes. This inference could cause false positive and/or negative results. The original analyses of the samples in this delivery group were follwed with a calibration Verification standard that was outside control criteria for 4,4-DDD, 4,4-DDT and Methoxychlor due to suspected matrix affect from the samples. The laboratory re-analyzed these samples at dilutions to minimize the matrix effect, resulting in a acceptable calibration verification standard. 4,4-DDD, 4,4-DDT and Methoxychlor are reported from the dilution analyses. Surrogate recoveries were impacted in the dilution analyses. Sample J2_WC_052516_02 was only analyzed at dilution due to the presence of numerous non-target peaks and significant baseline rise that could be interfering with the identification and quantitation of target analytes. This inference could cause false positive and/or negative results, and was mitigated with dilution. Surrogate spikes were diluted below calibration level in that analysis. Several samples yielded low recovery of one of the two surrogates and acceptable recovery of the other surrogate. Sample J2_WC_052516_05 yielded marginally low recovery of both surrogates. Note that there is an in house variance that allows for the recovery limits to be 55-125% for tetrachloro-m-xylene. A matrix spike duplicate performed on sample J2_WC_052516_03 yielded low recovery for several compounds, and several analytes exceeded the RPD limit. The blank spike sample was acceptable. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PCB AROCLORS Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for PCB Aroclors in accordance with 8082A. The samples were prepared on 06/06/2016 and analyzed on 06/08/2016. A matrix spike duplicate performed on sample J2_WC_052516_04 yielded elevated recovery of aroclor 1260. The blank spike sample was acceptable. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. ORGANOCHLORINE HERBICIDES Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, Page 3 of 258

J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for organochlorine herbicides in accordance with EPA SW-846 Method 8151A. The samples were prepared on 06/07/2016 and 06/08/2016 and analyzed on 06/12/2016 and 06/14/2016. Matrix spikes performed on sample J2_WC_052516_06 yielded low recoveries for several compounds. The blank spike samples were acceptable with the exception of marginally low recovery of dichlorprop. The TestAmerica Denver DoD QSM Variance requests include a widening of %R for Dichlorprop in soils from 75-140%R (DoD) to 37-115%R. Dichlorprop has been identified as a poor performing analyte when analyzed using this method and the LCS recovered within the widened windows; therefore, re-extraction/re-analysis was not performed. These results have been reported and qualified. The orginal analysis of samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 clogged the syringe on the instrument. These samples were re-analyzed at dilutions yielding acceptable results. The reporting limits have been adjusted accordingly. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. EXPLOSIVES Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for explosives in accordance with EPA SW-846 Method 8B. The samples were prepared on 06/07/2016 and analyzed on 06/15/2016. Matrix spikes performed on sample J2_WC_052516_04 yielded low recoveries for 2,4-diamino-6-nitrotoluene, 2,6-diamino-4-nitrotoluene, PETN and Picric acid. The blank spike sample exhibited acceptable recoveries for all compounds. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PERCHLORATE Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for perchlorate in accordance with EPA SW-846 6850. The samples were leached on 06/08/2016 and analyzed on 06/10/2016. The perchlorate analyses of the samples in this delivery gruop were prepared using pre-dried sample. The analytical results are inherently on a dry weight basis. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. METALS (ICP) Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for Metals (ICP) in accordance with 6010C. The samples were prepared on 06/01/2016 and analyzed on 06/02/2016 and 06/03/2016. Barium and Chromium were detected in method blank MB 280-327633/1-A at levels that were above the method detection limit but below the reporting limit. The values should be considered estimates, and have been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. MERCURY Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for mercury in accordance with 7471B. The samples were prepared and analyzed on 05/31/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. IGNITABILITY FOR SOLIDS Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for ignitability for solids in accordance with EPA SW-846 Method 1030. The samples were analyzed on 06/13/2016. The samples in this delivery gruop did not ignite; therefore, an ignitability value could not be obtained. The results have been reported as "No Burn" (NB). No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. SPECIFIC CONDUCTIVITY Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for specific conductivity in accordance with SM20 2510B. The samples were leached on 06/17/2016 and analyzed on 06/17/2016. Page 4 of 258

No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. CYANIDE Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for cyanide in accordance with 9012B. The samples were prepared and analyzed on 06/07/2016 and 06/08/2016. Matrix spikes performed on sample J2_WC_052516_01 yielded low recovery of cyanide, and an elevated RPD value in the interanalysis comparison. The blank spike sample was acceptable. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. TOTAL SULFIDE Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for total sulfide in accordance with EPA SW-846 Method 9034. The samples were prepared and analyzed on 06/01/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PH (CORROSIVITY) Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for ph (corrosivity) in accordance with EPA SW-846 Method 9045D. The samples were leached on 05/31/2016 and analyzed on 05/31/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PERCENT SOLIDS Samples J2_WC_052516_01, J2_WC_052516_02, J2_WC_052516_03, J2_WC_052516_04, J2_WC_052516_05, J2_WC_052516_06, J2_WC_052516_07, J2_WC_052516_08 and J2_WC_052516_09 were analyzed for percent solids in accordance with EPA Moisture. The samples were analyzed on 05/28/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Page 5 of 258

METHOD SUMMARY Client: Dawson Technical, LLC Job Number: 200-33700-1 Description Matrix: Solid Lab Location Method Preparation Method Nitroaromatics and Nitramines (HPLC) TAL BUR SW846 8B Soil Extraction Procedure TAL BUR SW846 8 Perchlorate by LC/MS or LC/MS/MS TAL BUR EPA 6850 Deionized Water Leaching Procedure TAL BUR ASTM DI Leach Volatile Organic Compounds (GC/MS) TAL DEN SW846 8260B Closed System Purge and Trap TAL DEN SW846 5035 Semivolatile Organic Compounds (GC/MS) TAL DEN SW846 8270C Ultrasonic Extraction TAL DEN SW846 3550C Gasoline Range Organics - (GC) TAL DEN SW846 8015B GRO DOD Closed System Purge and Trap TAL DEN SW846 5035 Gasoline Range Organics (GRO) TAL DEN SW846 8015B_GRO Purge and Trap TAL DEN SW846 5030B Diesel Range Organics (DRO) (GC) TAL DEN SW846 8015B DRO Microwave Extraction TAL DEN SW846 3546 Organochlorine Pesticides (GC) TAL DEN SW846 8081B Microwave Extraction TAL DEN SW846 3546 Polychlorinated Biphenyls (PCBs) by Gas Chromatography TAL DEN SW846 8082A Microwave Extraction TAL DEN SW846 3546 Herbicides (GC) TAL DEN SW846 8151A Extraction (Herbicides) TAL DEN SW846 8151A Metals (ICP) TAL DEN SW846 6010C Preparation, Metals TAL DEN SW846 3050B Mercury (CVAA) TAL DEN SW846 7471B Preparation, Mercury TAL DEN SW846 7471B Cyanide, Total and/or Amenable TAL DEN SW846 9012B Cyanide, Total and/or Amenable, Distillation TAL DEN SW846 9012B Sulfide, Acid Soluble and Insoluble (Titrimetric) TAL DEN SW846 9034 Sulfide, Distillation (Acid Soluble and Insoluble) TAL DEN SW846 9030B ph TAL DEN SW846 9045D Deionized Water Leaching Procedure TAL DEN ASTM DI Leach Percent Moisture TAL DEN EPA Moisture Conductivity, Specific Conductance TAL DEN SM SM 2510B Deionized Water Leaching Procedure TAL DEN ASTM DI Leach Ignitability, Solids TAL SAV SW846 1030 Lab References: TAL BUR = TestAmerica Burlington TAL DEN = TestAmerica Denver TAL SAV = TestAmerica Savannah TestAmerica Burlington Page 6 of 258

METHOD SUMMARY Client: Dawson Technical, LLC Job Number: 200-33700-1 Description Method References: Lab Location Method Preparation Method ASTM = ASTM International EPA = US Environmental Protection Agency SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. TestAmerica Burlington Page 7 of 258

METHOD / ANALYST SUMMARY Client: Dawson Technical, LLC Job Number: 200-33700-1 Method Analyst Analyst ID SW846 8260B SW846 8270C SW846 8015B GRO DOD SW846 8015B_GRO SW846 8015B DRO SW846 8081B SW846 8082A SW846 8151A SW846 6010C SW846 7471B EPA 6850 SW846 1030 SW846 9012B SW846 9034 SW846 9045D EPA Moisture SM SM 2510B SW846 8B Dukes, Aaron D Kiekel, Daniel C Redman, Erin E Redman, Erin E Moore, Tegan E Wells, David A Jackson, Todd D Wells, David A Kelly, Cara M Henning, Christopher D Drumm, Erik L Wynn, Jamall J Lehman, Jeffrey M Lawrence, Caitlyn M Uge, Ikem E Martinez, Rut S Martinez, Rut S Chirgwin, Bradley W ADD DCK EER EER TEM DAW TDJ DAW CMK CDH ELD JJW JML CML IEU RSM RSM BWC TestAmerica Burlington Page 8 of 258

SAMPLE SUMMARY Client: Dawson Technical, LLC Job Number: 200-33700-1 Date/Time Date/Time Lab Sample ID Client Sample ID Client Matrix Sampled Received 200-33700-1 J2_WC_052516_01 Solid 05/25/2016 1005 05/26/2016 1215 200-33700-2 J2_WC_052516_02 Solid 05/25/2016 1025 05/26/2016 1215 200-33700-3 J2_WC_052516_03 Solid 05/25/2016 1045 05/26/2016 1215 200-33700-4 J2_WC_052516_04 Solid 05/25/2016 1100 05/26/2016 1215 200-33700-5 J2_WC_052516_05 Solid 05/25/2016 1115 05/26/2016 1215 200-33700-6 J2_WC_052516_06 Solid 05/25/2016 1126 05/26/2016 1215 200-33700-7 J2_WC_052516_07 Solid 05/25/2016 1140 05/26/2016 1215 200-33700-8 J2_WC_052516_08 Solid 05/25/2016 1155 05/26/2016 1215 200-33700-9 J2_WC_052516_09 Solid 05/25/2016 1210 05/26/2016 1215 TestAmerica Burlington Page 9 of 258

SAMPLE RESULTS TestAmerica Burlington Page 10 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: 200-33700-1 % Moisture: 28.8 Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 0430 05/25/2016 1005 Analysis Batch: 280-328628 280-328627 VMS_J J2696.D 1.995 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 18 U 1.8 18 1,1-Dichloroethane 18 U 0.74 18 1,2,4-Trichlorobenzene 18 U 2.6 18 1,2-Dibromo-3-Chloropropane 35 U 2.1 35 1,1-Dichloroethene 18 U 2.1 18 1,1,2-Trichloroethane 18 U 3.1 18 1,1,2,2-Tetrachloroethane 18 U 2.1 18 1,2-Dichlorobenzene 18 U 1.6 18 1,2-Dichloroethane 18 U 2.5 18 1,3-Dichlorobenzene 18 U 1.7 18 2-Butanone 70 U 6.4 70 1,4-Dichlorobenzene 18 U 2.7 18 1,2-Dichloropropane 18 U 1.9 18 2-Hexanone 70 U 17 70 4-Methyl-2-pentanone 70 U 15 70 Benzene 18 U 1.7 18 Acetone 470 19 70 Bromoform 18 U 0.81 18 Bromomethane 35 U 1.8 35 Carbon tetrachloride 18 U 2.2 18 Carbon disulfide 18 U 1.5 18 Chlorobenzene 18 U 1.9 18 Bromochloromethane 18 U 1.1 18 Dibromochloromethane 18 U 2.0 18 Chloroform 35 U 35 Chloroethane 35 U 3.1 35 Chloromethane 35 U 2.7 35 cis-1,2-dichloroethene 18 U 2.0 18 cis-1,3-dichloropropene 18 U 4.5 18 Dibromomethane 18 U 3.0 18 Bromodichloromethane 18 U 0.77 18 Ethylbenzene 18 U 2.4 18 1,2-Dibromoethane 18 U 1.8 18 Methylene Chloride 18 U 5.6 18 Methyl t-butyl ether 70 U 1.2 70 m&p-xylene 11 U 3.7 11 o-xylene 18 U 2.1 18 Styrene 18 U 2.2 18 trans-1,2-dichloroethene 18 U 1.4 18 trans-1,3-dichloropropene 18 U 2.4 18 Tetrachloroethene 18 U 2.1 18 Toluene 18 U 2.4 18 Trichloroethene 18 U 0.81 18 Vinyl chloride 18 U 4.7 18 Xylenes, Total 35 U 2.1 35 Vinyl acetate 35 U 3.8 35 TestAmerica Burlington Page 11 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: 200-33700-2 % Moisture: 30.8 Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 0450 05/25/2016 1025 Analysis Batch: 280-328628 280-328627 VMS_J J2697.D 5.224 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 6.9 U 0.72 6.9 1,1-Dichloroethane 6.9 U 0.29 6.9 1,2,4-Trichlorobenzene 6.9 U 6.9 1,2-Dibromo-3-Chloropropane 14 U 0.83 14 1,1-Dichloroethene 6.9 U 0.82 6.9 1,1,2-Trichloroethane 6.9 U 1.2 6.9 1,1,2,2-Tetrachloroethane 6.9 U 0.84 6.9 1,2-Dichlorobenzene 6.9 U 0.62 6.9 1,2-Dichloroethane 6.9 U 0.97 6.9 1,3-Dichlorobenzene 6.9 U 0.66 6.9 2-Butanone 14 J 2.5 28 1,4-Dichlorobenzene 6.9 U 1.1 6.9 1,2-Dichloropropane 6.9 U 0.76 6.9 2-Hexanone 28 U 6.8 28 4-Methyl-2-pentanone 28 U 6.0 28 Benzene 6.9 U 0.65 6.9 Acetone 300 7.4 28 Bromoform 6.9 U 0.32 6.9 Bromomethane 14 U 0.69 14 Carbon tetrachloride 6.9 U 0.87 6.9 Carbon disulfide 6.9 U 0.58 6.9 Chlorobenzene 6.9 U 0.75 6.9 Bromochloromethane 6.9 U 0.42 6.9 Dibromochloromethane 6.9 U 0.79 6.9 Chloroform 14 U 0.40 14 Chloroethane 14 U 1.2 14 Chloromethane 14 U 1.1 14 cis-1,2-dichloroethene 6.9 U 0.77 6.9 cis-1,3-dichloropropene 6.9 U 1.8 6.9 Dibromomethane 6.9 U 1.2 6.9 Bromodichloromethane 6.9 U 0.30 6.9 Ethylbenzene 6.9 U 0.93 6.9 1,2-Dibromoethane 6.9 U 0.72 6.9 Methylene Chloride 6.9 U 2.2 6.9 Methyl t-butyl ether 28 U 0.47 28 m&p-xylene 4.4 U 1.4 4.4 o-xylene 6.9 U 0.84 6.9 Styrene 6.9 U 0.87 6.9 trans-1,2-dichloroethene 6.9 U 0.54 6.9 trans-1,3-dichloropropene 6.9 U 0.93 6.9 Tetrachloroethene 6.9 U 0.82 6.9 Toluene 6.9 U 0.95 6.9 Trichloroethene 6.9 U 0.32 6.9 Vinyl chloride 6.9 U 1.9 6.9 Xylenes, Total 14 U 0.84 14 Vinyl acetate 14 U 1.5 14 TestAmerica Burlington Page 14 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: 200-33700-3 % Moisture: 10.8 Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 1955 05/25/2016 1045 Analysis Batch: 280-328785 280-328795 VMS_J J2718.D 5.183 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 5.4 U 0.56 5.4 1,1-Dichloroethane 5.4 U 0.23 5.4 1,2,4-Trichlorobenzene 5.4 U 0.79 5.4 1,2-Dibromo-3-Chloropropane 11 U 0.65 11 1,1-Dichloroethene 5.4 U 0.64 5.4 1,1,2-Trichloroethane 5.4 U 0.95 5.4 1,1,2,2-Tetrachloroethane 5.4 U 0.66 5.4 1,2-Dichlorobenzene 5.4 U 0.49 5.4 1,2-Dichloroethane 5.4 U 0.76 5.4 1,3-Dichlorobenzene 5.4 U 0.52 5.4 2-Butanone 22 U 2.0 22 1,4-Dichlorobenzene 5.4 U 0.84 5.4 1,2-Dichloropropane 5.4 U 0.59 5.4 2-Hexanone 22 U 5.3 22 4-Methyl-2-pentanone 22 U 4.7 22 Benzene 5.4 U 0.51 5.4 Acetone 180 5.8 22 Bromoform 5.4 U 0.25 5.4 Bromomethane 11 U 0.54 11 Carbon tetrachloride 5.4 U 0.68 5.4 Carbon disulfide 5.4 U 0.45 5.4 Chlorobenzene 5.4 U 0.58 5.4 Bromochloromethane 5.4 U 0.32 5.4 Dibromochloromethane 5.4 U 0.62 5.4 Chloroform 11 U 0.31 11 Chloroethane 11 U 0.96 11 Chloromethane 11 U 0.83 11 cis-1,2-dichloroethene 5.4 U 0.61 5.4 cis-1,3-dichloropropene 5.4 U 1.4 5.4 Dibromomethane 5.4 U 0.91 5.4 Bromodichloromethane 5.4 U 0.24 5.4 Ethylbenzene 5.4 U 0.72 5.4 1,2-Dibromoethane 5.4 U 0.56 5.4 Methylene Chloride 5.4 U 1.7 5.4 Methyl t-butyl ether 22 U 0.37 22 m&p-xylene 3.5 U 1.1 3.5 o-xylene 5.4 U 0.66 5.4 Styrene 5.4 U 0.68 5.4 trans-1,2-dichloroethene 5.4 U 0.42 5.4 trans-1,3-dichloropropene 5.4 U 0.72 5.4 Tetrachloroethene 5.4 U 0.64 5.4 Toluene 5.4 U 0.75 5.4 Trichloroethene 5.4 U 0.25 5.4 Vinyl chloride 5.4 U 1.4 5.4 Xylenes, Total 11 U 0.66 11 Vinyl acetate 11 U 1.2 11 TestAmerica Burlington Page 17 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: 200-33700-4 % Moisture: 3.4 Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 0531 05/25/2016 1100 Analysis Batch: 280-328628 280-328627 VMS_J J2699.D 5.198 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 5.0 U 0.52 5.0 1,1-Dichloroethane 5.0 U 0.21 5.0 1,2,4-Trichlorobenzene 5.0 U 0.73 5.0 1,2-Dibromo-3-Chloropropane 10 U 0.60 10 1,1-Dichloroethene 5.0 U 0.59 5.0 1,1,2-Trichloroethane 5.0 U 0.88 5.0 1,1,2,2-Tetrachloroethane 5.0 U 0.61 5.0 1,2-Dichlorobenzene 5.0 U 0.45 5.0 1,2-Dichloroethane 5.0 U 0.70 5.0 1,3-Dichlorobenzene 5.0 U 0.48 5.0 2-Butanone 5.3 J 1.8 20 1,4-Dichlorobenzene 5.0 U 0.78 5.0 1,2-Dichloropropane 5.0 U 0.55 5.0 2-Hexanone 20 U 4.9 20 4-Methyl-2-pentanone 20 U 4.3 20 Benzene 5.0 U 0.47 5.0 Acetone 79 5.4 20 Bromoform 5.0 U 0.23 5.0 Bromomethane 10 U 0.50 10 Carbon tetrachloride 5.0 U 0.63 5.0 Carbon disulfide 5.0 U 0.42 5.0 Chlorobenzene 5.0 U 0.54 5.0 Bromochloromethane 5.0 U 0.30 5.0 Dibromochloromethane 5.0 U 0.57 5.0 Chloroform 10 U 0.29 10 Chloroethane 10 U 0.89 10 Chloromethane 10 U 0.77 10 cis-1,2-dichloroethene 5.0 U 0.56 5.0 cis-1,3-dichloropropene 5.0 U 1.3 5.0 Dibromomethane 5.0 U 0.84 5.0 Bromodichloromethane 5.0 U 0.22 5.0 Ethylbenzene 5.0 U 0.67 5.0 1,2-Dibromoethane 5.0 U 0.52 5.0 Methylene Chloride 5.0 U 1.6 5.0 Methyl t-butyl ether 20 U 0.34 20 m&p-xylene 3.2 U 3.2 o-xylene 5.0 U 0.61 5.0 Styrene 5.0 U 0.63 5.0 trans-1,2-dichloroethene 5.0 U 0.39 5.0 trans-1,3-dichloropropene 5.0 U 0.67 5.0 Tetrachloroethene 5.0 U 0.59 5.0 Toluene 5.0 U 0.69 5.0 Trichloroethene 5.0 U 0.23 5.0 Vinyl chloride 5.0 U 1.3 5.0 Xylenes, Total 10 U 0.61 10 Vinyl acetate 10 U 1.1 10 TestAmerica Burlington Page 20 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: 200-33700-4 % Moisture: 3.4 Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 2015 05/25/2016 1100 Analysis Batch: 280-328785 280-328795 VMS_J J2719.D 5.93 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 4.4 U 0.45 4.4 1,1-Dichloroethane 4.4 U 0.18 4.4 1,2,4-Trichlorobenzene 4.4 U 0.64 4.4 1,2-Dibromo-3-Chloropropane 8.7 U 0.52 8.7 1,1-Dichloroethene 4.4 U 0.52 4.4 1,1,2-Trichloroethane 4.4 U 0.77 4.4 1,1,2,2-Tetrachloroethane 4.4 U 0.53 4.4 1,2-Dichlorobenzene 4.4 U 0.39 4.4 1,2-Dichloroethane 4.4 U 0.61 4.4 1,3-Dichlorobenzene 4.4 U 0.42 4.4 2-Butanone 17 U 1.6 17 1,4-Dichlorobenzene 4.4 U 0.68 4.4 1,2-Dichloropropane 4.4 U 0.48 4.4 2-Hexanone 17 U 4.3 17 4-Methyl-2-pentanone 17 U 3.8 17 Benzene 4.4 U 0.41 4.4 Acetone 39 4.7 17 Bromoform 4.4 U 0.20 4.4 Bromomethane 8.7 U 0.44 8.7 Carbon tetrachloride 4.4 U 0.55 4.4 Carbon disulfide 4.4 U 0.37 4.4 Chlorobenzene 4.4 U 0.47 4.4 Bromochloromethane 4.4 U 0.26 4.4 Dibromochloromethane 4.4 U 0.50 4.4 Chloroform 8.7 U 0.25 8.7 Chloroethane 8.7 U 0.78 8.7 Chloromethane 8.7 U 0.67 8.7 cis-1,2-dichloroethene 4.4 U 0.49 4.4 cis-1,3-dichloropropene 4.4 U 1.1 4.4 Dibromomethane 4.4 U 0.73 4.4 Bromodichloromethane 4.4 U 0.19 4.4 Ethylbenzene 4.4 U 0.59 4.4 1,2-Dibromoethane 4.4 U 0.45 4.4 Methylene Chloride 4.4 U 1.4 4.4 Methyl t-butyl ether 17 U 0.30 17 m&p-xylene 2.8 U 0.91 2.8 o-xylene 4.4 U 0.53 4.4 Styrene 4.4 U 0.55 4.4 trans-1,2-dichloroethene 4.4 U 0.34 4.4 trans-1,3-dichloropropene 4.4 U 0.59 4.4 Tetrachloroethene 4.4 U 0.52 4.4 Toluene 4.4 U 0.60 4.4 Trichloroethene 4.4 U 0.20 4.4 Vinyl chloride 4.4 U 1.2 4.4 Xylenes, Total 8.7 U 0.53 8.7 Vinyl acetate 8.7 U 0.93 8.7 TestAmerica Burlington Page 22 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: 200-33700-5 % Moisture: 4.9 Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 0550 05/25/2016 1118 Analysis Batch: 280-328628 280-328627 VMS_J J2700.D 4.932 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 5.3 U 0.55 5.3 1,1-Dichloroethane 5.3 U 0.22 5.3 1,2,4-Trichlorobenzene 5.3 U 0.78 5.3 1,2-Dibromo-3-Chloropropane 11 U 0.64 11 1,1-Dichloroethene 5.3 U 0.63 5.3 1,1,2-Trichloroethane 5.3 U 0.94 5.3 1,1,2,2-Tetrachloroethane 5.3 U 0.65 5.3 1,2-Dichlorobenzene 5.3 U 0.48 5.3 1,2-Dichloroethane 5.3 U 0.75 5.3 1,3-Dichlorobenzene 5.3 U 0.51 5.3 2-Butanone 13 J 2.0 21 1,4-Dichlorobenzene 5.3 U 0.83 5.3 1,2-Dichloropropane 5.3 U 0.59 5.3 2-Hexanone 21 U 5.2 21 4-Methyl-2-pentanone 21 U 4.6 21 Benzene 5.3 U 0.50 5.3 Acetone 280 5.7 21 Bromoform 5.3 U 0.25 5.3 Bromomethane 11 U 0.53 11 Carbon tetrachloride 5.3 U 0.67 5.3 Carbon disulfide 5.3 U 0.45 5.3 Chlorobenzene 5.3 U 0.58 5.3 Bromochloromethane 5.3 U 0.32 5.3 Dibromochloromethane 5.3 U 0.61 5.3 Chloroform 0.38 J 0.31 11 Chloroethane 11 U 0.95 11 Chloromethane 11 U 0.82 11 cis-1,2-dichloroethene 5.3 U 0.60 5.3 cis-1,3-dichloropropene 5.3 U 1.4 5.3 Dibromomethane 5.3 U 0.90 5.3 Bromodichloromethane 5.3 U 0.23 5.3 Ethylbenzene 5.3 U 0.71 5.3 1,2-Dibromoethane 5.3 U 0.55 5.3 Methylene Chloride 5.3 U 1.7 5.3 Methyl t-butyl ether 21 U 0.36 21 m&p-xylene 3.4 U 1.1 3.4 o-xylene 5.3 U 0.65 5.3 Styrene 5.3 U 0.67 5.3 trans-1,2-dichloroethene 5.3 U 0.42 5.3 trans-1,3-dichloropropene 5.3 U 0.71 5.3 Tetrachloroethene 5.3 U 0.63 5.3 Toluene 5.3 U 0.74 5.3 Trichloroethene 5.3 U 0.25 5.3 Vinyl chloride 5.3 U 1.4 5.3 Xylenes, Total 11 U 0.65 11 Vinyl acetate 11 U 1.1 11 TestAmerica Burlington Page 25 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: 200-33700-6 % Moisture: 15.6 Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 0610 05/25/2016 1126 Analysis Batch: 280-328628 280-328627 VMS_J J2701.D 6.163 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 4.8 U 0.50 4.8 1,1-Dichloroethane 4.8 U 0.20 4.8 1,2,4-Trichlorobenzene 4.8 U 0.70 4.8 1,2-Dibromo-3-Chloropropane 9.6 U 0.58 9.6 1,1-Dichloroethene 4.8 U 0.57 4.8 1,1,2-Trichloroethane 4.8 U 0.85 4.8 1,1,2,2-Tetrachloroethane 4.8 U 0.59 4.8 1,2-Dichlorobenzene 4.8 U 0.43 4.8 1,2-Dichloroethane 4.8 U 0.67 4.8 1,3-Dichlorobenzene 4.8 U 0.46 4.8 2-Butanone 19 U 1.8 19 1,4-Dichlorobenzene 4.8 U 0.75 4.8 1,2-Dichloropropane 4.8 U 0.53 4.8 2-Hexanone 19 U 4.7 19 4-Methyl-2-pentanone 19 U 4.2 19 Benzene 4.8 U 0.45 4.8 Acetone 170 5.2 19 Bromoform 4.8 U 0.22 4.8 Bromomethane 9.6 U 0.48 9.6 Carbon tetrachloride 4.8 U 0.61 4.8 Carbon disulfide 4.8 U 0.40 4.8 Chlorobenzene 4.8 U 0.52 4.8 Bromochloromethane 4.8 U 0.29 4.8 Dibromochloromethane 4.8 U 0.55 4.8 Chloroform 0.83 J 0.28 9.6 Chloroethane 9.6 U 0.86 9.6 Chloromethane 9.6 U 0.74 9.6 cis-1,2-dichloroethene 4.8 U 0.54 4.8 cis-1,3-dichloropropene 4.8 U 1.2 4.8 Dibromomethane 4.8 U 0.81 4.8 Bromodichloromethane 4.8 U 0.21 4.8 Ethylbenzene 4.8 U 0.64 4.8 1,2-Dibromoethane 4.8 U 0.50 4.8 Methylene Chloride 4.8 U 1.5 4.8 Methyl t-butyl ether 19 U 0.33 19 m&p-xylene 3.1 U 3.1 o-xylene 4.8 U 0.59 4.8 Styrene 4.8 U 0.61 4.8 trans-1,2-dichloroethene 4.8 U 0.37 4.8 trans-1,3-dichloropropene 4.8 U 0.64 4.8 Tetrachloroethene 4.8 U 0.57 4.8 Toluene 4.8 U 0.66 4.8 Trichloroethene 4.8 U 0.22 4.8 Vinyl chloride 4.8 U 1.3 4.8 Xylenes, Total 9.6 U 0.59 9.6 Vinyl acetate 9.6 U 9.6 TestAmerica Burlington Page 28 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: 200-33700-7 % Moisture: 13.6 Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 0630 05/25/2016 1140 Analysis Batch: 280-328628 280-328627 VMS_J J2702.D 5.665 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 5.1 U 0.53 5.1 1,1-Dichloroethane 5.1 U 0.21 5.1 1,2,4-Trichlorobenzene 5.1 U 0.75 5.1 1,2-Dibromo-3-Chloropropane 10 U 0.61 10 1,1-Dichloroethene 5.1 U 0.60 5.1 1,1,2-Trichloroethane 5.1 U 0.90 5.1 1,1,2,2-Tetrachloroethane 5.1 U 0.62 5.1 1,2-Dichlorobenzene 5.1 U 0.46 5.1 1,2-Dichloroethane 5.1 U 0.72 5.1 1,3-Dichlorobenzene 5.1 U 0.49 5.1 2-Butanone 18 J 1.9 20 1,4-Dichlorobenzene 5.1 U 0.80 5.1 1,2-Dichloropropane 5.1 U 0.56 5.1 2-Hexanone 20 U 5.0 20 4-Methyl-2-pentanone 20 U 4.5 20 Benzene 5.1 U 0.48 5.1 Acetone 370 5.5 20 Bromoform 5.1 U 0.24 5.1 Bromomethane 10 U 0.51 10 Carbon tetrachloride 5.1 U 0.64 5.1 Carbon disulfide 5.1 U 0.43 5.1 Chlorobenzene 5.1 U 0.55 5.1 Bromochloromethane 5.1 U 0.31 5.1 Dibromochloromethane 5.1 U 0.58 5.1 Chloroform 0.39 J 0.30 10 Chloroethane 10 U 0.91 10 Chloromethane 10 U 0.79 10 cis-1,2-dichloroethene 5.1 U 0.57 5.1 cis-1,3-dichloropropene 5.1 U 1.3 5.1 Dibromomethane 5.1 U 0.86 5.1 Bromodichloromethane 5.1 U 0.22 5.1 Ethylbenzene 5.1 U 0.68 5.1 1,2-Dibromoethane 5.1 U 0.53 5.1 Methylene Chloride 5.1 U 1.6 5.1 Methyl t-butyl ether 20 U 0.35 20 m&p-xylene 3.3 U 1.1 3.3 o-xylene 5.1 U 0.62 5.1 Styrene 5.1 U 0.64 5.1 trans-1,2-dichloroethene 5.1 U 0.40 5.1 trans-1,3-dichloropropene 5.1 U 0.68 5.1 Tetrachloroethene 5.1 U 0.60 5.1 Toluene 5.1 U 0.71 5.1 Trichloroethene 5.1 U 0.24 5.1 Vinyl chloride 5.1 U 1.4 5.1 Xylenes, Total 10 U 0.62 10 Vinyl acetate 10 U 1.1 10 TestAmerica Burlington Page 31 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: 200-33700-8 % Moisture: 21.1 Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 2036 05/25/2016 1155 Analysis Batch: 280-328785 280-328795 VMS_J J2720.D 4.997 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 6.3 U 0.66 6.3 1,1-Dichloroethane 6.3 U 0.27 6.3 1,2,4-Trichlorobenzene 6.3 U 0.93 6.3 1,2-Dibromo-3-Chloropropane 13 U 0.76 13 1,1-Dichloroethene 6.3 U 0.75 6.3 1,1,2-Trichloroethane 6.3 U 1.1 6.3 1,1,2,2-Tetrachloroethane 6.3 U 0.77 6.3 1,2-Dichlorobenzene 6.3 U 0.57 6.3 1,2-Dichloroethane 6.3 U 0.89 6.3 1,3-Dichlorobenzene 6.3 U 0.61 6.3 2-Butanone 25 U 2.3 25 1,4-Dichlorobenzene 6.3 U 0.99 6.3 1,2-Dichloropropane 6.3 U 0.70 6.3 2-Hexanone 25 U 6.2 25 4-Methyl-2-pentanone 25 U 5.5 25 Benzene 6.3 U 0.60 6.3 Acetone 180 6.8 25 Bromoform 6.3 U 0.29 6.3 Bromomethane 13 U 0.63 13 Carbon tetrachloride 6.3 U 0.80 6.3 Carbon disulfide 6.3 U 0.53 6.3 Chlorobenzene 6.3 U 0.68 6.3 Bromochloromethane 6.3 U 0.38 6.3 Dibromochloromethane 6.3 U 0.72 6.3 Chloroform 13 U 0.37 13 Chloroethane 13 U 1.1 13 Chloromethane 13 U 0.98 13 cis-1,2-dichloroethene 6.3 U 0.71 6.3 cis-1,3-dichloropropene 6.3 U 1.6 6.3 Dibromomethane 6.3 U 1.1 6.3 Bromodichloromethane 6.3 U 0.28 6.3 Ethylbenzene 6.3 U 0.85 6.3 1,2-Dibromoethane 6.3 U 0.66 6.3 Methylene Chloride 6.3 U 2.0 6.3 Methyl t-butyl ether 25 U 0.43 25 m&p-xylene 4.1 U 1.3 4.1 o-xylene 6.3 U 0.77 6.3 Styrene 6.3 U 0.80 6.3 trans-1,2-dichloroethene 6.3 U 0.49 6.3 trans-1,3-dichloropropene 6.3 U 0.85 6.3 Tetrachloroethene 6.3 U 0.75 6.3 Toluene 6.3 U 0.88 6.3 Trichloroethene 6.3 U 0.29 6.3 Vinyl chloride 6.3 U 1.7 6.3 Xylenes, Total 13 U 0.77 13 Vinyl acetate 13 U 1.4 13 TestAmerica Burlington Page 34 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: 200-33700-9 % Moisture: 10.8 Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 8260B Volatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8260B 5035 06/07/2016 2056 05/25/2016 1210 Analysis Batch: 280-328785 280-328795 VMS_J J2721.D 4.093 g 5 ml Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 1,1,1-Trichloroethane 6.8 U 0.71 6.8 1,1-Dichloroethane 6.8 U 0.29 6.8 1,2,4-Trichlorobenzene 6.8 U 6.8 1,2-Dibromo-3-Chloropropane 14 U 0.82 14 1,1-Dichloroethene 6.8 U 0.81 6.8 1,1,2-Trichloroethane 6.8 U 1.2 6.8 1,1,2,2-Tetrachloroethane 6.8 U 0.84 6.8 1,2-Dichlorobenzene 6.8 U 0.62 6.8 1,2-Dichloroethane 6.8 U 0.96 6.8 1,3-Dichlorobenzene 6.8 U 0.66 6.8 2-Butanone 38 2.5 27 1,4-Dichlorobenzene 6.8 U 1.1 6.8 1,2-Dichloropropane 6.8 U 0.75 6.8 2-Hexanone 27 U 6.7 27 4-Methyl-2-pentanone 27 U 6.0 27 Benzene 6.8 U 0.64 6.8 Acetone 610 7.4 27 Bromoform 6.8 U 0.31 6.8 Bromomethane 14 U 0.68 14 Carbon tetrachloride 6.8 U 0.86 6.8 Carbon disulfide 6.8 U 0.58 6.8 Chlorobenzene 6.8 U 0.74 6.8 Bromochloromethane 6.8 U 0.41 6.8 Dibromochloromethane 6.8 U 0.78 6.8 Chloroform 14 U 0.40 14 Chloroethane 14 U 1.2 14 Chloromethane 14 U 1.1 14 cis-1,2-dichloroethene 6.8 U 0.77 6.8 cis-1,3-dichloropropene 6.8 U 1.8 6.8 Dibromomethane 6.8 U 1.2 6.8 Bromodichloromethane 6.8 U 0.30 6.8 Ethylbenzene 6.8 U 0.92 6.8 1,2-Dibromoethane 6.8 U 0.71 6.8 Methylene Chloride 6.8 U 2.2 6.8 Methyl t-butyl ether 27 U 0.47 27 m&p-xylene 4.4 U 1.4 4.4 o-xylene 6.8 U 0.84 6.8 Styrene 6.8 U 0.86 6.8 trans-1,2-dichloroethene 6.8 U 0.53 6.8 trans-1,3-dichloropropene 6.8 U 0.92 6.8 Tetrachloroethene 6.8 U 0.81 6.8 Toluene 1.6 J 0.94 6.8 Trichloroethene 6.8 U 0.31 6.8 Vinyl chloride 6.8 U 1.8 6.8 Xylenes, Total 14 U 0.84 14 Vinyl acetate 14 U 1.5 14 TestAmerica Burlington Page 37 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: 200-33700-1 % Moisture: 28.8 Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2032 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16262.D 30.3 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 720 U 51 720 Aniline 540 U F2 180 540 Phenol 460 U 25 460 Bis(2-chloroethyl)ether 460 U 23 460 2-Chlorophenol 460 U 29 460 1,3-Dichlorobenzene 460 U 17 460 1,4-Dichlorobenzene 460 U 19 460 Benzyl alcohol 460 U 14 460 1,2-Dichlorobenzene 460 U 31 460 2-Methylphenol 460 U 18 460 2,2'-oxybis[1-chloropropane] 460 U 32 460 3 & 4 Methylphenol 460 U 46 460 N-Nitrosodi-n-propylamine 460 U 43 460 Hexachloroethane 460 U 30 460 Nitrobenzene 460 U 31 460 Isophorone 460 U 24 460 2-Nitrophenol 460 U 14 460 2,4-Dimethylphenol 460 U 92 460 Benzoic acid 2200 U 460 2200 Bis(2-chloroethoxy)methane 460 U 32 460 2,4-Dichlorophenol 460 U 14 460 1,2,4-Trichlorobenzene 460 U 39 460 Naphthalene 460 U 43 460 4-Chloroaniline 460 U F1 F2 110 460 Hexachlorobutadiene 460 U 14 460 4-Chloro-3-methylphenol 460 U 92 460 2-Methylnaphthalene 460 U 26 460 Hexachlorocyclopentadiene 2400 U 69 2400 2,4,6-Trichlorophenol 460 U 14 460 2,4,5-Trichlorophenol 460 U 14 460 2-Chloronaphthalene 460 U 14 460 2-Nitroaniline 2200 U 69 2200 Dimethyl phthalate 460 U 32 460 Acenaphthylene 460 U 24 460 2,6-Dinitrotoluene 460 U 39 460 3-Nitroaniline 2200 U 100 2200 Acenaphthene 460 U 14 460 2,4-Dinitrophenol 2200 U 460 2200 4-Nitrophenol 2200 U 130 2200 Dibenzofuran 460 U 28 460 2,4-Dinitrotoluene 460 U 92 460 Diethyl phthalate 920 U 36 920 Fluorene 460 U 25 460 4-Chlorophenyl phenyl ether 460 U 29 460 5-Nitro-o-toluidine 920 U 86 920 4-Nitroaniline 2200 U 100 2200 TestAmerica Burlington Page 40 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: 200-33700-1 % Moisture: 28.8 Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2032 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16262.D 30.3 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 2200 U 460 2200 N-Nitrosodiphenylamine 460 U 29 460 4-Bromophenyl phenyl ether 460 U 26 460 Hexachlorobenzene 460 U 40 460 Pentachlorophenol 2200 U 460 2200 Phenanthrene 460 U 24 460 Anthracene 460 U 24 460 Carbazole 460 U 50 460 Di-n-butyl phthalate 260 J 40 460 Fluoranthene 460 U 50 460 Pyrene 560 U 17 560 Butyl benzyl phthalate 460 U 60 460 Benzo[a]anthracene 460 U 28 460 Chrysene 460 U 38 460 3,3'-Dichlorobenzidine 2200 U F1 130 2200 Bis(2-ethylhexyl) phthalate 460 U 64 460 Di-n-octyl phthalate 460 U 20 460 Benzo[b]fluoranthene 460 U 36 460 Benzo[k]fluoranthene 460 U 56 460 Benzo[a]pyrene 460 U 28 460 Indeno[1,2,3-cd]pyrene 460 U 31 460 Dibenz(a,h)anthracene 460 U 26 460 Benzo[g,h,i]perylene 460 U 22 460 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 73 35-105 Phenol-d5 (Surr) 76 40-100 Nitrobenzene-d5 (Surr) 69 35-100 2-Fluorobiphenyl 78 45-105 2,4,6-Tribromophenol (Surr) 92 35-125 Terphenyl-d14 (Surr) 94 30-125 TestAmerica Burlington Page 41 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: 200-33700-2 % Moisture: 30.8 Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2158 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16265.D 32.3 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 700 U 50 700 Aniline 520 U 170 520 Phenol 440 U 24 440 Bis(2-chloroethyl)ether 440 U 22 440 2-Chlorophenol 440 U 28 440 1,3-Dichlorobenzene 440 U 16 440 1,4-Dichlorobenzene 440 U 18 440 Benzyl alcohol 440 U 13 440 1,2-Dichlorobenzene 440 U 30 440 2-Methylphenol 440 U 17 440 2,2'-oxybis[1-chloropropane] 440 U 31 440 3 & 4 Methylphenol 440 U 44 440 N-Nitrosodi-n-propylamine 440 U 42 440 Hexachloroethane 440 U 29 440 Nitrobenzene 440 U 30 440 Isophorone 440 U 23 440 2-Nitrophenol 440 U 13 440 2,4-Dimethylphenol 440 U 89 440 Benzoic acid 2100 U 440 2100 Bis(2-chloroethoxy)methane 440 U 31 440 2,4-Dichlorophenol 440 U 13 440 1,2,4-Trichlorobenzene 440 U 38 440 Naphthalene 440 U 42 440 4-Chloroaniline 440 U 110 440 Hexachlorobutadiene 440 U 13 440 4-Chloro-3-methylphenol 440 U 89 440 2-Methylnaphthalene 440 U 26 440 Hexachlorocyclopentadiene 2300 U 67 2300 2,4,6-Trichlorophenol 440 U 13 440 2,4,5-Trichlorophenol 440 U 13 440 2-Chloronaphthalene 440 U 13 440 2-Nitroaniline 2100 U 67 2100 Dimethyl phthalate 440 U 31 440 Acenaphthylene 23 J 23 440 2,6-Dinitrotoluene 440 U 38 440 3-Nitroaniline 2100 U 98 2100 Acenaphthene 440 U 14 440 2,4-Dinitrophenol 2100 U 450 2100 4-Nitrophenol 2100 U 130 2100 Dibenzofuran 440 U 27 440 2,4-Dinitrotoluene 440 U 89 440 Diethyl phthalate 890 U 35 890 Fluorene 440 U 24 440 4-Chlorophenyl phenyl ether 440 U 28 440 5-Nitro-o-toluidine 890 U 83 890 4-Nitroaniline 2100 U 97 2100 TestAmerica Burlington Page 43 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: 200-33700-2 % Moisture: 30.8 Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2158 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16265.D 32.3 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 2100 U 440 2100 N-Nitrosodiphenylamine 440 U 28 440 4-Bromophenyl phenyl ether 440 U 26 440 Hexachlorobenzene 440 U 39 440 Pentachlorophenol 2100 U 440 2100 Phenanthrene 23 J 23 440 Anthracene 440 U 23 440 Carbazole 440 U 48 440 Di-n-butyl phthalate 440 U 39 440 Fluoranthene 120 J 48 440 Pyrene 120 J 16 540 Butyl benzyl phthalate 440 U 58 440 Benzo[a]anthracene 76 J 27 440 Chrysene 94 J 36 440 3,3'-Dichlorobenzidine 2100 U 120 2100 Bis(2-ethylhexyl) phthalate 440 U 62 440 Di-n-octyl phthalate 440 U 19 440 Benzo[b]fluoranthene 130 J 35 440 Benzo[k]fluoranthene 440 U 54 440 Benzo[a]pyrene 54 J 27 440 Indeno[1,2,3-cd]pyrene 43 J 30 440 Dibenz(a,h)anthracene 440 U 26 440 Benzo[g,h,i]perylene 440 U 21 440 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 78 35-105 Phenol-d5 (Surr) 78 40-100 Nitrobenzene-d5 (Surr) 73 35-100 2-Fluorobiphenyl 82 45-105 2,4,6-Tribromophenol (Surr) 94 35-125 Terphenyl-d14 (Surr) 94 30-125 TestAmerica Burlington Page 44 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: 200-33700-3 % Moisture: 10.8 Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2227 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16266.D 31.1 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 560 U 40 560 Aniline 420 U 140 420 Phenol 360 U 19 360 Bis(2-chloroethyl)ether 360 U 18 360 2-Chlorophenol 360 U 23 360 1,3-Dichlorobenzene 360 U 13 360 1,4-Dichlorobenzene 360 U 15 360 Benzyl alcohol 360 U 11 360 1,2-Dichlorobenzene 360 U 24 360 2-Methylphenol 360 U 14 360 2,2'-oxybis[1-chloropropane] 360 U 25 360 3 & 4 Methylphenol 360 U 36 360 N-Nitrosodi-n-propylamine 360 U 34 360 Hexachloroethane 360 U 23 360 Nitrobenzene 360 U 24 360 Isophorone 360 U 18 360 2-Nitrophenol 360 U 11 360 2,4-Dimethylphenol 360 U 71 360 Benzoic acid 1700 U 360 1700 Bis(2-chloroethoxy)methane 360 U 25 360 2,4-Dichlorophenol 360 U 11 360 1,2,4-Trichlorobenzene 360 U 30 360 Naphthalene 360 U 34 360 4-Chloroaniline 360 U 89 360 Hexachlorobutadiene 360 U 11 360 4-Chloro-3-methylphenol 360 U 71 360 2-Methylnaphthalene 360 U 21 360 Hexachlorocyclopentadiene 1800 U 54 1800 2,4,6-Trichlorophenol 360 U 11 360 2,4,5-Trichlorophenol 360 U 11 360 2-Chloronaphthalene 360 U 11 360 2-Nitroaniline 1700 U 54 1700 Dimethyl phthalate 360 U 25 360 Acenaphthylene 360 U 18 360 2,6-Dinitrotoluene 360 U 30 360 3-Nitroaniline 1700 U 79 1700 Acenaphthene 360 U 11 360 2,4-Dinitrophenol 1700 U 360 1700 4-Nitrophenol 1700 U 100 1700 Dibenzofuran 360 U 22 360 2,4-Dinitrotoluene 360 U 71 360 Diethyl phthalate 710 U 28 710 Fluorene 360 U 19 360 4-Chlorophenyl phenyl ether 360 U 23 360 5-Nitro-o-toluidine 710 U 67 710 4-Nitroaniline 1700 U 78 1700 TestAmerica Burlington Page 46 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: 200-33700-3 % Moisture: 10.8 Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2227 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16266.D 31.1 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1700 U 360 1700 N-Nitrosodiphenylamine 180 J 23 360 4-Bromophenyl phenyl ether 360 U 21 360 Hexachlorobenzene 360 U 31 360 Pentachlorophenol 1700 U 360 1700 Phenanthrene 110 J 18 360 Anthracene 25 J 18 360 Carbazole 360 U 39 360 Di-n-butyl phthalate 360 U 31 360 Fluoranthene 290 J 39 360 Pyrene 290 J 13 430 Butyl benzyl phthalate 360 U 47 360 Benzo[a]anthracene 130 J 22 360 Chrysene 190 J 29 360 3,3'-Dichlorobenzidine 1700 U 97 1700 Bis(2-ethylhexyl) phthalate 360 U 50 360 Di-n-octyl phthalate 360 U 16 360 Benzo[b]fluoranthene 280 J 28 360 Benzo[k]fluoranthene 85 J 43 360 Benzo[a]pyrene 130 J 22 360 Indeno[1,2,3-cd]pyrene 92 J 24 360 Dibenz(a,h)anthracene 360 U 21 360 Benzo[g,h,i]perylene 88 J 17 360 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 70 35-105 Phenol-d5 (Surr) 72 40-100 Nitrobenzene-d5 (Surr) 66 35-100 2-Fluorobiphenyl 74 45-105 2,4,6-Tribromophenol (Surr) 83 35-125 Terphenyl-d14 (Surr) 85 30-125 TestAmerica Burlington Page 47 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: 200-33700-4 % Moisture: 3.4 Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2255 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16267.D 31.2 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 520 U 37 520 Aniline 390 U 130 390 Phenol U 18 Bis(2-chloroethyl)ether U 17 2-Chlorophenol U 21 1,3-Dichlorobenzene U 12 1,4-Dichlorobenzene U 14 Benzyl alcohol U 10 1,2-Dichlorobenzene U 22 2-Methylphenol U 13 2,2'-oxybis[1-chloropropane] U 23 3 & 4 Methylphenol U 33 N-Nitrosodi-n-propylamine U 31 Hexachloroethane U 21 Nitrobenzene U 22 Isophorone U 17 2-Nitrophenol U 10 2,4-Dimethylphenol U 66 Benzoic acid 1600 U 1600 Bis(2-chloroethoxy)methane U 23 2,4-Dichlorophenol U 10 1,2,4-Trichlorobenzene U 28 Naphthalene U 31 4-Chloroaniline U 82 Hexachlorobutadiene U 10 4-Chloro-3-methylphenol U 66 2-Methylnaphthalene U 19 Hexachlorocyclopentadiene 1700 U 50 1700 2,4,6-Trichlorophenol U 10 2,4,5-Trichlorophenol U 10 2-Chloronaphthalene U 10 2-Nitroaniline 1600 U 50 1600 Dimethyl phthalate U 23 Acenaphthylene U 17 2,6-Dinitrotoluene U 28 3-Nitroaniline 1600 U 73 1600 Acenaphthene U 10 2,4-Dinitrophenol 1600 U 1600 4-Nitrophenol 1600 U 97 1600 Dibenzofuran U 20 2,4-Dinitrotoluene U 66 Diethyl phthalate 660 U 26 660 Fluorene U 18 4-Chlorophenyl phenyl ether U 21 5-Nitro-o-toluidine 660 U 62 660 4-Nitroaniline 1600 U 72 1600 TestAmerica Burlington Page 49 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: 200-33700-5 % Moisture: 4.9 Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2324 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16268.D 31.4 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 520 U 37 520 Aniline 390 U 130 390 Phenol U 18 Bis(2-chloroethyl)ether U 17 2-Chlorophenol U 21 1,3-Dichlorobenzene U 12 1,4-Dichlorobenzene U 14 Benzyl alcohol U 10 1,2-Dichlorobenzene U 22 2-Methylphenol U 13 2,2'-oxybis[1-chloropropane] U 23 3 & 4 Methylphenol U 33 N-Nitrosodi-n-propylamine U 31 Hexachloroethane U 21 Nitrobenzene U 22 Isophorone U 17 2-Nitrophenol U 10 2,4-Dimethylphenol U 66 Benzoic acid 1600 U 1600 Bis(2-chloroethoxy)methane U 23 2,4-Dichlorophenol U 10 1,2,4-Trichlorobenzene U 28 Naphthalene U 31 4-Chloroaniline U 82 Hexachlorobutadiene U 10 4-Chloro-3-methylphenol U 66 2-Methylnaphthalene U 19 Hexachlorocyclopentadiene 1700 U 50 1700 2,4,6-Trichlorophenol U 10 2,4,5-Trichlorophenol U 10 2-Chloronaphthalene U 10 2-Nitroaniline 1600 U 50 1600 Dimethyl phthalate U 23 Acenaphthylene U 17 2,6-Dinitrotoluene U 28 3-Nitroaniline 1600 U 73 1600 Acenaphthene U 10 2,4-Dinitrophenol 1600 U 1600 4-Nitrophenol 1600 U 97 1600 Dibenzofuran U 20 2,4-Dinitrotoluene U 66 Diethyl phthalate 660 U 26 660 Fluorene U 18 4-Chlorophenyl phenyl ether U 21 5-Nitro-o-toluidine 660 U 62 660 4-Nitroaniline 1600 U 73 1600 TestAmerica Burlington Page 52 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: 200-33700-5 % Moisture: 4.9 Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2324 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16268.D 31.4 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1600 U 1600 N-Nitrosodiphenylamine 76 J 21 4-Bromophenyl phenyl ether U 19 Hexachlorobenzene U 29 Pentachlorophenol 1600 U 1600 Phenanthrene 44 J 17 Anthracene U 17 Carbazole U 36 Di-n-butyl phthalate 140 J 29 Fluoranthene 130 J 36 Pyrene 130 J 12 400 Butyl benzyl phthalate U 43 Benzo[a]anthracene 69 J 20 Chrysene 100 J 27 3,3'-Dichlorobenzidine 1600 U 90 1600 Bis(2-ethylhexyl) phthalate U 46 Di-n-octyl phthalate U 14 Benzo[b]fluoranthene 140 J 26 Benzo[k]fluoranthene 48 J 40 Benzo[a]pyrene 65 J 20 Indeno[1,2,3-cd]pyrene 50 J 22 Dibenz(a,h)anthracene U 19 Benzo[g,h,i]perylene 47 J 16 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 72 35-105 Phenol-d5 (Surr) 74 40-100 Nitrobenzene-d5 (Surr) 66 35-100 2-Fluorobiphenyl 75 45-105 2,4,6-Tribromophenol (Surr) 86 35-125 Terphenyl-d14 (Surr) 88 30-125 TestAmerica Burlington Page 53 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: 200-33700-6 % Moisture: 15.6 Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2352 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16269.D 31.1 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 590 U 42 590 Aniline 450 U 150 450 Phenol 380 U 21 380 Bis(2-chloroethyl)ether 380 U 19 380 2-Chlorophenol 380 U 24 380 1,3-Dichlorobenzene 380 U 14 380 1,4-Dichlorobenzene 380 U 16 380 Benzyl alcohol 380 U 11 380 1,2-Dichlorobenzene 380 U 25 380 2-Methylphenol 380 U 15 380 2,2'-oxybis[1-chloropropane] 380 U 26 380 3 & 4 Methylphenol 380 U 38 380 N-Nitrosodi-n-propylamine 380 U 35 380 Hexachloroethane 380 U 24 380 Nitrobenzene 380 U 25 380 Isophorone 380 U 19 380 2-Nitrophenol 380 U 11 380 2,4-Dimethylphenol 380 U 75 380 Benzoic acid 1800 U 380 1800 Bis(2-chloroethoxy)methane 380 U 26 380 2,4-Dichlorophenol 380 U 11 380 1,2,4-Trichlorobenzene 380 U 32 380 Naphthalene 380 U 35 380 4-Chloroaniline 380 U 94 380 Hexachlorobutadiene 380 U 11 380 4-Chloro-3-methylphenol 380 U 75 380 2-Methylnaphthalene 380 U 22 380 Hexachlorocyclopentadiene 1900 U 57 1900 2,4,6-Trichlorophenol 380 U 11 380 2,4,5-Trichlorophenol 380 U 11 380 2-Chloronaphthalene 380 U 11 380 2-Nitroaniline 1800 U 57 1800 Dimethyl phthalate 380 U 26 380 Acenaphthylene 380 U 19 380 2,6-Dinitrotoluene 380 U 32 380 3-Nitroaniline 1800 U 83 1800 Acenaphthene 380 U 12 380 2,4-Dinitrophenol 1800 U 380 1800 4-Nitrophenol 1800 U 110 1800 Dibenzofuran 380 U 23 380 2,4-Dinitrotoluene 380 U 75 380 Diethyl phthalate 750 U 30 750 Fluorene 380 U 21 380 4-Chlorophenyl phenyl ether 380 U 24 380 5-Nitro-o-toluidine 750 U 71 750 4-Nitroaniline 1800 U 83 1800 TestAmerica Burlington Page 55 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: 200-33700-6 % Moisture: 15.6 Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/09/2016 2352 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16269.D 31.1 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1800 U 380 1800 N-Nitrosodiphenylamine 380 U 24 380 4-Bromophenyl phenyl ether 380 U 22 380 Hexachlorobenzene 380 U 33 380 Pentachlorophenol 1800 U 380 1800 Phenanthrene 79 J 19 380 Anthracene 380 U 19 380 Carbazole 380 U 41 380 Di-n-butyl phthalate 380 U 33 380 Fluoranthene 180 J 41 380 Pyrene 150 J 14 460 Butyl benzyl phthalate 380 U 49 380 Benzo[a]anthracene 62 J 23 380 Chrysene 79 J 31 380 3,3'-Dichlorobenzidine 1800 U 100 1800 Bis(2-ethylhexyl) phthalate 380 U 53 380 Di-n-octyl phthalate 380 U 16 380 Benzo[b]fluoranthene 97 J 30 380 Benzo[k]fluoranthene 380 U 46 380 Benzo[a]pyrene 380 U 23 380 Indeno[1,2,3-cd]pyrene 380 U 25 380 Dibenz(a,h)anthracene 380 U 22 380 Benzo[g,h,i]perylene 380 U 18 380 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 85 35-105 Phenol-d5 (Surr) 88 40-100 Nitrobenzene-d5 (Surr) 79 35-100 2-Fluorobiphenyl 85 45-105 2,4,6-Tribromophenol (Surr) 99 35-125 Terphenyl-d14 (Surr) 100 30-125 TestAmerica Burlington Page 56 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: 200-33700-7 % Moisture: 13.6 Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0021 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16270.D 30.3 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 600 U 42 600 Aniline 450 U 150 450 Phenol 380 U 21 380 Bis(2-chloroethyl)ether 380 U 19 380 2-Chlorophenol 380 U 24 380 1,3-Dichlorobenzene 380 U 14 380 1,4-Dichlorobenzene 380 U 16 380 Benzyl alcohol 380 U 11 380 1,2-Dichlorobenzene 380 U 25 380 2-Methylphenol 380 U 15 380 2,2'-oxybis[1-chloropropane] 380 U 26 380 3 & 4 Methylphenol 380 U 38 380 N-Nitrosodi-n-propylamine 380 U 36 380 Hexachloroethane 380 U 24 380 Nitrobenzene 380 U 25 380 Isophorone 380 U 19 380 2-Nitrophenol 380 U 11 380 2,4-Dimethylphenol 380 U 76 380 Benzoic acid 1800 U 380 1800 Bis(2-chloroethoxy)methane 380 U 26 380 2,4-Dichlorophenol 380 U 11 380 1,2,4-Trichlorobenzene 380 U 32 380 Naphthalene 380 U 36 380 4-Chloroaniline 380 U 94 380 Hexachlorobutadiene 380 U 11 380 4-Chloro-3-methylphenol 380 U 76 380 2-Methylnaphthalene 380 U 22 380 Hexachlorocyclopentadiene 1900 U 57 1900 2,4,6-Trichlorophenol 380 U 11 380 2,4,5-Trichlorophenol 380 U 11 380 2-Chloronaphthalene 380 U 11 380 2-Nitroaniline 1800 U 57 1800 Dimethyl phthalate 380 U 26 380 Acenaphthylene 39 J 19 380 2,6-Dinitrotoluene 380 U 32 380 3-Nitroaniline 1800 U 84 1800 Acenaphthene 380 U 12 380 2,4-Dinitrophenol 1800 U 380 1800 4-Nitrophenol 1800 U 110 1800 Dibenzofuran 380 U 23 380 2,4-Dinitrotoluene 380 U 76 380 Diethyl phthalate 760 U 30 760 Fluorene 380 U 21 380 4-Chlorophenyl phenyl ether 380 U 24 380 5-Nitro-o-toluidine 760 U 71 760 4-Nitroaniline 1800 U 83 1800 TestAmerica Burlington Page 58 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: 200-33700-7 % Moisture: 13.6 Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0021 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16270.D 30.3 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1800 U 380 1800 N-Nitrosodiphenylamine 380 U 24 380 4-Bromophenyl phenyl ether 380 U 22 380 Hexachlorobenzene 380 U 33 380 Pentachlorophenol 1800 U 380 1800 Phenanthrene 42 J 19 380 Anthracene 25 J 19 380 Carbazole 380 U 41 380 Di-n-butyl phthalate 380 U 33 380 Fluoranthene 270 J 41 380 Pyrene 260 J 14 460 Butyl benzyl phthalate 380 U 49 380 Benzo[a]anthracene 140 J 23 380 Chrysene 170 J 31 380 3,3'-Dichlorobenzidine 1800 U 100 1800 Bis(2-ethylhexyl) phthalate 380 U 53 380 Di-n-octyl phthalate 380 U 17 380 Benzo[b]fluoranthene 240 J 30 380 Benzo[k]fluoranthene 78 J 46 380 Benzo[a]pyrene 110 J 23 380 Indeno[1,2,3-cd]pyrene 85 J 25 380 Dibenz(a,h)anthracene 380 U 22 380 Benzo[g,h,i]perylene 64 J 18 380 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 84 35-105 Phenol-d5 (Surr) 84 40-100 Nitrobenzene-d5 (Surr) 78 35-100 2-Fluorobiphenyl 85 45-105 2,4,6-Tribromophenol (Surr) 96 35-125 Terphenyl-d14 (Surr) 98 30-125 TestAmerica Burlington Page 59 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: 200-33700-8 % Moisture: 21.1 Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0050 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16271.D 30.1 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 660 U 47 660 Aniline 490 U 160 490 Phenol 420 U 23 420 Bis(2-chloroethyl)ether 420 U 21 420 2-Chlorophenol 420 U 27 420 1,3-Dichlorobenzene 420 U 15 420 1,4-Dichlorobenzene 420 U 17 420 Benzyl alcohol 420 U 13 420 1,2-Dichlorobenzene 420 U 28 420 2-Methylphenol 420 U 16 420 2,2'-oxybis[1-chloropropane] 420 U 29 420 3 & 4 Methylphenol 420 U 42 420 N-Nitrosodi-n-propylamine 420 U 39 420 Hexachloroethane 420 U 27 420 Nitrobenzene 420 U 28 420 Isophorone 420 U 21 420 2-Nitrophenol 420 U 13 420 2,4-Dimethylphenol 420 U 83 420 Benzoic acid 2000 U 420 2000 Bis(2-chloroethoxy)methane 420 U 29 420 2,4-Dichlorophenol 420 U 13 420 1,2,4-Trichlorobenzene 420 U 35 420 Naphthalene 420 U 39 420 4-Chloroaniline 420 U 100 420 Hexachlorobutadiene 420 U 13 420 4-Chloro-3-methylphenol 420 U 83 420 2-Methylnaphthalene 420 U 24 420 Hexachlorocyclopentadiene 2100 U 63 2100 2,4,6-Trichlorophenol 420 U 13 420 2,4,5-Trichlorophenol 420 U 13 420 2-Chloronaphthalene 420 U 13 420 2-Nitroaniline 2000 U 63 2000 Dimethyl phthalate 420 U 29 420 Acenaphthylene 420 U 21 420 2,6-Dinitrotoluene 420 U 35 420 3-Nitroaniline 2000 U 92 2000 Acenaphthene 420 U 13 420 2,4-Dinitrophenol 2000 U 420 2000 4-Nitrophenol 2000 U 120 2000 Dibenzofuran 420 U 25 420 2,4-Dinitrotoluene 420 U 83 420 Diethyl phthalate 830 U 33 830 Fluorene 420 U 23 420 4-Chlorophenyl phenyl ether 420 U 27 420 5-Nitro-o-toluidine 830 U 78 830 4-Nitroaniline 2000 U 92 2000 TestAmerica Burlington Page 61 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: 200-33700-8 % Moisture: 21.1 Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0050 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16271.D 30.1 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 2000 U 420 2000 N-Nitrosodiphenylamine 420 U 27 420 4-Bromophenyl phenyl ether 420 U 24 420 Hexachlorobenzene 420 U 37 420 Pentachlorophenol 2000 U 420 2000 Phenanthrene 420 U 21 420 Anthracene 420 U 21 420 Carbazole 420 U 45 420 Di-n-butyl phthalate 420 U 37 420 Fluoranthene 420 U 45 420 Pyrene 510 U 15 510 Butyl benzyl phthalate 420 U 54 420 Benzo[a]anthracene 420 U 25 420 Chrysene 420 U 34 420 3,3'-Dichlorobenzidine 2000 U 110 2000 Bis(2-ethylhexyl) phthalate 420 U 58 420 Di-n-octyl phthalate 420 U 18 420 Benzo[b]fluoranthene 420 U 33 420 Benzo[k]fluoranthene 420 U 51 420 Benzo[a]pyrene 420 U 25 420 Indeno[1,2,3-cd]pyrene 420 U 28 420 Dibenz(a,h)anthracene 420 U 24 420 Benzo[g,h,i]perylene 420 U 20 420 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 65 35-105 Phenol-d5 (Surr) 65 40-100 Nitrobenzene-d5 (Surr) 64 35-100 2-Fluorobiphenyl 68 45-105 2,4,6-Tribromophenol (Surr) 76 35-125 Terphenyl-d14 (Surr) 77 30-125 TestAmerica Burlington Page 62 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: 200-33700-9 % Moisture: 10.8 Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0118 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16272.D 30.6 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 570 U 41 570 Aniline 430 U 140 430 Phenol 360 U 20 360 Bis(2-chloroethyl)ether 360 U 18 360 2-Chlorophenol 360 U 23 360 1,3-Dichlorobenzene 360 U 13 360 1,4-Dichlorobenzene 360 U 15 360 Benzyl alcohol 360 U 11 360 1,2-Dichlorobenzene 360 U 24 360 2-Methylphenol 360 U 14 360 2,2'-oxybis[1-chloropropane] 360 U 25 360 3 & 4 Methylphenol 360 U 36 360 N-Nitrosodi-n-propylamine 360 U 34 360 Hexachloroethane 360 U 23 360 Nitrobenzene 360 U 24 360 Isophorone 360 U 19 360 2-Nitrophenol 360 U 11 360 2,4-Dimethylphenol 360 U 73 360 Benzoic acid 1800 U 360 1800 Bis(2-chloroethoxy)methane 360 U 25 360 2,4-Dichlorophenol 360 U 11 360 1,2,4-Trichlorobenzene 360 U 31 360 Naphthalene 360 U 34 360 4-Chloroaniline 360 U 90 360 Hexachlorobutadiene 360 U 11 360 4-Chloro-3-methylphenol 360 U 73 360 2-Methylnaphthalene 360 U 21 360 Hexachlorocyclopentadiene 1900 U 55 1900 2,4,6-Trichlorophenol 360 U 11 360 2,4,5-Trichlorophenol 360 U 11 360 2-Chloronaphthalene 360 U 11 360 2-Nitroaniline 1800 U 55 1800 Dimethyl phthalate 360 U 25 360 Acenaphthylene 360 U 19 360 2,6-Dinitrotoluene 360 U 31 360 3-Nitroaniline 1800 U 80 1800 Acenaphthene 360 U 11 360 2,4-Dinitrophenol 1800 U 370 1800 4-Nitrophenol 1800 U 110 1800 Dibenzofuran 360 U 22 360 2,4-Dinitrotoluene 360 U 73 360 Diethyl phthalate 730 U 29 730 Fluorene 360 U 20 360 4-Chlorophenyl phenyl ether 360 U 23 360 5-Nitro-o-toluidine 730 U 68 730 4-Nitroaniline 1800 U 80 1800 TestAmerica Burlington Page 64 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: 200-33700-9 % Moisture: 10.8 Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0118 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16272.D 30.6 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1800 U 360 1800 N-Nitrosodiphenylamine 38 J 23 360 4-Bromophenyl phenyl ether 360 U 21 360 Hexachlorobenzene 360 U 32 360 Pentachlorophenol 1800 U 360 1800 Phenanthrene 59 J 19 360 Anthracene 24 J 19 360 Carbazole 360 U 40 360 Di-n-butyl phthalate 360 U 32 360 Fluoranthene 210 J 40 360 Pyrene 220 J 13 440 Butyl benzyl phthalate 360 U 47 360 Benzo[a]anthracene 120 J 22 360 Chrysene 530 30 360 3,3'-Dichlorobenzidine 1800 U 99 1800 Bis(2-ethylhexyl) phthalate 360 U 51 360 Di-n-octyl phthalate 360 U 16 360 Benzo[b]fluoranthene 360 29 360 Benzo[k]fluoranthene 150 J 44 360 Benzo[a]pyrene 110 J 22 360 Indeno[1,2,3-cd]pyrene 100 J 24 360 Dibenz(a,h)anthracene 360 U 21 360 Benzo[g,h,i]perylene 85 J 18 360 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 76 35-105 Phenol-d5 (Surr) 77 40-100 Nitrobenzene-d5 (Surr) 72 35-100 2-Fluorobiphenyl 79 45-105 2,4,6-Tribromophenol (Surr) 87 35-125 Terphenyl-d14 (Surr) 90 30-125 TestAmerica Burlington Page 65 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: 200-33700-1 % Moisture: 28.8 Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1130 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 31.3 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 44 U 6.8 44 PCB-1221 63 U 21 63 PCB-1232 44 U 6.9 44 PCB-1242 44 U 12 44 PCB-1248 44 U 7.5 44 PCB-1254 44 U 7.4 44 PCB-1260 44 U 3.6 44 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 89 44-130 DCB Decachlorobiphenyl 73 60-125 TestAmerica Burlington Page 102 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: 200-33700-2 % Moisture: 30.8 Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1153 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 31.2 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 46 U 7.1 46 PCB-1221 65 U 22 65 PCB-1232 46 U 7.1 46 PCB-1242 46 U 13 46 PCB-1248 46 U 7.8 46 PCB-1254 46 U 7.7 46 PCB-1260 46 U 3.7 46 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 73 44-130 DCB Decachlorobiphenyl 61 60-125 TestAmerica Burlington Page 103 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: 200-33700-3 % Moisture: 10.8 Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1216 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 30.4 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 37 U 5.6 37 PCB-1221 52 U 17 52 PCB-1232 37 U 5.7 37 PCB-1242 37 U 10 37 PCB-1248 37 U 6.2 37 PCB-1254 37 U 6.1 37 PCB-1260 37 U 2.9 37 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 81 44-130 DCB Decachlorobiphenyl 84 60-125 TestAmerica Burlington Page 104 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: 200-33700-4 % Moisture: 3.4 Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1239 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 30.1 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 34 U 5.3 34 PCB-1221 49 U 16 49 PCB-1232 34 U 5.3 34 PCB-1242 34 U 9.4 34 PCB-1248 34 U 5.8 34 PCB-1254 34 U 5.7 34 PCB-1260 34 U F2 F1 2.7 34 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 95 44-130 DCB Decachlorobiphenyl 96 60-125 TestAmerica Burlington Page 105 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: 200-33700-5 % Moisture: 4.9 Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1412 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 3 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 34 U 5.2 34 PCB-1221 48 U 16 48 PCB-1232 34 U 5.2 34 PCB-1242 34 U 9.3 34 PCB-1248 34 U 5.7 34 PCB-1254 34 U 5.6 34 PCB-1260 34 U 2.7 34 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 80 44-130 DCB Decachlorobiphenyl 80 60-125 TestAmerica Burlington Page 106 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: 200-33700-6 % Moisture: 15.6 Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1435 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 32.1 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 37 U 5.6 37 PCB-1221 52 U 17 52 PCB-1232 37 U 5.7 37 PCB-1242 37 U 10 37 PCB-1248 37 U 6.2 37 PCB-1254 37 U 6.1 37 PCB-1260 37 U 2.9 37 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 84 44-130 DCB Decachlorobiphenyl 76 60-125 TestAmerica Burlington Page 107 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: 200-33700-7 % Moisture: 13.6 Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1458 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 30.0 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 38 U 5.9 38 PCB-1221 54 U 18 54 PCB-1232 38 U 5.9 38 PCB-1242 38 U 11 38 PCB-1248 38 U 6.5 38 PCB-1254 38 U 6.4 38 PCB-1260 38 U 3.1 38 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 89 44-130 DCB Decachlorobiphenyl 94 60-125 TestAmerica Burlington Page 108 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: 200-33700-8 % Moisture: 21.1 Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1522 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 31.8 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 39 U 6.1 39 PCB-1221 56 U 19 56 PCB-1232 39 U 6.1 39 PCB-1242 39 U 11 39 PCB-1248 39 U 6.7 39 PCB-1254 39 U 6.6 39 PCB-1260 39 U 3.2 39 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 93 44-130 DCB Decachlorobiphenyl 97 60-125 TestAmerica Burlington Page 109 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: 200-33700-9 % Moisture: 10.8 Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1545 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 32.4 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 34 U 5.3 34 PCB-1221 49 U 16 49 PCB-1232 34 U 5.3 34 PCB-1242 34 U 9.5 34 PCB-1248 34 U 5.8 34 PCB-1254 34 U 5.7 34 PCB-1260 34 U 2.8 34 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 83 44-130 DCB Decachlorobiphenyl 87 60-125 TestAmerica Burlington Page 110 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: 200-33700-4 % Moisture: 3.4 Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 8151A Herbicides (GC) Analysis Method: Prep Method: 8151A 8151A 10 06/14/2016 1312 06/07/2016 2300 Analysis Batch: 280-329641 280-328790 Injection Volume: Result Type: SGC_M 50.7 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 2,4-D 820 U 140 820 Dalapon 410 U 14 410 2,4-DB 820 U 76 820 Dicamba 410 U 14 410 Dichlorprop 820 U * 33 820 MCPA 82000 U 20000 82000 MCPP 82000 U 20000 82000 2,4,5-T 200 U 23 200 Silvex (2,4,5-TP) 200 U 14 200 Surrogate %Rec Qualifier Acceptance Limits 2,4-Dichlorophenylacetic acid 69 D 27-122 TestAmerica Burlington Page 114 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: 200-33700-5 % Moisture: 4.9 Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 8151A Herbicides (GC) Analysis Method: Prep Method: 8151A 8151A 10 06/14/2016 1335 06/07/2016 2300 Analysis Batch: 280-329641 280-328790 Injection Volume: Result Type: SGC_M 50.3 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 2,4-D 840 U 150 840 Dalapon 420 U 15 420 2,4-DB 840 U 78 840 Dicamba 420 U 15 420 Dichlorprop 840 U * 33 840 MCPA 84000 U 21000 84000 MCPP 84000 U 21000 84000 2,4,5-T 210 U 24 210 Silvex (2,4,5-TP) 210 U 15 210 Surrogate %Rec Qualifier Acceptance Limits 2,4-Dichlorophenylacetic acid 48 D 27-122 TestAmerica Burlington Page 115 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: Client Matrix: 200-33700-1 Solid Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1403 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.38 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 96.3 U 24.1 96.3 HMX 96.3 U 7.42 96.3 2,4-diamino-6-nitrotoluene 96.3 U 24.1 96.3 RDX 302 16.4 96.3 Picric acid 96.3 U 10.6 96.3 1,3,5-Trinitrobenzene 96.3 U 24.1 96.3 1,3-Dinitrobenzene 96.3 U 11.6 96.3 Nitrobenzene 96.3 U 14.5 96.3 Tetryl 96.3 U 28.9 96.3 Nitroglycerin 1930 U 549 1930 2,4,6-Trinitrotoluene 96.3 U 14.5 96.3 4-Amino-2,6-dinitrotoluene 95.7 J p 15.4 96.3 2-Amino-4,6-dinitrotoluene 96.3 U 13.5 96.3 2,6-Dinitrotoluene 96.3 U 14.5 96.3 2,4-Dinitrotoluene 96.3 U 28.9 96.3 2-Nitrotoluene 96.3 U 23.1 96.3 4-Nitrotoluene 96.3 U 42.4 96.3 3-Nitrotoluene 96.3 U 40.5 96.3 PETN 4820 U 1450 4820 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 95 55-145 TestAmerica Burlington Page 120 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: Client Matrix: 200-33700-2 Solid Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1440 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.27 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 97.4 U 24.3 97.4 HMX 97.4 U 7.50 97.4 2,4-diamino-6-nitrotoluene 97.4 U 24.3 97.4 RDX 97.4 U 16.6 97.4 Picric acid 97.4 U 10.7 97.4 1,3,5-Trinitrobenzene 97.4 U 24.3 97.4 1,3-Dinitrobenzene 97.4 U 11.7 97.4 Nitrobenzene 97.4 U 14.6 97.4 Tetryl 97.4 U 29.2 97.4 Nitroglycerin 1950 U 555 1950 2,4,6-Trinitrotoluene 97.4 U 14.6 97.4 4-Amino-2,6-dinitrotoluene 62.0 J p 15.6 97.4 2-Amino-4,6-dinitrotoluene 97.4 U 13.6 97.4 2,6-Dinitrotoluene 97.4 U 14.6 97.4 2,4-Dinitrotoluene 97.4 U 29.2 97.4 2-Nitrotoluene 97.4 U 23.4 97.4 4-Nitrotoluene 97.4 U 42.8 97.4 3-Nitrotoluene 97.4 U 40.9 97.4 PETN 4870 U 1460 4870 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 97 55-145 TestAmerica Burlington Page 122 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: Client Matrix: 200-33700-3 Solid Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1517 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 9.92 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 101 U 25.2 101 HMX 101 U 7.76 101 2,4-diamino-6-nitrotoluene 101 U 25.2 101 RDX 101 U 17.1 101 Picric acid 101 U 11.1 101 1,3,5-Trinitrobenzene 101 U 25.2 101 1,3-Dinitrobenzene 101 U 12.1 101 Nitrobenzene 101 U 15.1 101 Tetryl 101 U 30.2 101 Nitroglycerin 2020 U 575 2020 2,4,6-Trinitrotoluene 101 U 15.1 101 4-Amino-2,6-dinitrotoluene 101 U 16.1 101 2-Amino-4,6-dinitrotoluene 101 U 14.1 101 2,6-Dinitrotoluene 101 U 15.1 101 2,4-Dinitrotoluene 101 U 30.2 101 2-Nitrotoluene 101 U 24.2 101 4-Nitrotoluene 101 U 44.4 101 3-Nitrotoluene 101 U 42.3 101 PETN 5040 U 1510 5040 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 99 55-145 TestAmerica Burlington Page 124 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: Client Matrix: 200-33700-4 Solid Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1555 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 9.98 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 100 U F1 25.1 100 HMX 100 U 7.72 100 2,4-diamino-6-nitrotoluene 100 U F1 25.1 100 RDX 100 U 17.0 100 Picric acid 100 U F1 1 100 1,3,5-Trinitrobenzene 100 U 25.1 100 1,3-Dinitrobenzene 100 U 12.0 100 Nitrobenzene 100 U 15.0 100 Tetryl 100 U 30.1 100 Nitroglycerin 2000 U 571 2000 2,4,6-Trinitrotoluene 100 U 15.0 100 4-Amino-2,6-dinitrotoluene 100 U 16.0 100 2-Amino-4,6-dinitrotoluene 100 U 14.0 100 2,6-Dinitrotoluene 100 U 15.0 100 2,4-Dinitrotoluene 100 U 30.1 100 2-Nitrotoluene 100 U 24.0 100 4-Nitrotoluene 100 U 44.1 100 3-Nitrotoluene 100 U 42.1 100 PETN 5010 U F1 1500 5010 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 95 55-145 TestAmerica Burlington Page 126 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: Client Matrix: 200-33700-5 Solid Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1632 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.12 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 98.8 U 24.7 98.8 HMX 21.9 J 7.61 98.8 2,4-diamino-6-nitrotoluene 98.8 U 24.7 98.8 RDX 98.8 U 16.8 98.8 Picric acid 98.8 U 10.9 98.8 1,3,5-Trinitrobenzene 98.8 U 24.7 98.8 1,3-Dinitrobenzene 98.8 U 11.9 98.8 Nitrobenzene 98.8 U 14.8 98.8 Tetryl 98.8 U 29.6 98.8 Nitroglycerin 1980 U 563 1980 2,4,6-Trinitrotoluene 98.8 U 14.8 98.8 4-Amino-2,6-dinitrotoluene 98.8 U 15.8 98.8 2-Amino-4,6-dinitrotoluene 98.8 U 13.8 98.8 2,6-Dinitrotoluene 98.8 U 14.8 98.8 2,4-Dinitrotoluene 98.8 U 29.6 98.8 2-Nitrotoluene 98.8 U 23.7 98.8 4-Nitrotoluene 98.8 U 43.5 98.8 3-Nitrotoluene 98.8 U 41.5 98.8 PETN 4940 U 1480 4940 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 97 55-145 TestAmerica Burlington Page 128 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: Client Matrix: 200-33700-6 Solid Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1710 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.02 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 99.8 U 25.0 99.8 HMX 99.8 U 7.68 99.8 2,4-diamino-6-nitrotoluene 99.8 U 25.0 99.8 RDX 99.8 U 17.0 99.8 Picric acid 99.8 U 1 99.8 1,3,5-Trinitrobenzene 99.8 U 25.0 99.8 1,3-Dinitrobenzene 99.8 U 12.0 99.8 Nitrobenzene 99.8 U 15.0 99.8 Tetryl 99.8 U 29.9 99.8 Nitroglycerin 2000 U 569 2000 2,4,6-Trinitrotoluene 99.8 U 15.0 99.8 4-Amino-2,6-dinitrotoluene 49.3 J p 16.0 99.8 2-Amino-4,6-dinitrotoluene 99.8 U 14.0 99.8 2,6-Dinitrotoluene 99.8 U 15.0 99.8 2,4-Dinitrotoluene 99.8 U 29.9 99.8 2-Nitrotoluene 99.8 U 24.0 99.8 4-Nitrotoluene 99.8 U 43.9 99.8 3-Nitrotoluene 99.8 U 41.9 99.8 PETN 4990 U 1500 4990 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 98 55-145 TestAmerica Burlington Page 130 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: Client Matrix: 200-33700-7 Solid Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1747 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 9.99 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 100 U 25.0 100 HMX 100 U 7.71 100 2,4-diamino-6-nitrotoluene 100 U 25.0 100 RDX 100 U 17.0 100 Picric acid 100 U 1 100 1,3,5-Trinitrobenzene 100 U 25.0 100 1,3-Dinitrobenzene 100 U 12.0 100 Nitrobenzene 100 U 15.0 100 Tetryl 100 U 30.0 100 Nitroglycerin 2000 U 571 2000 2,4,6-Trinitrotoluene 100 U 15.0 100 4-Amino-2,6-dinitrotoluene 35.1 J 16.0 100 2-Amino-4,6-dinitrotoluene 100 U 14.0 100 2,6-Dinitrotoluene 100 U 15.0 100 2,4-Dinitrotoluene 100 U 30.0 100 2-Nitrotoluene 100 U 24.0 100 4-Nitrotoluene 100 U 44.0 100 3-Nitrotoluene 100 U 42.0 100 PETN 5010 U 1500 5010 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 97 55-145 TestAmerica Burlington Page 132 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: Client Matrix: 200-33700-8 Solid Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1825 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 9.98 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 100 U 25.1 100 HMX 100 U 7.72 100 2,4-diamino-6-nitrotoluene 100 U 25.1 100 RDX 100 U 17.0 100 Picric acid 100 U 1 100 1,3,5-Trinitrobenzene 100 U 25.1 100 1,3-Dinitrobenzene 100 U 12.0 100 Nitrobenzene 100 U 15.0 100 Tetryl 100 U 30.1 100 Nitroglycerin 2000 U 571 2000 2,4,6-Trinitrotoluene 100 U 15.0 100 4-Amino-2,6-dinitrotoluene 30.0 J 16.0 100 2-Amino-4,6-dinitrotoluene 100 U 14.0 100 2,6-Dinitrotoluene 100 U 15.0 100 2,4-Dinitrotoluene 100 U 30.1 100 2-Nitrotoluene 100 U 24.0 100 4-Nitrotoluene 100 U 44.1 100 3-Nitrotoluene 100 U 42.1 100 PETN 5010 U 1500 5010 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 97 55-145 TestAmerica Burlington Page 134 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: Client Matrix: 200-33700-9 Solid Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 1940 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.07 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 99.3 U 24.8 99.3 HMX 99.3 U 7.65 99.3 2,4-diamino-6-nitrotoluene 99.3 U 24.8 99.3 RDX 99.3 U 16.9 99.3 Picric acid 99.3 U 10.9 99.3 1,3,5-Trinitrobenzene 99.3 U 24.8 99.3 1,3-Dinitrobenzene 99.3 U 11.9 99.3 Nitrobenzene 99.3 U 14.9 99.3 Tetryl 99.3 U 29.8 99.3 Nitroglycerin 1990 U 566 1990 2,4,6-Trinitrotoluene 99.3 U 14.9 99.3 4-Amino-2,6-dinitrotoluene 56.8 J 15.9 99.3 2-Amino-4,6-dinitrotoluene 99.3 U 13.9 99.3 2,6-Dinitrotoluene 99.3 U 14.9 99.3 2,4-Dinitrotoluene 99.3 U 29.8 99.3 2-Nitrotoluene 99.3 U 23.8 99.3 4-Nitrotoluene 99.3 U 43.7 99.3 3-Nitrotoluene 99.3 U 41.7 99.3 PETN 4970 U 1490 4970 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 97 55-145 TestAmerica Burlington Page 136 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: Client Matrix: 200-33700-1 Solid Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1331 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A05.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 1.37 0.059 0.80 TestAmerica Burlington Page 138 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: Client Matrix: 200-33700-2 Solid Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1345 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A06.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 1.99 0.059 0.80 TestAmerica Burlington Page 139 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: Client Matrix: 200-33700-3 Solid Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1400 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A07.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 1 0.058 0.79 TestAmerica Burlington Page 140 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: Client Matrix: 200-33700-4 Solid Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1415 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A08.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 4.60 0.056 0.76 TestAmerica Burlington Page 141 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: Client Matrix: 200-33700-5 Solid Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1430 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A09.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 1.22 0.058 0.78 TestAmerica Burlington Page 142 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: Client Matrix: 200-33700-6 Solid Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1445 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A10.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 2.21 0.055 0.74 TestAmerica Burlington Page 143 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: Client Matrix: 200-33700-7 Solid Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1530 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A13.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 8.38 0.056 0.75 TestAmerica Burlington Page 144 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: Client Matrix: 200-33700-8 Solid Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1545 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A14.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 1 0.058 0.78 TestAmerica Burlington Page 145 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: Client Matrix: 200-33700-9 Solid Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 6850 Perchlorate by LC/MS or LC/MS/MS-Soluble Analysis Method: Leach Date: 6850 06/10/2016 1600 06/08/2016 1033 Analysis Batch: Leach Batch: 200-105598 200-105469 Injection Volume: LC3062 P061016A15.d 10 ml 50 ul Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL Perchlorate 0.67 J 0.059 0.80 TestAmerica Burlington Page 146 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_01 Lab Sample ID: 200-33700-1 % Moisture: 28.8 Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.485 g 06/02/2016 0029 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 6.5 0.62 2.4 Barium 45.3 B 0.072 1.9 Cadmium 0.28 J 0.039 0.47 Chromium 17.6 B 0.055 3.3 Lead 19.1 0.26 0.85 Copper 28.6 0.21 4.7 Zinc 41.8 0.38 7.6 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.485 g 06/02/2016 1620 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 1.2 J 0.81 2.8 Silver 0.41 J 0.15 1.4 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.58 g 05/31/2016 1743 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 24.2 J 8.0 24.7 TestAmerica Burlington Page 147 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_02 Lab Sample ID: 200-33700-2 % Moisture: 30.8 Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.384 g 06/02/2016 0043 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 5.0 0.69 2.6 Barium 19.9 B 0.079 2.1 Cadmium 0.16 J 0.043 0.52 Chromium 18.8 B 0.061 3.7 Lead 20.9 0.28 0.94 Copper 23.3 0.23 5.2 Zinc 22.2 0.42 8.4 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.384 g 06/02/2016 1633 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 1.8 J 0.90 3.1 Silver 1.6 U 0.17 1.6 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.57 g 05/31/2016 1800 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 16.2 J 8.4 25.9 TestAmerica Burlington Page 148 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_03 Lab Sample ID: 200-33700-3 % Moisture: 10.8 Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.303 g 06/02/2016 0045 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 4.0 0.57 2.2 Barium 24.3 B 0.065 1.7 Cadmium 0.15 J 0.035 0.43 Chromium 10.7 B 0.050 3.0 Lead 11.4 0.23 0.77 Copper 9.5 0.19 4.3 Zinc 16.8 0.34 6.9 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.303 g 06/02/2016 1636 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 0.88 J 0.74 2.6 Silver 1.3 U 0.14 1.3 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.51 g 05/31/2016 1802 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 31.2 7.3 22.4 TestAmerica Burlington Page 149 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_04 Lab Sample ID: 200-33700-4 % Moisture: 3.4 Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 88 g 06/02/2016 0048 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 2.8 0.63 2.4 Barium 12.9 B 0.072 1.9 Cadmium 0.13 J 0.039 0.48 Chromium 7.6 B 0.055 3.3 Lead 8.7 0.26 0.86 Copper 9.2 0.21 4.8 Zinc 22.5 0.38 7.6 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 88 g 06/02/2016 1638 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 2.9 U 0.82 2.9 Silver 1.4 U 0.15 1.4 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.55 g 05/31/2016 1805 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 11.3 J 6.2 19.2 TestAmerica Burlington Page 150 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_05 Lab Sample ID: 200-33700-5 % Moisture: 4.9 Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.331 g 06/02/2016 0102 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 16.8 B 0.060 1.6 Cadmium 0.14 J 0.032 0.40 Chromium 9.4 B 0.046 2.8 Lead 8.6 0.21 0.71 Copper 8.0 0.17 4.0 Zinc 16.6 0.31 6.3 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.331 g 06/02/2016 1652 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 0.69 J 0.68 2.4 Silver 1.2 U 0.13 1.2 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.331 g 06/03/2016 2103 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 3.1 0.52 2.0 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.54 g 05/31/2016 1807 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 22.0 6.5 19.9 TestAmerica Burlington Page 151 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_06 Lab Sample ID: 200-33700-6 % Moisture: 15.6 Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 70 g 06/02/2016 0104 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 9.6 B 0.084 2.2 Cadmium 0.13 J 0.045 0.55 Chromium 7.6 B 0.064 3.9 Lead 9.2 0.30 Copper 7.6 0.24 5.5 Zinc 11.9 0.44 8.9 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 70 g 06/02/2016 1655 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium J 0.95 3.3 Silver 1.7 U 0.18 1.7 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 70 g 06/03/2016 2106 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 2.4 J 0.73 2.8 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.57 g 05/31/2016 1810 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 18.2 J 6.9 21.2 TestAmerica Burlington Page 152 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_07 Lab Sample ID: 200-33700-7 % Moisture: 13.6 Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.325 g 06/02/2016 0107 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 14.7 B 0.066 1.7 Cadmium 0.19 J 0.036 0.44 Chromium 1 B 0.051 3.1 Lead 12.2 0.24 0.79 Copper 14.3 0.19 4.4 Zinc 17.8 0.35 7.0 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.325 g 06/02/2016 1658 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 2.6 U 0.75 2.6 Silver 1.3 U 0.14 1.3 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.325 g 06/03/2016 2109 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 2.9 0.58 2.2 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.60 g 05/31/2016 1812 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 20.8 6.4 19.7 TestAmerica Burlington Page 153 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_08 Lab Sample ID: 200-33700-8 % Moisture: 21.1 Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 29 g 06/02/2016 0110 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 13.7 B 0.094 2.5 Cadmium 0.18 J 0.051 0.62 Chromium 10.7 B 0.071 4.3 Lead 10.2 0.33 1.1 Copper 9.8 0.27 6.2 Zinc 16.6 0.49 9.9 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 29 g 06/02/2016 1701 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 3.7 U 1.1 3.7 Silver 1.8 U 0.20 1.8 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 29 g 06/03/2016 2111 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 3.4 0.81 3.1 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.57 g 05/31/2016 1815 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 16.6 J 7.4 22.7 TestAmerica Burlington Page 154 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 J2_WC_052516_09 Lab Sample ID: 200-33700-9 % Moisture: 10.8 Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.248 g 06/02/2016 0113 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 18.9 B 0.068 1.8 Cadmium 0.18 J 0.037 0.45 Chromium 12.1 B 0.052 3.1 Lead 11.6 0.24 0.81 Copper 12.2 0.19 4.5 Zinc 19.0 0.36 7.2 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.248 g 06/02/2016 1703 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 1.3 J 0.77 2.7 Silver 0.20 J 0.14 1.3 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.248 g 06/03/2016 2114 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 4.0 0.59 2.2 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.52 g 05/31/2016 1822 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 25.9 7.2 22.0 TestAmerica Burlington Page 155 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_01 200-33700-1 Solid Date Sampled: 05/25/2016 1005 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.36 J F1 mg/kg 0.13 0.66 9012B Analysis Batch: 280-328764 06/07/2016 1300 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 14.0 U mg/kg 6.7 14.0 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 4.73 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 22.4 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 28.8 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 71.2 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 11.1 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 156 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_02 200-33700-2 Solid Date Sampled: 05/25/2016 1025 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.20 J mg/kg 0.14 0.70 9012B Analysis Batch: 280-328764 06/07/2016 1303 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 7.2 U mg/kg 3.5 7.2 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 4.81 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.2 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 30.8 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 69.2 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 14.8 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 157 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_03 200-33700-3 Solid Date Sampled: 05/25/2016 1045 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.20 J mg/kg 0.11 0.52 9012B Analysis Batch: 280-329095 06/08/2016 1304 DryWt Corrected: Y 280-328900 06/08/2016 1005 Sulfide 5.6 U mg/kg 2.7 5.6 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 4.82 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.5 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 10.8 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 89.2 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 8.96 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 158 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_04 200-33700-4 Solid Date Sampled: 05/25/2016 1100 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.17 J F2 mg/kg 0.10 0.50 9012B Analysis Batch: 280-329095 06/08/2016 1306 DryWt Corrected: Y 280-328900 06/08/2016 1005 Sulfide 5.2 U mg/kg 2.5 5.2 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.20 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.5 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 3.4 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 96.6 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 7.74 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 159 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_05 200-33700-5 Solid Date Sampled: 05/25/2016 1115 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.13 J mg/kg 0.10 0.50 9012B Analysis Batch: 280-328764 06/07/2016 1315 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 10.1 U mg/kg 4.9 10.1 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.21 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.5 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 4.9 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 95.1 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 8.69 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 160 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_06 200-33700-6 Solid Date Sampled: 05/25/2016 1126 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.19 J mg/kg 0.12 0.57 9012B Analysis Batch: 280-328764 06/07/2016 1316 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 5.9 U mg/kg 2.8 5.9 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.18 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.5 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 15.6 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 84.4 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 10.0 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 161 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_07 200-33700-7 Solid Date Sampled: 05/25/2016 1140 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.25 J mg/kg 0.11 0.54 9012B Analysis Batch: 280-328764 06/07/2016 1318 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 11.4 U mg/kg 5.5 11.4 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.31 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.2 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 13.6 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 86.4 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 17.0 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 162 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_08 200-33700-8 Solid Date Sampled: 05/25/2016 1155 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.53 J mg/kg 0.13 0.62 9012B Analysis Batch: 280-328764 06/07/2016 1319 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 12.5 U mg/kg 6.0 12.5 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 4.99 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.1 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 21.1 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 78.9 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 14.7 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 163 of 258

Client: Dawson Technical, LLC Job Number: 200-33700-1 General Chemistry Lab Sample ID: Client Matrix: J2_WC_052516_09 200-33700-9 Solid Date Sampled: 05/25/2016 1210 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.28 J mg/kg 0.11 0.51 9012B Analysis Batch: 280-328764 06/07/2016 1321 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 5.6 U mg/kg 2.7 5.6 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.27 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.2 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 10.8 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 89.2 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 7.87 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 164 of 258

DATA REPORTING QUALIFIERS Client: Dawson Technical, LLC Job Number: 200-33700-1 Lab Section Qualifier Description GC/MS VOA J U J X N Indicates an Estimated Value for TICs Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Surrogate is outside control limits This flag indicates the presumptive evidence of a compound. GC/MS Semi VOA J U F1 F2 J N Indicates an Estimated Value for TICs Indicates the analyte was analyzed for but not detected. MS and/or MSD Recovery is outside acceptance limits. MS/MSD RPD exceeds control limits Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. This flag indicates the presumptive evidence of a compound. GC VOA U F1 J X Indicates the analyte was analyzed for but not detected. MS and/or MSD Recovery is outside acceptance limits. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Surrogate is outside control limits TestAmerica Burlington Page 165 of 258

DATA REPORTING QUALIFIERS Client: Dawson Technical, LLC Job Number: 200-33700-1 Lab Section Qualifier Description GC Semi VOA B U * F1 F2 J D X D p Compound was found in the blank and sample. Indicates the analyte was analyzed for but not detected. LCS or LCSD is outside acceptance limits. MS and/or MSD Recovery is outside acceptance limits. MS/MSD RPD exceeds control limits Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Sample results are obtained from a dilution; the surrogate or matrix spike recoveries reported are calculated from diluted samples. Surrogate is outside control limits Surrogate or matrix spike recoveries were not obtained because the extract was diluted for analysis; also compounds analyzed at a dilution may be flagged with a D. The %RPD between the primary and confirmation column/detector is >40%. The lower value has been reported. HPLC/IC U F1 J p Indicates the analyte was analyzed for but not detected. MS and/or MSD Recovery is outside acceptance limits. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. The %RPD between the primary and confirmation column/detector is >40%. The lower value has been reported. LCMS U J Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Metals B U J Compound was found in the blank and sample. Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. TestAmerica Burlington Page 166 of 258

DATA REPORTING QUALIFIERS Client: Dawson Technical, LLC Job Number: 200-33700-1 Lab Section Qualifier Description General Chemistry U F1 F2 J Indicates the analyte was analyzed for but not detected. MS and/or MSD Recovery is outside acceptance limits. MS/MSD RPD exceeds control limits Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. TestAmerica Burlington Page 167 of 258

QUALITY CONTROL RESULTS TestAmerica Burlington Page 168 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC/MS VOA 280-328627 LCS 280-328627/2-A Lab Control Sample T Solid 5035 MB 280-328627/1-A Method Blank T Solid 5035 200-33700-1 J2_WC_052516_01 T Solid 5035 200-33700-2 J2_WC_052516_02 T Solid 5035 200-33700-4 J2_WC_052516_04 T Solid 5035 200-33700-5 J2_WC_052516_05 T Solid 5035 200-33700-6 J2_WC_052516_06 T Solid 5035 200-33700-7 J2_WC_052516_07 T Solid 5035 Analysis Batch:280-328628 LCS 280-328627/2-A Lab Control Sample T Solid 8260B 280-328627 MB 280-328627/1-A Method Blank T Solid 8260B 280-328627 200-33700-1 J2_WC_052516_01 T Solid 8260B 280-328627 200-33700-2 J2_WC_052516_02 T Solid 8260B 280-328627 200-33700-4 J2_WC_052516_04 T Solid 8260B 280-328627 200-33700-5 J2_WC_052516_05 T Solid 8260B 280-328627 200-33700-6 J2_WC_052516_06 T Solid 8260B 280-328627 200-33700-7 J2_WC_052516_07 T Solid 8260B 280-328627 Analysis Batch:280-328785 LCS 280-328795/2-A Lab Control Sample T Solid 8260B 280-328795 MB 280-328795/1-A Method Blank T Solid 8260B 280-328795 200-33700-3 J2_WC_052516_03 T Solid 8260B 280-328795 200-33700-4 J2_WC_052516_04 T Solid 8260B 280-328795 200-33700-8 J2_WC_052516_08 T Solid 8260B 280-328795 200-33700-9 J2_WC_052516_09 T Solid 8260B 280-328795 280-328795 LCS 280-328795/2-A Lab Control Sample T Solid 5035 MB 280-328795/1-A Method Blank T Solid 5035 200-33700-3 J2_WC_052516_03 T Solid 5035 200-33700-4 J2_WC_052516_04 T Solid 5035 200-33700-8 J2_WC_052516_08 T Solid 5035 200-33700-9 J2_WC_052516_09 T Solid 5035 Report Basis T = Total TestAmerica Burlington Page 169 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC/MS Semi VOA 280-327871 LCS 280-327871/2-A Lab Control Sample T Solid 3550C MB 280-327871/1-A Method Blank T Solid 3550C 200-33700-1 J2_WC_052516_01 T Solid 3550C 200-33700-1MS Matrix Spike T Solid 3550C 200-33700-1MSD Matrix Spike Duplicate T Solid 3550C 200-33700-2 J2_WC_052516_02 T Solid 3550C 200-33700-3 J2_WC_052516_03 T Solid 3550C 200-33700-4 J2_WC_052516_04 T Solid 3550C 200-33700-5 J2_WC_052516_05 T Solid 3550C 200-33700-6 J2_WC_052516_06 T Solid 3550C 200-33700-7 J2_WC_052516_07 T Solid 3550C 200-33700-8 J2_WC_052516_08 T Solid 3550C 200-33700-9 J2_WC_052516_09 T Solid 3550C Analysis Batch:280-329202 LCS 280-327871/2-A Lab Control Sample T Solid 8270C 280-327871 MB 280-327871/1-A Method Blank T Solid 8270C 280-327871 200-33700-1 J2_WC_052516_01 T Solid 8270C 280-327871 200-33700-1MS Matrix Spike T Solid 8270C 280-327871 200-33700-1MSD Matrix Spike Duplicate T Solid 8270C 280-327871 200-33700-2 J2_WC_052516_02 T Solid 8270C 280-327871 200-33700-3 J2_WC_052516_03 T Solid 8270C 280-327871 200-33700-4 J2_WC_052516_04 T Solid 8270C 280-327871 200-33700-5 J2_WC_052516_05 T Solid 8270C 280-327871 200-33700-6 J2_WC_052516_06 T Solid 8270C 280-327871 200-33700-7 J2_WC_052516_07 T Solid 8270C 280-327871 200-33700-8 J2_WC_052516_08 T Solid 8270C 280-327871 200-33700-9 J2_WC_052516_09 T Solid 8270C 280-327871 Report Basis T = Total TestAmerica Burlington Page 170 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC VOA 280-328537 LCS 280-328537/2-A Lab Control Sample T Solid 5035 LCSD 280-328537/3-A Lab Control Sample Duplicate T Solid 5035 MB 280-328537/1-A Method Blank T Solid 5035 200-33700-2 J2_WC_052516_02 T Solid 5035 200-33700-3 J2_WC_052516_03 T Solid 5035 200-33700-4 J2_WC_052516_04 T Solid 5035 200-33700-6 J2_WC_052516_06 T Solid 5035 200-33700-7 J2_WC_052516_07 T Solid 5035 200-33700-9 J2_WC_052516_09 T Solid 5035 Analysis Batch:280-328547 LCS 280-328537/2-A Lab Control Sample T Solid 8015B GRO DOD 280-328537 LCSD 280-328537/3-A Lab Control Sample Duplicate T Solid 8015B GRO DOD 280-328537 MB 280-328537/1-A Method Blank T Solid 8015B GRO DOD 280-328537 200-33700-2 J2_WC_052516_02 T Solid 8015B GRO DOD 280-328537 200-33700-3 J2_WC_052516_03 T Solid 8015B GRO DOD 280-328537 200-33700-4 J2_WC_052516_04 T Solid 8015B GRO DOD 280-328537 200-33700-6 J2_WC_052516_06 T Solid 8015B GRO DOD 280-328537 200-33700-7 J2_WC_052516_07 T Solid 8015B GRO DOD 280-328537 200-33700-9 J2_WC_052516_09 T Solid 8015B GRO DOD 280-328537 280-328719 LCS 280-328719/2-A Lab Control Sample T Solid 5030B MB 280-328719/1-A Method Blank T Solid 5030B 200-33700-1 J2_WC_052516_01 T Solid 5030B 200-33700-5 J2_WC_052516_05 T Solid 5030B 200-33700-5MS Matrix Spike T Solid 5030B 200-33700-5MSD Matrix Spike Duplicate T Solid 5030B 280-328729 LCS 280-328729/2-A Lab Control Sample T Solid 5035 MB 280-328729/1-A Method Blank T Solid 5035 200-33700-8 J2_WC_052516_08 T Solid 5035 Analysis Batch:280-328731 LCS 280-328719/2-A Lab Control Sample T Solid 8015B_GRO 280-328719 MB 280-328719/1-A Method Blank T Solid 8015B_GRO 280-328719 200-33700-1 J2_WC_052516_01 T Solid 8015B_GRO 280-328719 200-33700-5 J2_WC_052516_05 T Solid 8015B_GRO 280-328719 200-33700-5MS Matrix Spike T Solid 8015B_GRO 280-328719 200-33700-5MSD Matrix Spike Duplicate T Solid 8015B_GRO 280-328719 Analysis Batch:280-328733 MB 280-328729/1-A Method Blank T Solid 8015B GRO DOD 280-328729 200-33700-8 J2_WC_052516_08 T Solid 8015B GRO DOD 280-328729 TestAmerica Burlington Page 171 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC Semi VOA 280-328536 LCS 280-328536/2-A Lab Control Sample T Solid 3546 LCS 280-328536/3-A Lab Control Sample T Solid 3546 LCS 280-328536/4-A Lab Control Sample T Solid 3546 MB 280-328536/1-A Method Blank T Solid 3546 200-33700-1 J2_WC_052516_01 T Solid 3546 200-33700-1DL J2_WC_052516_01 T Solid 3546 200-33700-2 J2_WC_052516_02 T Solid 3546 200-33700-3 J2_WC_052516_03 T Solid 3546 200-33700-3DL J2_WC_052516_03 T Solid 3546 200-33700-3MS Matrix Spike T Solid 3546 200-33700-3MSD Matrix Spike Duplicate T Solid 3546 200-33700-4 J2_WC_052516_04 T Solid 3546 200-33700-4DL J2_WC_052516_04 T Solid 3546 200-33700-4MS Matrix Spike T Solid 3546 200-33700-4MSD Matrix Spike Duplicate T Solid 3546 200-33700-5 J2_WC_052516_05 T Solid 3546 200-33700-5DL J2_WC_052516_05 T Solid 3546 200-33700-6 J2_WC_052516_06 T Solid 3546 200-33700-6DL J2_WC_052516_06 T Solid 3546 200-33700-6MS Matrix Spike T Solid 3546 200-33700-6MSD Matrix Spike Duplicate T Solid 3546 200-33700-7 J2_WC_052516_07 T Solid 3546 200-33700-7DL J2_WC_052516_07 T Solid 3546 200-33700-8 J2_WC_052516_08 T Solid 3546 200-33700-8DL J2_WC_052516_08 T Solid 3546 200-33700-9 J2_WC_052516_09 T Solid 3546 200-33700-9DL J2_WC_052516_09 T Solid 3546 280-328561 LCS 280-328561/2-A Lab Control Sample T Solid 3546 MB 280-328561/1-A Method Blank T Solid 3546 200-33700-1 J2_WC_052516_01 T Solid 3546 200-33700-2 J2_WC_052516_02 T Solid 3546 200-33700-3 J2_WC_052516_03 T Solid 3546 200-33700-4 J2_WC_052516_04 T Solid 3546 200-33700-5 J2_WC_052516_05 T Solid 3546 200-33700-6 J2_WC_052516_06 T Solid 3546 200-33700-7 J2_WC_052516_07 T Solid 3546 200-33700-7MS Matrix Spike T Solid 3546 200-33700-7MSD Matrix Spike Duplicate T Solid 3546 200-33700-8 J2_WC_052516_08 T Solid 3546 200-33700-9 J2_WC_052516_09 T Solid 3546 TestAmerica Burlington Page 173 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC Semi VOA Analysis Batch:280-328891 LCS 280-328561/2-A Lab Control Sample T Solid 8015B DRO 280-328561 MB 280-328561/1-A Method Blank T Solid 8015B DRO 280-328561 200-33700-1 J2_WC_052516_01 T Solid 8015B DRO 280-328561 200-33700-2 J2_WC_052516_02 T Solid 8015B DRO 280-328561 200-33700-3 J2_WC_052516_03 T Solid 8015B DRO 280-328561 200-33700-4 J2_WC_052516_04 T Solid 8015B DRO 280-328561 200-33700-5 J2_WC_052516_05 T Solid 8015B DRO 280-328561 200-33700-6 J2_WC_052516_06 T Solid 8015B DRO 280-328561 200-33700-7 J2_WC_052516_07 T Solid 8015B DRO 280-328561 200-33700-7MS Matrix Spike T Solid 8015B DRO 280-328561 200-33700-7MSD Matrix Spike Duplicate T Solid 8015B DRO 280-328561 200-33700-8 J2_WC_052516_08 T Solid 8015B DRO 280-328561 200-33700-9 J2_WC_052516_09 T Solid 8015B DRO 280-328561 Analysis Batch:280-329199 LCS 280-328536/2-A Lab Control Sample T Solid 8081B 280-328536 LCS 280-328536/4-A Lab Control Sample T Solid 8081B 280-328536 MB 280-328536/1-A Method Blank T Solid 8081B 280-328536 200-33700-1 J2_WC_052516_01 T Solid 8081B 280-328536 200-33700-1DL J2_WC_052516_01 T Solid 8081B 280-328536 200-33700-2 J2_WC_052516_02 T Solid 8081B 280-328536 200-33700-3 J2_WC_052516_03 T Solid 8081B 280-328536 200-33700-3DL J2_WC_052516_03 T Solid 8081B 280-328536 200-33700-3MS Matrix Spike T Solid 8081B 280-328536 200-33700-3MSD Matrix Spike Duplicate T Solid 8081B 280-328536 200-33700-4 J2_WC_052516_04 T Solid 8081B 280-328536 200-33700-4DL J2_WC_052516_04 T Solid 8081B 280-328536 200-33700-5 J2_WC_052516_05 T Solid 8081B 280-328536 200-33700-5DL J2_WC_052516_05 T Solid 8081B 280-328536 200-33700-6DL J2_WC_052516_06 T Solid 8081B 280-328536 200-33700-7DL J2_WC_052516_07 T Solid 8081B 280-328536 200-33700-8DL J2_WC_052516_08 T Solid 8081B 280-328536 200-33700-9DL J2_WC_052516_09 T Solid 8081B 280-328536 Analysis Batch:280-329345 200-33700-6 J2_WC_052516_06 T Solid 8081B 280-328536 200-33700-6MS Matrix Spike T Solid 8081B 280-328536 200-33700-6MSD Matrix Spike Duplicate T Solid 8081B 280-328536 200-33700-7 J2_WC_052516_07 T Solid 8081B 280-328536 200-33700-8 J2_WC_052516_08 T Solid 8081B 280-328536 200-33700-9 J2_WC_052516_09 T Solid 8081B 280-328536 TestAmerica Burlington Page 175 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch Metals 280-327633 LCS 280-327633/2-A Lab Control Sample T Solid 3050B MB 280-327633/1-A Method Blank T Solid 3050B 200-33700-1 J2_WC_052516_01 T Solid 3050B 200-33700-1MS Matrix Spike T Solid 3050B 200-33700-1MSD Matrix Spike Duplicate T Solid 3050B 200-33700-2 J2_WC_052516_02 T Solid 3050B 200-33700-3 J2_WC_052516_03 T Solid 3050B 200-33700-4 J2_WC_052516_04 T Solid 3050B 200-33700-5 J2_WC_052516_05 T Solid 3050B 200-33700-6 J2_WC_052516_06 T Solid 3050B 200-33700-7 J2_WC_052516_07 T Solid 3050B 200-33700-8 J2_WC_052516_08 T Solid 3050B 200-33700-9 J2_WC_052516_09 T Solid 3050B 280-327680 LCS 280-327680/2-A Lab Control Sample T Solid 7471B MB 280-327680/1-A Method Blank T Solid 7471B 200-33700-1 J2_WC_052516_01 T Solid 7471B 200-33700-1MS Matrix Spike T Solid 7471B 200-33700-1MSD Matrix Spike Duplicate T Solid 7471B 200-33700-2 J2_WC_052516_02 T Solid 7471B 200-33700-3 J2_WC_052516_03 T Solid 7471B 200-33700-4 J2_WC_052516_04 T Solid 7471B 200-33700-5 J2_WC_052516_05 T Solid 7471B 200-33700-6 J2_WC_052516_06 T Solid 7471B 200-33700-7 J2_WC_052516_07 T Solid 7471B 200-33700-8 J2_WC_052516_08 T Solid 7471B 200-33700-9 J2_WC_052516_09 T Solid 7471B Analysis Batch:280-327855 LCS 280-327680/2-A Lab Control Sample T Solid 7471B 280-327680 MB 280-327680/1-A Method Blank T Solid 7471B 280-327680 200-33700-1 J2_WC_052516_01 T Solid 7471B 280-327680 200-33700-1MS Matrix Spike T Solid 7471B 280-327680 200-33700-1MSD Matrix Spike Duplicate T Solid 7471B 280-327680 200-33700-2 J2_WC_052516_02 T Solid 7471B 280-327680 200-33700-3 J2_WC_052516_03 T Solid 7471B 280-327680 200-33700-4 J2_WC_052516_04 T Solid 7471B 280-327680 200-33700-5 J2_WC_052516_05 T Solid 7471B 280-327680 200-33700-6 J2_WC_052516_06 T Solid 7471B 280-327680 200-33700-7 J2_WC_052516_07 T Solid 7471B 280-327680 200-33700-8 J2_WC_052516_08 T Solid 7471B 280-327680 200-33700-9 J2_WC_052516_09 T Solid 7471B 280-327680 TestAmerica Burlington Page 177 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch Metals Analysis Batch:280-328052 LCS 280-327633/2-A Lab Control Sample T Solid 6010C 280-327633 MB 280-327633/1-A Method Blank T Solid 6010C 280-327633 200-33700-1 J2_WC_052516_01 T Solid 6010C 280-327633 200-33700-1MS Matrix Spike T Solid 6010C 280-327633 200-33700-1MSD Matrix Spike Duplicate T Solid 6010C 280-327633 200-33700-2 J2_WC_052516_02 T Solid 6010C 280-327633 200-33700-3 J2_WC_052516_03 T Solid 6010C 280-327633 200-33700-4 J2_WC_052516_04 T Solid 6010C 280-327633 200-33700-5 J2_WC_052516_05 T Solid 6010C 280-327633 200-33700-6 J2_WC_052516_06 T Solid 6010C 280-327633 200-33700-7 J2_WC_052516_07 T Solid 6010C 280-327633 200-33700-8 J2_WC_052516_08 T Solid 6010C 280-327633 200-33700-9 J2_WC_052516_09 T Solid 6010C 280-327633 Analysis Batch:280-328232 LCS 280-327633/2-A Lab Control Sample T Solid 6010C 280-327633 MB 280-327633/1-A Method Blank T Solid 6010C 280-327633 200-33700-1 J2_WC_052516_01 T Solid 6010C 280-327633 200-33700-1MS Matrix Spike T Solid 6010C 280-327633 200-33700-1MSD Matrix Spike Duplicate T Solid 6010C 280-327633 200-33700-2 J2_WC_052516_02 T Solid 6010C 280-327633 200-33700-3 J2_WC_052516_03 T Solid 6010C 280-327633 200-33700-4 J2_WC_052516_04 T Solid 6010C 280-327633 200-33700-5 J2_WC_052516_05 T Solid 6010C 280-327633 200-33700-6 J2_WC_052516_06 T Solid 6010C 280-327633 200-33700-7 J2_WC_052516_07 T Solid 6010C 280-327633 200-33700-8 J2_WC_052516_08 T Solid 6010C 280-327633 200-33700-9 J2_WC_052516_09 T Solid 6010C 280-327633 Analysis Batch:280-328494 200-33700-5 J2_WC_052516_05 T 200-33700-6 J2_WC_052516_06 T 200-33700-7 J2_WC_052516_07 T 200-33700-8 J2_WC_052516_08 T 200-33700-9 J2_WC_052516_09 T Solid 6010C 280-327633 Solid 6010C 280-327633 Solid 6010C 280-327633 Solid 6010C 280-327633 Solid 6010C 280-327633 Report Basis T = Total TestAmerica Burlington Page 178 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch LCMS 200-105469 LCS 200-105469/2-A Lab Control Sample S Solid DI Leach MB 200-105469/1-A Method Blank S Solid DI Leach 200-33700-1 J2_WC_052516_01 S Solid DI Leach 200-33700-2 J2_WC_052516_02 S Solid DI Leach 200-33700-3 J2_WC_052516_03 S Solid DI Leach 200-33700-4 J2_WC_052516_04 S Solid DI Leach 200-33700-5 J2_WC_052516_05 S Solid DI Leach 200-33700-6 J2_WC_052516_06 S Solid DI Leach 200-33700-7 J2_WC_052516_07 S Solid DI Leach 200-33700-8 J2_WC_052516_08 S Solid DI Leach 200-33700-9 J2_WC_052516_09 S Solid DI Leach Analysis Batch:200-105598 LCS 200-105469/2-A Lab Control Sample S Solid 6850 MB 200-105469/1-A Method Blank S Solid 6850 200-33700-1 J2_WC_052516_01 S Solid 6850 200-33700-2 J2_WC_052516_02 S Solid 6850 200-33700-3 J2_WC_052516_03 S Solid 6850 200-33700-4 J2_WC_052516_04 S Solid 6850 200-33700-5 J2_WC_052516_05 S Solid 6850 200-33700-6 J2_WC_052516_06 S Solid 6850 200-33700-7 J2_WC_052516_07 S Solid 6850 200-33700-8 J2_WC_052516_08 S Solid 6850 200-33700-9 J2_WC_052516_09 S Solid 6850 Report Basis S = Soluble TestAmerica Burlington Page 179 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry Analysis Batch:280-327539 200-33700-1 J2_WC_052516_01 T 200-33700-2 J2_WC_052516_02 T 200-33700-3 J2_WC_052516_03 T 200-33700-4 J2_WC_052516_04 T 200-33700-5 J2_WC_052516_05 T 200-33700-6 J2_WC_052516_06 T 200-33700-7 J2_WC_052516_07 T 200-33700-8 J2_WC_052516_08 T 200-33700-9 J2_WC_052516_09 T Solid Solid Solid Solid Solid Solid Solid Solid Solid Moisture Moisture Moisture Moisture Moisture Moisture Moisture Moisture Moisture 280-327740 LCS 280-327740/1-A Lab Control Sample S Solid DI Leach 200-33700-1 J2_WC_052516_01 S Solid DI Leach 200-33700-1DU Duplicate S Solid DI Leach 200-33700-2 J2_WC_052516_02 S Solid DI Leach 200-33700-3 J2_WC_052516_03 S Solid DI Leach 200-33700-4 J2_WC_052516_04 S Solid DI Leach 200-33700-5 J2_WC_052516_05 S Solid DI Leach 200-33700-6 J2_WC_052516_06 S Solid DI Leach 200-33700-7 J2_WC_052516_07 S Solid DI Leach 200-33700-8 J2_WC_052516_08 S Solid DI Leach 200-33700-9 J2_WC_052516_09 S Solid DI Leach Analysis Batch:280-327788 LCS 280-327740/1-A Lab Control Sample S Solid 9045D 200-33700-1 J2_WC_052516_01 S Solid 9045D 200-33700-1DU Duplicate S Solid 9045D 200-33700-2 J2_WC_052516_02 S Solid 9045D 200-33700-3 J2_WC_052516_03 S Solid 9045D 200-33700-4 J2_WC_052516_04 S Solid 9045D 200-33700-5 J2_WC_052516_05 S Solid 9045D 200-33700-6 J2_WC_052516_06 S Solid 9045D 200-33700-7 J2_WC_052516_07 S Solid 9045D 200-33700-8 J2_WC_052516_08 S Solid 9045D 200-33700-9 J2_WC_052516_09 S Solid 9045D TestAmerica Burlington Page 180 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry 280-327935 LCS 280-327935/1-A Lab Control Sample T Solid 9030B MB 280-327935/2-A Method Blank T Solid 9030B 200-33700-1 J2_WC_052516_01 T Solid 9030B 200-33700-1MS Matrix Spike T Solid 9030B 200-33700-1MSD Matrix Spike Duplicate T Solid 9030B 200-33700-2 J2_WC_052516_02 T Solid 9030B 200-33700-3 J2_WC_052516_03 T Solid 9030B 200-33700-4 J2_WC_052516_04 T Solid 9030B 200-33700-5 J2_WC_052516_05 T Solid 9030B 200-33700-6 J2_WC_052516_06 T Solid 9030B 200-33700-7 J2_WC_052516_07 T Solid 9030B 200-33700-8 J2_WC_052516_08 T Solid 9030B 200-33700-9 J2_WC_052516_09 T Solid 9030B Analysis Batch:280-327982 LCS 280-327935/1-A Lab Control Sample T Solid 9034 280-327935 MB 280-327935/2-A Method Blank T Solid 9034 280-327935 200-33700-1 J2_WC_052516_01 T Solid 9034 280-327935 200-33700-1MS Matrix Spike T Solid 9034 280-327935 200-33700-1MSD Matrix Spike Duplicate T Solid 9034 280-327935 200-33700-2 J2_WC_052516_02 T Solid 9034 280-327935 200-33700-3 J2_WC_052516_03 T Solid 9034 280-327935 200-33700-4 J2_WC_052516_04 T Solid 9034 280-327935 200-33700-5 J2_WC_052516_05 T Solid 9034 280-327935 200-33700-6 J2_WC_052516_06 T Solid 9034 280-327935 200-33700-7 J2_WC_052516_07 T Solid 9034 280-327935 200-33700-8 J2_WC_052516_08 T Solid 9034 280-327935 200-33700-9 J2_WC_052516_09 T Solid 9034 280-327935 280-328663 HLCS 280-328663/1-A High Level Control Sample T Solid 9012B LCS 280-328663/3-A Lab Control Sample T Solid 9012B LLCS 280-328663/2-A Low Level Control Sample T Solid 9012B MB 280-328663/4-A Method Blank T Solid 9012B 200-33700-1 J2_WC_052516_01 T Solid 9012B 200-33700-1MS Matrix Spike T Solid 9012B 200-33700-1MSD Matrix Spike Duplicate T Solid 9012B 200-33700-2 J2_WC_052516_02 T Solid 9012B 200-33700-5 J2_WC_052516_05 T Solid 9012B 200-33700-6 J2_WC_052516_06 T Solid 9012B 200-33700-7 J2_WC_052516_07 T Solid 9012B 200-33700-8 J2_WC_052516_08 T Solid 9012B 200-33700-9 J2_WC_052516_09 T Solid 9012B TestAmerica Burlington Page 181 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry Analysis Batch:280-328764 HLCS 280-328663/1-A High Level Control Sample T Solid 9012B 280-328663 LCS 280-328663/3-A Lab Control Sample T Solid 9012B 280-328663 LLCS 280-328663/2-A Low Level Control Sample T Solid 9012B 280-328663 MB 280-328663/4-A Method Blank T Solid 9012B 280-328663 200-33700-1 J2_WC_052516_01 T Solid 9012B 280-328663 200-33700-1MS Matrix Spike T Solid 9012B 280-328663 200-33700-1MSD Matrix Spike Duplicate T Solid 9012B 280-328663 200-33700-2 J2_WC_052516_02 T Solid 9012B 280-328663 200-33700-5 J2_WC_052516_05 T Solid 9012B 280-328663 200-33700-6 J2_WC_052516_06 T Solid 9012B 280-328663 200-33700-7 J2_WC_052516_07 T Solid 9012B 280-328663 200-33700-8 J2_WC_052516_08 T Solid 9012B 280-328663 200-33700-9 J2_WC_052516_09 T Solid 9012B 280-328663 280-328900 HLCS 280-328900/1-A High Level Control Sample T Solid 9012B LCS 280-328900/3-A Lab Control Sample T Solid 9012B LLCS 280-328900/2-A Low Level Control Sample T Solid 9012B MB 280-328900/4-A Method Blank T Solid 9012B 200-33700-3 J2_WC_052516_03 T Solid 9012B 200-33700-4 J2_WC_052516_04 T Solid 9012B 200-33700-4MS Matrix Spike T Solid 9012B 200-33700-4MSD Matrix Spike Duplicate T Solid 9012B Analysis Batch:280-329095 HLCS 280-328900/1-A High Level Control Sample T Solid 9012B 280-328900 LCS 280-328900/3-A Lab Control Sample T Solid 9012B 280-328900 LLCS 280-328900/2-A Low Level Control Sample T Solid 9012B 280-328900 MB 280-328900/4-A Method Blank T Solid 9012B 280-328900 200-33700-3 J2_WC_052516_03 T Solid 9012B 280-328900 200-33700-4 J2_WC_052516_04 T Solid 9012B 280-328900 200-33700-4MS Matrix Spike T Solid 9012B 280-328900 200-33700-4MSD Matrix Spike Duplicate T Solid 9012B 280-328900 TestAmerica Burlington Page 182 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry Analysis Batch:280-305 LCS 280-467/3-A Lab Control Sample S Solid SM 2510B MB 280-467/4-A Method Blank S Solid SM 2510B 200-33700-1 J2_WC_052516_01 S Solid SM 2510B 200-33700-2 J2_WC_052516_02 S Solid SM 2510B 200-33700-3 J2_WC_052516_03 S Solid SM 2510B 200-33700-4 J2_WC_052516_04 S Solid SM 2510B 200-33700-5 J2_WC_052516_05 S Solid SM 2510B 200-33700-5DU Duplicate S Solid SM 2510B 200-33700-6 J2_WC_052516_06 S Solid SM 2510B 200-33700-7 J2_WC_052516_07 S Solid SM 2510B 200-33700-8 J2_WC_052516_08 S Solid SM 2510B 200-33700-9 J2_WC_052516_09 S Solid SM 2510B 280-467 LCS 280-467/3-A Lab Control Sample S Solid DI Leach MB 280-467/4-A Method Blank S Solid DI Leach 200-33700-1 J2_WC_052516_01 S Solid DI Leach 200-33700-2 J2_WC_052516_02 S Solid DI Leach 200-33700-3 J2_WC_052516_03 S Solid DI Leach 200-33700-4 J2_WC_052516_04 S Solid DI Leach 200-33700-5 J2_WC_052516_05 S Solid DI Leach 200-33700-5DU Duplicate S Solid DI Leach 200-33700-6 J2_WC_052516_06 S Solid DI Leach 200-33700-7 J2_WC_052516_07 S Solid DI Leach 200-33700-8 J2_WC_052516_08 S Solid DI Leach 200-33700-9 J2_WC_052516_09 S Solid DI Leach Analysis Batch:680-437160 LCS 680-437160/2 Lab Control Sample T Solid 1030 LCSD 680-437160/23 Lab Control Sample Duplicate T Solid 1030 MB 680-437160/1 Method Blank T Solid 1030 200-33700-1 J2_WC_052516_01 T Solid 1030 200-33700-2 J2_WC_052516_02 T Solid 1030 200-33700-3 J2_WC_052516_03 T Solid 1030 200-33700-4 J2_WC_052516_04 T Solid 1030 200-33700-5 J2_WC_052516_05 T Solid 1030 200-33700-6 J2_WC_052516_06 T Solid 1030 200-33700-7 J2_WC_052516_07 T Solid 1030 200-33700-8 J2_WC_052516_08 T Solid 1030 200-33700-9 J2_WC_052516_09 T Solid 1030 Report Basis S = Soluble T = Total TestAmerica Burlington Page 183 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch HPLC/IC 200-105051 LCS 200-105051/2-A Lab Control Sample T Solid 8 MB 200-105051/1-A Method Blank T Solid 8 200-33700-1 J2_WC_052516_01 T Solid 8 200-33700-2 J2_WC_052516_02 T Solid 8 200-33700-3 J2_WC_052516_03 T Solid 8 200-33700-4 J2_WC_052516_04 T Solid 8 200-33700-4MS Matrix Spike T Solid 8 200-33700-4MSD Matrix Spike Duplicate T Solid 8 200-33700-5 J2_WC_052516_05 T Solid 8 200-33700-6 J2_WC_052516_06 T Solid 8 200-33700-7 J2_WC_052516_07 T Solid 8 200-33700-8 J2_WC_052516_08 T Solid 8 200-33700-9 J2_WC_052516_09 T Solid 8 Analysis Batch:200-105737 LCS 200-105051/2-A Lab Control Sample T Solid 8B 200-105051 MB 200-105051/1-A Method Blank T Solid 8B 200-105051 200-33700-1 J2_WC_052516_01 T Solid 8B 200-105051 200-33700-2 J2_WC_052516_02 T Solid 8B 200-105051 200-33700-3 J2_WC_052516_03 T Solid 8B 200-105051 200-33700-4 J2_WC_052516_04 T Solid 8B 200-105051 200-33700-4MS Matrix Spike T Solid 8B 200-105051 200-33700-4MSD Matrix Spike Duplicate T Solid 8B 200-105051 200-33700-5 J2_WC_052516_05 T Solid 8B 200-105051 200-33700-6 J2_WC_052516_06 T Solid 8B 200-105051 200-33700-7 J2_WC_052516_07 T Solid 8B 200-105051 200-33700-8 J2_WC_052516_08 T Solid 8B 200-105051 200-33700-9 J2_WC_052516_09 T Solid 8B 200-105051 Analysis Batch:200-105755 LCS 200-105051/2-A Lab Control Sample T Solid 8B 200-105051 MB 200-105051/1-A Method Blank T Solid 8B 200-105051 200-33700-1 J2_WC_052516_01 T Solid 8B 200-105051 200-33700-2 J2_WC_052516_02 T Solid 8B 200-105051 200-33700-3 J2_WC_052516_03 T Solid 8B 200-105051 200-33700-4 J2_WC_052516_04 T Solid 8B 200-105051 200-33700-4MS Matrix Spike T Solid 8B 200-105051 200-33700-4MSD Matrix Spike Duplicate T Solid 8B 200-105051 200-33700-5 J2_WC_052516_05 T Solid 8B 200-105051 200-33700-6 J2_WC_052516_06 T Solid 8B 200-105051 200-33700-7 J2_WC_052516_07 T Solid 8B 200-105051 200-33700-8 J2_WC_052516_08 T Solid 8B 200-105051 200-33700-9 J2_WC_052516_09 T Solid 8B 200-105051 TestAmerica Burlington Page 184 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8B Nitroaromatics and Nitramines (HPLC) Lab Sample ID Client Sample ID 12DNB1 %Rec 200-33700-1 J2_WC_052516_01 95 12DNB2 %Rec 200-33700-1 J2_WC_052516_01 106 200-33700-2 J2_WC_052516_02 97 200-33700-2 J2_WC_052516_02 107 200-33700-3 J2_WC_052516_03 99 200-33700-3 J2_WC_052516_03 101 200-33700-4 J2_WC_052516_04 95 200-33700-4 J2_WC_052516_04 100 200-33700-5 J2_WC_052516_05 97 200-33700-5 J2_WC_052516_05 102 200-33700-6 J2_WC_052516_06 98 200-33700-6 J2_WC_052516_06 107 200-33700-7 J2_WC_052516_07 97 200-33700-7 J2_WC_052516_07 106 200-33700-8 J2_WC_052516_08 97 200-33700-8 J2_WC_052516_08 98 200-33700-9 J2_WC_052516_09 97 200-33700-9 J2_WC_052516_09 105 MB 200-105051/1-A 98 MB 200-105051/1-A 105 LCS 200-105051/2-A 104 LCS 200-105051/2-A 105 200-33700-4 MS J2_WC_052516_04 MS 200-33700-4 MS J2_WC_052516_04 MS 200-33700-4 MSD J2_WC_052516_04 MSD 200-33700-4 MSD J2_WC_052516_04 MSD 101 101 109 106 Surrogate Acceptance Limits 12DNB = 1,2-Dinitrobenzene 55-145 TestAmerica Burlington Page 186 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8260B Volatile Organic Compounds (GC/MS) Lab Sample ID Client Sample ID TOL DCA BFB DBFM %Rec %Rec %Rec %Rec 200-33700-1 J2_WC_052516_01 99 104 99 107 200-33700-2 J2_WC_052516_02 111 113 112 115 200-33700-3 J2_WC_052516_03 117X 107 128X 112 200-33700-4 J2_WC_052516_04 62X 71 60X 71 200-33700-4 J2_WC_052516_04 62X 64 65X 65X 200-33700-5 J2_WC_052516_05 99 104 106 102 200-33700-6 J2_WC_052516_06 108 114 122X 114 200-33700-7 J2_WC_052516_07 120X 120 130X 123 200-33700-8 J2_WC_052516_08 96 95 97 96 200-33700-9 J2_WC_052516_09 98 96 101 101 MB 280-328627/1-A 106 100 100 103 MB 280-328795/1-A 100 110 95 109 LCS 280-328627/2-A 103 99 109 106 LCS 280-328795/2-A 91 96 95 98 Surrogate Acceptance Limits TOL = Toluene-d8 85-115 DCA = 1,2-Dichloroethane-d4 61-129 BFB = 4-Bromofluorobenzene (Surr) 85-120 DBFM = Dibromofluoromethane (Surr) 71-126 TestAmerica Burlington Page 187 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8270C Semivolatile Organic Compounds (GC/MS) Lab Sample ID Client Sample ID 2FP PHL NBZ FBP TBP TPH %Rec %Rec %Rec %Rec %Rec %Rec 200-33700-1 J2_WC_052516_01 73 76 69 78 92 94 200-33700-2 J2_WC_052516_02 78 78 73 82 94 94 200-33700-3 J2_WC_052516_03 70 72 66 74 83 85 200-33700-4 J2_WC_052516_04 75 76 70 78 89 91 200-33700-5 J2_WC_052516_05 72 74 66 75 86 88 200-33700-6 J2_WC_052516_06 85 88 79 85 99 100 200-33700-7 J2_WC_052516_07 84 84 78 85 96 98 200-33700-8 J2_WC_052516_08 65 65 64 68 76 77 200-33700-9 J2_WC_052516_09 76 77 72 79 87 90 MB 280-327871/1-A 81 79 76 81 84 92 LCS 280-327871/2-A 81 81 77 81 95 94 200-33700-1 MS J2_WC_052516_01 MS 200-33700-1 MSD J2_WC_052516_01 MSD 76 76 70 76 86 89 80 82 76 85 95 92 Surrogate Acceptance Limits 2FP = 2-Fluorophenol (Surr) 35-105 PHL = Phenol-d5 (Surr) 40-100 NBZ = Nitrobenzene-d5 (Surr) 35-100 FBP = 2-Fluorobiphenyl 45-105 TBP = 2,4,6-Tribromophenol (Surr) 35-125 TPH = Terphenyl-d14 (Surr) 30-125 TestAmerica Burlington Page 188 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8015B GRO DOD Gasoline Range Organics - (GC) Lab Sample ID Client Sample ID TFT1 %Rec 200-33700-2 J2_WC_052516_02 127X 200-33700-3 J2_WC_052516_03 120 200-33700-4 J2_WC_052516_04 117 200-33700-6 J2_WC_052516_06 116 200-33700-7 J2_WC_052516_07 140X 200-33700-8 J2_WC_052516_08 117 200-33700-9 J2_WC_052516_09 129X MB 280-328537/1-A 84 MB 280-328729/1-A 81 LCS 280-328537/2-A 89 LCS 280-328729/2-A 77 LCSD 280-328537/3-A 96 Surrogate Acceptance Limits TFT = a,a,a-trifluorotoluene 77-123 TestAmerica Burlington Page 189 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8015B_GRO Gasoline Range Organics (GRO) Lab Sample ID Client Sample ID TFT %Rec 200-33700-1 J2_WC_052516_01 67X 200-33700-5 J2_WC_052516_05 88 MB 280-328719/1-A 88 LCS 280-328719/2-A 85 200-33700-5 MS J2_WC_052516_05 MS 200-33700-5 MSD J2_WC_052516_05 MSD 87 87 Surrogate Acceptance Limits TFT = a,a,a-trifluorotoluene 77-130 TestAmerica Burlington Page 190 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8015B DRO Diesel Range Organics (DRO) (GC) Lab Sample ID Client Sample ID OTPH1 %Rec OTC1 %Rec 200-33700-1 J2_WC_052516_01 75 88 200-33700-2 J2_WC_052516_02 75 75 200-33700-3 J2_WC_052516_03 89 215X 200-33700-4 J2_WC_052516_04 91 104 200-33700-5 J2_WC_052516_05 81 186X 200-33700-6 J2_WC_052516_06 80 112 200-33700-7 J2_WC_052516_07 87 177X 200-33700-8 J2_WC_052516_08 99 92 200-33700-9 J2_WC_052516_09 76 190X MB 280-328561/1-A 92 92 LCS 280-328561/2-A 96 91 200-33700-7 MS J2_WC_052516_07 MS 200-33700-7 MSD J2_WC_052516_07 MSD 83 171X 86 111 Surrogate Acceptance Limits OTPH = o-terphenyl (Surr) 45-130 OTC = n-octacosane 25-162 TestAmerica Burlington Page 191 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8081B Organochlorine Pesticides (GC) Lab Sample ID Client Sample ID TCX1 TCX2 DCB1 DCB2 %Rec %Rec %Rec %Rec 200-33700-1 DL J2_WC_052516_01 DL 78D 29X D 200-33700-1 J2_WC_052516_01 69X 61 200-33700-2 J2_WC_052516_02 46D X 8D X 200-33700-3 DL J2_WC_052516_03 DL 43X D 50X D 200-33700-3 J2_WC_052516_03 73 61 200-33700-4 DL J2_WC_052516_04 DL 57X D 37X D 200-33700-4 J2_WC_052516_04 72 51X 200-33700-5 DL J2_WC_052516_05 DL 45X D 29X D 200-33700-5 J2_WC_052516_05 63X 51X 200-33700-6 DL J2_WC_052516_06 DL 61X D 32X D 200-33700-6 J2_WC_052516_06 73 61 200-33700-7 DL J2_WC_052516_07 DL 61X D 48X D 200-33700-7 J2_WC_052516_07 62X 67 200-33700-8 DL J2_WC_052516_08 72D 45X D DL 200-33700-8 J2_WC_052516_08 72 59 200-33700-9 DL J2_WC_052516_09 75D 56D DL 200-33700-9 J2_WC_052516_09 67X 85 MB 280-328536/1-A 101 101 LCS 280-328536/2-A 98 98 LCS 280-328536/4-A 95 95 200-33700-3 MS J2_WC_052516_03 MS 200-33700-6 MS J2_WC_052516_06 MS 200-33700-3 MSD J2_WC_052516_03 MSD 70 66 53X 59 56X 55 Surrogate Acceptance Limits TCX = Tetrachloro-m-xylene 70-125 DCB = DCB Decachlorobiphenyl 55-130 TestAmerica Burlington Page 192 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8081B Organochlorine Pesticides (GC) Lab Sample ID Client Sample ID 200-33700-6 MSD J2_WC_052516_06 MSD TCX1 TCX2 DCB1 DCB2 %Rec %Rec %Rec %Rec 65X 56 Surrogate Acceptance Limits TCX = Tetrachloro-m-xylene 70-125 DCB = DCB Decachlorobiphenyl 55-130 TestAmerica Burlington Page 193 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Lab Sample ID Client Sample ID TCX1 %Rec DCB1 %Rec 200-33700-1 J2_WC_052516_01 89 73 200-33700-2 J2_WC_052516_02 73 61 200-33700-3 J2_WC_052516_03 81 84 200-33700-4 J2_WC_052516_04 95 96 200-33700-5 J2_WC_052516_05 80 80 200-33700-6 J2_WC_052516_06 84 76 200-33700-7 J2_WC_052516_07 89 94 200-33700-8 J2_WC_052516_08 93 97 200-33700-9 J2_WC_052516_09 83 87 MB 280-328536/1-A 98 89 LCS 280-328536/3-A 99 105 200-33700-4 MS J2_WC_052516_04 MS 200-33700-4 MSD J2_WC_052516_04 MSD 92 95 87 90 Surrogate Acceptance Limits TCX = Tetrachloro-m-xylene 44-130 DCB = DCB Decachlorobiphenyl 60-125 TestAmerica Burlington Page 194 of 258

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33700-1 Surrogate Recovery Report 8151A Herbicides (GC) Lab Sample ID Client Sample ID DCPA1 %Rec 200-33700-1 J2_WC_052516_01 60D 200-33700-2 J2_WC_052516_02 70D 200-33700-3 J2_WC_052516_03 75D 200-33700-4 J2_WC_052516_04 69D 200-33700-5 J2_WC_052516_05 48D 200-33700-6 J2_WC_052516_06 75D 200-33700-7 J2_WC_052516_07 73D 200-33700-8 J2_WC_052516_08 63D 200-33700-9 J2_WC_052516_09 79D MB 280-328790/1-A 63 MB 280-328860/1-A 78 LCS 280-328790/2-A 66 LCS 280-328860/2-A 78 200-33700-6 MS J2_WC_052516_06 MS 200-33700-6 MSD J2_WC_052516_06 MSD 72D 71D Surrogate Acceptance Limits DCPA = 2,4-Dichlorophenylacetic acid 27-122 TestAmerica Burlington Page 195 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328627 Method: 8260B Preparation: 5035 Job Number: 200-33700-1 Lab Sample ID: MB 280-328627/1-A 06/06/2016 2209 06/06/2016 1800 Leach Date: Analysis Batch: Leach Batch: Units: 280-328628 280-328627 ug/kg VMS_J J2677.D 5 g 5 ml Analyte Result Qual MDL RL 1,1,1-Trichloroethane 1,1-Dichloroethane 1,2,4-Trichlorobenzene 1,2-Dibromo-3-Chloropropane 1,1-Dichloroethene 1,1,2-Trichloroethane 1,1,2,2-Tetrachloroethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,3-Dichlorobenzene 2-Butanone 1,4-Dichlorobenzene 1,2-Dichloropropane 2-Hexanone 4-Methyl-2-pentanone Benzene Acetone Bromoform Bromomethane Carbon tetrachloride Carbon disulfide Chlorobenzene Bromochloromethane Dibromochloromethane Chloroform Chloroethane Chloromethane cis-1,2-dichloroethene cis-1,3-dichloropropene Dibromomethane Bromodichloromethane Ethylbenzene 1,2-Dibromoethane Methylene Chloride Methyl t-butyl ether m&p-xylene o-xylene Styrene trans-1,2-dichloroethene trans-1,3-dichloropropene Tetrachloroethene Toluene Trichloroethene Vinyl chloride Xylenes, Total 5.0 U 0.52 5.0 5.0 U 0.21 5.0 5.0 U 0.73 5.0 10 U 0.60 10 5.0 U 0.59 5.0 5.0 U 0.88 5.0 5.0 U 0.61 5.0 5.0 U 0.45 5.0 5.0 U 0.70 5.0 5.0 U 0.48 5.0 20 U 1.8 20 5.0 U 0.78 5.0 5.0 U 0.55 5.0 20 U 4.9 20 20 U 4.4 20 5.0 U 0.47 5.0 20 U 5.4 20 5.0 U 0.23 5.0 10 U 0.50 10 5.0 U 0.63 5.0 5.0 U 0.42 5.0 5.0 U 0.54 5.0 5.0 U 0.30 5.0 5.0 U 0.57 5.0 10 U 0.29 10 10 U 0.89 10 10 U 0.77 10 5.0 U 0.56 5.0 5.0 U 1.3 5.0 5.0 U 0.84 5.0 5.0 U 0.22 5.0 5.0 U 0.67 5.0 5.0 U 0.52 5.0 5.0 U 1.6 5.0 20 U 0.34 20 3.2 U 3.2 5.0 U 0.61 5.0 5.0 U 0.63 5.0 5.0 U 0.39 5.0 5.0 U 0.67 5.0 5.0 U 0.59 5.0 5.0 U 0.69 5.0 5.0 U 0.23 5.0 5.0 U 1.3 5.0 10 U 0.61 10 TestAmerica Burlington Page 196 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-328627 Method: 8260B Preparation: 5035 Job Number: 200-33700-1 Lab Sample ID: LCS 280-328627/2-A Client Matrix: Solid 06/06/2016 2149 06/06/2016 1800 Leach Date: Analysis Batch: Leach Batch: Units: 280-328628 280-328627 ug/kg VMS_J J2676.D 5 g 5 ml Analyte Spike Amount Result % Rec. Limit Qual 1,1,1-Trichloroethane 1,1-Dichloroethane 1,2,4-Trichlorobenzene 1,2-Dibromo-3-Chloropropane 1,1-Dichloroethene 1,1,2-Trichloroethane 1,1,2,2-Tetrachloroethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,3-Dichlorobenzene 2-Butanone 1,4-Dichlorobenzene 1,2-Dichloropropane 2-Hexanone 4-Methyl-2-pentanone Benzene Acetone Bromoform Bromomethane Carbon tetrachloride Carbon disulfide Chlorobenzene Bromochloromethane Dibromochloromethane Chloroform Chloroethane Chloromethane cis-1,2-dichloroethene cis-1,3-dichloropropene Dibromomethane Bromodichloromethane Ethylbenzene 1,2-Dibromoethane Methylene Chloride Methyl t-butyl ether m&p-xylene o-xylene Styrene trans-1,2-dichloroethene trans-1,3-dichloropropene Tetrachloroethene 50.0 58.1 116 70-135 50.0 54.8 110 75-125 50.0 54.6 109 65-130 50.0 52.5 105 40-135 50.0 57.1 114 65-135 50.0 59.2 118 60-125 50.0 49.4 99 55-130 50.0 5 102 75-120 50.0 59.8 120 70-135 50.0 50.4 101 70-125 200 242 121 30-160 50.0 50.0 100 70-125 50.0 51.5 103 70-120 200 252 126 45-145 200 257 129 45-145 50.0 55.4 111 75-125 200 220 110 20-160 50.0 54.5 109 55-135 50.0 41.2 82 30-160 50.0 62.0 124 65-135 50.0 57.7 115 45-160 50.0 49.4 99 75-125 50.0 58.7 117 70-125 50.0 53.7 107 65-130 50.0 57.9 116 70-125 50.0 41.6 83 40-155 50.0 36.9 74 50-130 50.0 57.8 116 65-125 50.0 50.7 101 70-125 50.0 59.0 118 75-130 50.0 59.9 120 70-130 50.0 49.0 98 75-125 50.0 54.5 109 70-125 50.0 48.2 96 55-140 50.0 57.8 116 67-119 50.0 50.8 102 80-125 50.0 50.8 102 75-125 50.0 52.5 105 75-125 50.0 58.5 117 65-135 50.0 57.7 115 65-125 50.0 52.8 106 65-140 TestAmerica Burlington Page 198 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328795 Method: 8260B Preparation: 5035 Job Number: 200-33700-1 Lab Sample ID: MB 280-328795/1-A 06/07/2016 1855 06/07/2016 1700 Leach Date: Analysis Batch: Leach Batch: Units: 280-328785 280-328795 ug/kg VMS_J J2715.D 5 g 5 ml Analyte Result Qual MDL RL 1,1,1-Trichloroethane 1,1-Dichloroethane 1,2,4-Trichlorobenzene 1,2-Dibromo-3-Chloropropane 1,1-Dichloroethene 1,1,2-Trichloroethane 1,1,2,2-Tetrachloroethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,3-Dichlorobenzene 2-Butanone 1,4-Dichlorobenzene 1,2-Dichloropropane 2-Hexanone 4-Methyl-2-pentanone Benzene Acetone Bromoform Bromomethane Carbon tetrachloride Carbon disulfide Chlorobenzene Bromochloromethane Dibromochloromethane Chloroform Chloroethane Chloromethane cis-1,2-dichloroethene cis-1,3-dichloropropene Dibromomethane Bromodichloromethane Ethylbenzene 1,2-Dibromoethane Methylene Chloride Methyl t-butyl ether m&p-xylene o-xylene Styrene trans-1,2-dichloroethene trans-1,3-dichloropropene Tetrachloroethene Toluene Trichloroethene Vinyl chloride Xylenes, Total 5.0 U 0.52 5.0 5.0 U 0.21 5.0 5.0 U 0.73 5.0 10 U 0.60 10 5.0 U 0.59 5.0 5.0 U 0.88 5.0 5.0 U 0.61 5.0 5.0 U 0.45 5.0 5.0 U 0.70 5.0 5.0 U 0.48 5.0 20 U 1.8 20 5.0 U 0.78 5.0 5.0 U 0.55 5.0 20 U 4.9 20 20 U 4.4 20 5.0 U 0.47 5.0 20 U 5.4 20 5.0 U 0.23 5.0 10 U 0.50 10 5.0 U 0.63 5.0 5.0 U 0.42 5.0 5.0 U 0.54 5.0 5.0 U 0.30 5.0 5.0 U 0.57 5.0 10 U 0.29 10 10 U 0.89 10 10 U 0.77 10 5.0 U 0.56 5.0 5.0 U 1.3 5.0 5.0 U 0.84 5.0 5.0 U 0.22 5.0 5.0 U 0.67 5.0 5.0 U 0.52 5.0 5.0 U 1.6 5.0 20 U 0.34 20 3.2 U 3.2 5.0 U 0.61 5.0 5.0 U 0.63 5.0 5.0 U 0.39 5.0 5.0 U 0.67 5.0 5.0 U 0.59 5.0 5.0 U 0.69 5.0 5.0 U 0.23 5.0 5.0 U 1.3 5.0 10 U 0.61 10 TestAmerica Burlington Page 200 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-328795 Method: 8260B Preparation: 5035 Job Number: 200-33700-1 Lab Sample ID: LCS 280-328795/2-A Client Matrix: Solid 06/07/2016 1915 06/07/2016 1700 Leach Date: Analysis Batch: Leach Batch: Units: 280-328785 280-328795 ug/kg VMS_J J2716.D 5 g 5 ml Analyte Spike Amount Result % Rec. Limit Qual 1,1,1-Trichloroethane 1,1-Dichloroethane 1,2,4-Trichlorobenzene 1,2-Dibromo-3-Chloropropane 1,1-Dichloroethene 1,1,2-Trichloroethane 1,1,2,2-Tetrachloroethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,3-Dichlorobenzene 2-Butanone 1,4-Dichlorobenzene 1,2-Dichloropropane 2-Hexanone 4-Methyl-2-pentanone Benzene Acetone Bromoform Bromomethane Carbon tetrachloride Carbon disulfide Chlorobenzene Bromochloromethane Dibromochloromethane Chloroform Chloroethane Chloromethane cis-1,2-dichloroethene cis-1,3-dichloropropene Dibromomethane Bromodichloromethane Ethylbenzene 1,2-Dibromoethane Methylene Chloride Methyl t-butyl ether m&p-xylene o-xylene Styrene trans-1,2-dichloroethene trans-1,3-dichloropropene Tetrachloroethene 50.0 54.0 108 70-135 50.0 47.0 94 75-125 50.0 43.4 87 65-130 50.0 43.8 88 40-135 50.0 49.6 99 65-135 50.0 53.2 106 60-125 50.0 41.4 83 55-130 50.0 41.9 84 75-120 50.0 53.1 106 70-135 50.0 41.4 83 70-125 200 226 113 30-160 50.0 40.9 82 70-125 50.0 45.0 90 70-120 200 225 112 45-145 200 239 120 45-145 50.0 48.7 97 75-125 200 212 106 20-160 50.0 49.6 99 55-135 50.0 46.4 93 30-160 50.0 57.6 115 65-135 50.0 50.6 101 45-160 50.0 42.7 85 75-125 50.0 53.0 106 70-125 50.0 46.7 93 65-130 50.0 52.0 104 70-125 50.0 42.4 85 40-155 50.0 42.6 85 50-130 50.0 50.6 101 65-125 50.0 41.9 84 70-125 50.0 53.0 106 75-130 50.0 52.8 106 70-130 50.0 43.0 86 75-125 50.0 47.0 94 70-125 50.0 43.3 87 55-140 50.0 51.7 103 67-119 50.0 43.8 88 80-125 50.0 44.0 88 75-125 50.0 45.2 90 75-125 50.0 52.1 104 65-135 50.0 51.4 103 65-125 50.0 46.8 94 65-140 TestAmerica Burlington Page 202 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-327871/1-A Analysis Batch: 280-329202 SMS_D Solid 280-327871 D16258.D Leach Batch: 30 g 06/09/2016 1837 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Analyte Result Qual MDL RL N-Nitrosodimethylamine Aniline Phenol Bis(2-chloroethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzyl alcohol 1,2-Dichlorobenzene 2-Methylphenol 2,2'-oxybis[1-chloropropane] 3 & 4 Methylphenol N-Nitrosodi-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Benzoic acid Bis(2-chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Naphthalene 4-Chloroaniline Hexachlorobutadiene 4-Chloro-3-methylphenol 2-Methylnaphthalene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol 2-Chloronaphthalene 2-Nitroaniline Dimethyl phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene Diethyl phthalate Fluorene 4-Chlorophenyl phenyl ether 5-Nitro-o-toluidine 520 U 37 520 390 U 130 390 U 18 U 17 U 21 U 12 U 14 U 10 U 22 U 13 U 23 U 33 U 31 U 21 U 22 U 17 U 10 U 66 1600 U 1600 U 23 U 10 U 28 U 31 U 82 U 10 U 66 U 19 1700 U 50 1700 U 10 U 10 U 10 1600 U 50 1600 U 23 U 17 U 28 1600 U 73 1600 U 10 1600 U 1600 1600 U 97 1600 U 20 U 66 660 U 26 660 U 18 U 21 660 U 62 660 TestAmerica Burlington Page 204 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-327871/1-A Analysis Batch: 280-329202 SMS_D Solid 280-327871 D16258.D Leach Batch: 30 g 06/09/2016 1837 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Analyte Result Qual MDL RL 4-Nitroaniline 4,6-Dinitro-2-methylphenol N-Nitrosodiphenylamine 4-Bromophenyl phenyl ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-n-butyl phthalate Fluoranthene Pyrene Butyl benzyl phthalate Benzo[a]anthracene Chrysene 3,3'-Dichlorobenzidine Bis(2-ethylhexyl) phthalate Di-n-octyl phthalate Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-cd]pyrene Dibenz(a,h)anthracene Benzo[g,h,i]perylene 1600 U 73 1600 1600 U 1600 U 21 U 19 U 29 1600 U 1600 U 17 U 17 U 36 U 29 U 36 400 U 12 400 U 43 U 20 U 27 1600 U 90 1600 U 46 U 14 U 26 U 40 U 20 U 22 U 19 U 16 Surrogate % Rec Acceptance Limits 2-Fluorophenol (Surr) 81 35-105 Phenol-d5 (Surr) 79 40-100 Nitrobenzene-d5 (Surr) 76 35-100 2-Fluorobiphenyl 81 45-105 2,4,6-Tribromophenol (Surr) 84 35-125 Terphenyl-d14 (Surr) 92 30-125 Method Blank TICs- Batch: 280-327871 Cas Number Analyte RT Est. Result (ug/ Qual 106-42-3 p-xylene 3.56 883 J N Unknown 3.24 5190 J TestAmerica Burlington Page 205 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33700-1 Lab Sample ID: LCS 280-327871/2-A Analysis Batch: 280-329202 SMS_D Client Matrix: Solid Leach Batch: 280-327871 D16259.D 30 g 06/09/2016 1906 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Leach Date: Analyte Spike Amount Result % Rec. Limit Qual N-Nitrosodimethylamine Aniline Phenol Bis(2-chloroethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzyl alcohol 1,2-Dichlorobenzene 2-Methylphenol 2,2'-oxybis[1-chloropropane] 3 & 4 Methylphenol N-Nitrosodi-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Benzoic acid Bis(2-chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Naphthalene 4-Chloroaniline Hexachlorobutadiene 4-Chloro-3-methylphenol 2-Methylnaphthalene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol 2-Chloronaphthalene 2-Nitroaniline Dimethyl phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2670 1760 66 20-115 2670 1520 57 10-120 2670 2160 81 40-100 2670 2040 77 40-105 2670 2130 80 45-105 2670 1950 73 40-100 2670 2010 75 35-105 2670 2070 78 20-125 2670 1970 74 45-95 2670 2110 79 40-105 2670 1980 74 20-115 2670 2190 82 40-105 2670 2110 79 40-115 2670 1980 74 35-110 2670 2100 79 40-115 2670 1980 74 45-110 2670 2210 83 40-110 2670 2220 83 30-105 2670 2190 82 10-110 2670 2070 78 45-110 2670 2320 87 45-110 2670 2170 81 45-110 2670 2100 79 40-105 2670 1660 62 24-120 2670 2200 82 40-115 2670 2320 87 45-115 2670 2190 82 45-105 2670 1940 73 35-123 2670 2440 92 45-110 2670 2360 88 50-110 2670 2180 82 45-105 2670 2280 86 45-120 2670 2360 88 50-110 2670 2170 81 45-105 2670 2340 88 50-110 2670 1840 69 25-110 2670 2270 85 45-110 5 4640 87 15-130 5 5210 98 15-140 2670 2300 86 50-105 2670 2390 90 50-115 TestAmerica Burlington Page 206 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33700-1 Lab Sample ID: LCS 280-327871/2-A Analysis Batch: 280-329202 SMS_D Client Matrix: Solid Leach Batch: 280-327871 D16259.D 30 g 06/09/2016 1906 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Leach Date: Analyte Spike Amount Result % Rec. Limit Qual Diethyl phthalate Fluorene 4-Chlorophenyl phenyl ether 4-Nitroaniline 4,6-Dinitro-2-methylphenol N-Nitrosodiphenylamine 4-Bromophenyl phenyl ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-n-butyl phthalate Fluoranthene Pyrene Butyl benzyl phthalate Benzo[a]anthracene Chrysene 3,3'-Dichlorobenzidine Bis(2-ethylhexyl) phthalate Di-n-octyl phthalate Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-cd]pyrene Dibenz(a,h)anthracene Benzo[g,h,i]perylene 2670 2400 90 50-115 2670 2320 87 50-110 2670 2320 87 45-110 2670 2320 87 35-115 5 4790 90 30-135 2670 2 87 50-115 2670 2410 91 45-115 2670 2370 89 45-120 5 4710 88 25-120 2670 2340 88 50-110 2670 2350 88 55-105 2670 2 87 45-115 2670 2370 89 55-110 2670 2340 88 55-115 2670 2420 91 45-125 2670 2390 90 50-125 2670 2360 88 50-110 2670 2310 87 55-110 2670 2230 84 22-120 2670 2290 86 45-125 2670 2280 85 40-130 2670 2350 88 45-115 2670 2410 90 45-125 2670 2370 89 50-110 2670 2290 86 40-120 2670 2240 84 40-125 2670 2240 84 40-125 Surrogate % Rec Acceptance Limits 2-Fluorophenol (Surr) 81 35-105 Phenol-d5 (Surr) 81 40-100 Nitrobenzene-d5 (Surr) 77 35-100 2-Fluorobiphenyl 81 45-105 2,4,6-Tribromophenol (Surr) 95 35-125 Terphenyl-d14 (Surr) 94 30-125 TestAmerica Burlington Page 207 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-1 06/09/2016 2101 06/01/2016 1042 Leach Date: Analysis Batch: Leach Batch: 280-329202 280-327871 Injection Volume: SMS_D D16263.D 30.9 g 1 ml 0.5 ul MSD Lab Sample ID: 200-33700-1 06/09/2016 2129 06/01/2016 1042 Leach Date: Analysis Batch: Leach Batch: 280-329202 280-327871 Injection Volume: SMS_D D16264.D 33.0 g 1 ml 0.5 ul Analyte N-Nitrosodimethylamine Aniline Phenol Bis(2-chloroethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzyl alcohol 1,2-Dichlorobenzene 2-Methylphenol 2,2'-oxybis[1-chloropropane] 3 & 4 Methylphenol N-Nitrosodi-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Benzoic acid Bis(2-chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Naphthalene 4-Chloroaniline Hexachlorobutadiene 4-Chloro-3-methylphenol 2-Methylnaphthalene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol 2-Chloronaphthalene 2-Nitroaniline % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 56 58 20-115 3 30 21 14 10-120 45 30 J F2 76 81 40-100 1 30 77 81 40-105 1 30 76 80 45-105 0 30 65 67 40-100 4 30 66 68 35-105 3 30 75 81 20-125 1 30 68 70 45-95 4 30 76 81 40-105 1 30 69 72 20-115 2 30 79 84 40-105 1 30 73 78 40-115 0 30 67 69 35-110 3 30 73 78 40-115 0 30 69 76 45-110 3 30 75 81 40-110 1 30 80 85 30-105 0 30 82 90 10-110 3 30 72 78 45-110 1 30 83 89 45-110 0 30 75 80 45-110 0 30 72 77 40-105 1 30 33 22 24-120 47 30 F1 F2 75 79 40-115 1 30 83 89 45-115 0 30 76 82 45-105 1 30 61 57 35-123 13 30 J J 88 96 45-110 2 30 85 91 50-110 0 30 77 84 45-105 1 30 80 85 45-120 0 30 TestAmerica Burlington Page 208 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-1 06/09/2016 2101 06/01/2016 1042 Leach Date: Analysis Batch: Leach Batch: 280-329202 280-327871 Injection Volume: SMS_D D16263.D 30.9 g 1 ml 0.5 ul MSD Lab Sample ID: 200-33700-1 06/09/2016 2129 06/01/2016 1042 Leach Date: Analysis Batch: Leach Batch: 280-329202 280-327871 Injection Volume: SMS_D D16264.D 33.0 g 1 ml 0.5 ul Analyte Dimethyl phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene Diethyl phthalate Fluorene 4-Chlorophenyl phenyl ether 4-Nitroaniline 4,6-Dinitro-2-methylphenol N-Nitrosodiphenylamine 4-Bromophenyl phenyl ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-n-butyl phthalate Fluoranthene Pyrene Butyl benzyl phthalate Benzo[a]anthracene Chrysene 3,3'-Dichlorobenzidine Bis(2-ethylhexyl) phthalate Di-n-octyl phthalate Benzo[b]fluoranthene Benzo[k]fluoranthene % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 79 85 50-110 1 30 75 81 45-105 1 30 80 86 50-110 1 30 47 37 25-110 30 30 J J 79 86 45-110 1 30 74 68 15-130 14 30 89 96 15-140 2 30 79 86 50-105 1 30 80 83 50-115 2 30 80 85 50-115 0 30 79 84 50-110 0 30 82 87 45-110 1 30 43 38 35-115 20 30 J J 76 74 30-135 9 30 83 85 50-115 4 30 81 89 45-115 3 30 82 87 45-120 1 30 86 93 25-120 1 30 79 85 50-110 0 30 78 83 55-105 0 30 74 78 45-115 2 30 85 90 55-110 1 30 75 80 55-115 0 30 84 87 45-125 3 30 82 85 50-125 2 30 77 80 50-110 3 30 77 81 55-110 2 30 0 0 22-120 NC 30 U F1 U F1 79 82 45-125 3 30 76 80 40-130 1 30 79 83 45-115 1 30 79 86 45-125 2 30 TestAmerica Burlington Page 209 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328537 Method: 8015B GRO DOD Preparation: 5035 Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328537/1-A Analysis Batch: 280-328547 VGC_Q Solid 280-328537 020F2001.D Leach Batch: 5.00 g 06/06/2016 1931 Units: mg/kg 5 ml 06/06/2016 1141 Injection Volume: 5 ml Column ID: PRIMARY Analyte Result Qual MDL RL C6-C10 1.2 U 0.33 1.2 Surrogate % Rec Acceptance Limits a,a,a-trifluorotoluene 84 77-123 Lab Control Sample/ Lab Control Sample Duplicate Recovery Report - Batch: 280-328537 Method: 8015B GRO DOD Preparation: 5035 LCS Lab Sample ID: LCS 280-328537/2-A 06/06/2016 1956 06/06/2016 1141 Leach Date: Analysis Batch: Leach Batch: Units: 280-328547 280-328537 mg/kg Injection Volume: Column ID: VGC_Q 021F2101.D 5.00 g 5 ml 5 ml PRIMARY LCSD Lab Sample ID: LCSD 280-328537/3-A 06/06/2016 2021 06/06/2016 1141 Leach Date: Analysis Batch: Leach Batch: Units: 280-328547 280-328537 mg/kg Injection Volume: Column ID: VGC_Q 022F2201.D 5.00 g 5 ml 5 ml PRIMARY Analyte LCS % Rec. LCSD Limit RPD RPD Limit LCS Qual LCSD Qual C6-C10 93 101 79-122 8 30 Surrogate LCS % Rec LCSD % Rec Acceptance Limits a,a,a-trifluorotoluene 89 96 77-123 TestAmerica Burlington Page 211 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328729 Method: 8015B GRO DOD Preparation: 5035 Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328729/1-A Analysis Batch: 280-328733 VGC_Q Solid 280-328729 012F1201.D Leach Batch: 5.00 g 06/07/2016 1626 Units: mg/kg 5 ml 06/07/2016 1139 Injection Volume: 5 ml Column ID: PRIMARY Analyte Result Qual MDL RL C6-C10 1.2 U 0.33 1.2 Surrogate % Rec Acceptance Limits a,a,a-trifluorotoluene 81 77-123 Lab Control Sample - Batch: 280-328729 Method: 8015B GRO DOD Preparation: 5035 Lab Sample ID: LCS 280-328729/2-A Analysis Batch: 280-328911 VGC_Q Client Matrix: Solid Leach Batch: 280-328729 004F0401.D 5.00 g 06/08/2016 1120 Units: mg/kg 5 ml 06/07/2016 1139 Injection Volume: 5 ml Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual C6-C10 5.50 4.53 82 79-122 Surrogate % Rec Acceptance Limits a,a,a-trifluorotoluene 77 77-123 TestAmerica Burlington Page 212 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328719 Method: 8015B_GRO Preparation: 5030B Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328719/1-A Analysis Batch: 280-328731 VGC_Q Solid 280-328719 003F0301.D Leach Batch: 10.00 g 06/07/2016 1240 Units: mg/kg 10 ml 06/07/2016 1034 Injection Volume: 5 ml Analyte Result Qual MDL RL Gasoline Range Organics (GRO)-C6-C10 1.2 U 0.33 1.2 Surrogate % Rec Acceptance Limits a,a,a-trifluorotoluene 88 77-130 Lab Control Sample - Batch: 280-328719 Method: 8015B_GRO Preparation: 5030B Lab Sample ID: LCS 280-328719/2-A Analysis Batch: 280-328731 VGC_Q Client Matrix: Solid Leach Batch: 280-328719 004F0401.D 10.00 g 06/07/2016 1305 Units: mg/kg 10 ml 06/07/2016 1034 Injection Volume: 5 ml Leach Date: Analyte Spike Amount Result % Rec. Limit Qual Gasoline Range Organics (GRO)-C6-C10 5.50 4.75 86 85-153 Surrogate % Rec Acceptance Limits a,a,a-trifluorotoluene 85 77-130 TestAmerica Burlington Page 213 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328719 Method: 8015B_GRO Preparation: 5030B Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-5 06/07/2016 1420 06/07/2016 1034 Leach Date: Analysis Batch: Leach Batch: 280-328731 280-328719 Injection Volume: VGC_Q 007F0701.D 10.20 g 10 ml 5 ml MSD Lab Sample ID: 200-33700-5 06/07/2016 1445 06/07/2016 1034 Leach Date: Analysis Batch: Leach Batch: 280-328731 280-328719 Injection Volume: VGC_Q 008F0801.D 10.24 g 10 ml 5 ml Analyte Gasoline Range Organics (GRO)-C6-C10 % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 68 72 85-153 3 30 F1 F1 Surrogate MS % Rec MSD % Rec Acceptance Limits a,a,a-trifluorotoluene 87 87 77-130 TestAmerica Burlington Page 214 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328561 Method: 8015B DRO Preparation: 3546 Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328561/1-A Analysis Batch: 280-328891 SGC_U2a Solid 280-328561 007F0601.D Leach Batch: 30 g 06/08/2016 1107 Units: mg/kg 1 ml 06/06/2016 1511 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL Diesel Range Organics [C10-C28] 0.728 J 0.68 4.0 Surrogate % Rec Acceptance Limits o-terphenyl (Surr) 92 45-130 n-octacosane 92 25-162 Lab Control Sample - Batch: 280-328561 Method: 8015B DRO Preparation: 3546 Lab Sample ID: LCS 280-328561/2-A Analysis Batch: 280-328891 SGC_U2a Client Matrix: Solid Leach Batch: 280-328561 008F0701.D 30 g 06/08/2016 1132 Units: mg/kg 1 ml 06/06/2016 1511 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual Diesel Range Organics [C10-C28] 66.7 56.9 85 38-132 Surrogate % Rec Acceptance Limits o-terphenyl (Surr) 96 45-130 n-octacosane 91 25-162 TestAmerica Burlington Page 215 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328561 Method: 8015B DRO Preparation: 3546 Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-7 06/08/2016 1718 06/06/2016 1511 Leach Date: Analysis Batch: Leach Batch: 280-328891 280-328561 Injection Volume: Column ID: SGC_U2a 022F2101.D 31.5 g 1 ml 1 ul PRIMARY MSD Lab Sample ID: 200-33700-7 06/08/2016 1743 06/06/2016 1511 Leach Date: Analysis Batch: Leach Batch: 280-328891 280-328561 Injection Volume: Column ID: SGC_U2a 023F2201.D 30.0 g 1 ml 1 ul PRIMARY Analyte Diesel Range Organics [C10-C28] % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 100 145 38-132 21 30 F1 Surrogate MS % Rec MSD % Rec Acceptance Limits o-terphenyl (Surr) 83 86 45-130 n-octacosane 171 X 111 25-162 TestAmerica Burlington Page 216 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328536/1-A Analysis Batch: 280-329199 SGC_C Solid 280-328536 06090014.D Leach Batch: 30 g 06/09/2016 2025 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone Chlordane (technical) Toxaphene 1.7 U 0.21 1.7 1.7 U 0.46 1.7 1.7 U 0.66 1.7 0.569 J 0.40 1.7 1.7 U 0.21 1.7 1.7 U 0.25 1.7 1.7 U 0.43 1.7 1.7 U 0.27 1.7 1.7 U 0.32 1.7 1.7 U 0.24 1.7 1.7 U 0.18 1.7 1.7 U 0.21 1.7 1.7 U 0.31 1.7 1.7 U 0.55 1.7 1.7 U 0.29 1.7 2.0 U 0.59 2.0 1.7 U 0.17 1.7 3.3 U 0.45 3.3 1.7 U 0.28 1.7 1.7 U 0.49 1.7 25 U 7.8 25 170 U 16 170 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 101 70-125 DCB Decachlorobiphenyl 101 55-130 TestAmerica Burlington Page 217 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33700-1 Lab Sample ID: LCS 280-328536/2-A Analysis Batch: 280-329199 SGC_C Client Matrix: Solid Leach Batch: 280-328536 06090015.D 30 g 06/09/2016 2043 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone 16.7 15.6 94 60-125 16.7 15.8 95 60-125 16.7 16.1 97 60-125 16.7 15.0 90 55-130 16.7 16.3 98 50-140 16.7 15.6 94 45-140 16.7 15.9 95 65-130 16.7 15.9 96 65-125 16.7 15.6 94 65-120 16.7 16.1 97 70-125 16.7 16.1 97 15-135 16.7 15.6 93 65-125 16.7 16.6 99 60-135 16.7 16.0 96 30-135 16.7 16.0 96 35-140 16.7 17.5 105 45-140 16.7 16.1 97 35-145 16.7 17.6 105 55-145 16.7 16.1 96 60-135 16.7 15.4 93 65-135 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 98 70-125 DCB Decachlorobiphenyl 98 55-130 Lab Control Sample - Batch: 280-328536 Method: 8081B Preparation: 3546 Lab Sample ID: LCS 280-328536/4-A Analysis Batch: 280-329199 SGC_C Client Matrix: Solid Leach Batch: 280-328536 06090016.D 30 g 06/09/2016 2100 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual Toxaphene 66.7 41.2 62 51-139 J Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 95 70-125 TestAmerica Burlington Page 218 of 258

Client: Dawson Technical, LLC Surrogate % Rec Acceptance Limits DCB Decachlorobiphenyl 95 55-130 Surrogate % Rec Acceptance Limits DCB Decachlorobiphenyl 66 55-130 Quality Control Results Job Number: 200-33700-1 TestAmerica Burlington Page 219 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-3 06/10/2016 0442 06/06/2016 1301 Leach Date: Analysis Batch: Leach Batch: 280-329199 280-328536 Injection Volume: Column ID: SGC_C 06090043.D 31.2 g 10 ml 1 ul PRIMARY MSD Lab Sample ID: 200-33700-3 06/10/2016 0459 06/06/2016 1301 Leach Date: Analysis Batch: Leach Batch: 280-329199 280-328536 Injection Volume: Column ID: SGC_C 06090044.D 32.5 g 10 ml 1 ul PRIMARY Analyte alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 61 45 60-125 34 30 F1 F2 67 49 60-125 32 30 F1 F2 68 56 60-125 21 30 F1 67 51 55-130 29 30 F1 73 57 50-140 29 30 67 52 45-140 29 30 72 55 65-130 30 30 F1 71 53 65-125 32 30 F1 F2 69 53 65-120 29 30 F1 72 51 70-125 30 30 F1 59 45 15-135 30 30 83 57 65-125 41 30 F1 F2 78 57 60-135 35 30 F1 F2 66 49 30-135 34 30 F2 73 52 35-140 37 30 F2 93 68 45-140 118 30 F2 57 38 35-145 42 30 F2 71 52 55-145 34 30 F1 F2 66 49 60-135 34 30 F1 F2 67 47 65-135 34 30 F1 F2 Surrogate MS % Rec MSD % Rec Acceptance Limits Tetrachloro-m-xylene 70 56 X 70-125 DCB Decachlorobiphenyl 66 55 55-130 TestAmerica Burlington Page 220 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328536 Method: 8082A Preparation: 3546 Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328536/1-A Analysis Batch: 280-328868 SGC_W Solid 280-328536 06081604.D Leach Batch: 30 g 06/08/2016 1024 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL PCB-1016 PCB-1221 PCB-1232 PCB-1242 PCB-1248 PCB-1254 PCB-1260 PCB-1262 PCB-1268 33 U 5.1 33 47 U 16 47 33 U 5.1 33 33 U 9.1 33 33 U 5.6 33 33 U 5.5 33 33 U 2.7 33 33 U 12 33 33 U 4.0 33 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 98 44-130 DCB Decachlorobiphenyl 89 60-125 Lab Control Sample - Batch: 280-328536 Method: 8082A Preparation: 3546 Lab Sample ID: LCS 280-328536/3-A Analysis Batch: 280-328868 SGC_W Client Matrix: Solid Leach Batch: 280-328536 06081605.D 30 g 06/08/2016 1047 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual PCB-1016 PCB-1260 66.7 78.9 118 40-140 66.7 76.2 114 60-130 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 99 44-130 DCB Decachlorobiphenyl 105 60-125 TestAmerica Burlington Page 222 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328536 Method: 8082A Preparation: 3546 Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-4 06/08/2016 1302 06/06/2016 1301 Leach Date: Analysis Batch: Leach Batch: 280-328868 280-328536 Injection Volume: Column ID: SGC_W 06081610.D 32.2 g 10 ml 1 ul PRIMARY MSD Lab Sample ID: 200-33700-4 06/08/2016 1326 06/06/2016 1301 Leach Date: Analysis Batch: Leach Batch: 280-328868 280-328536 Injection Volume: Column ID: SGC_W 06081611.D 31.1 g 10 ml 1 ul PRIMARY Analyte PCB-1016 PCB-1260 % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 122 118 40-140 0 30 323 126 60-130 85 30 F1 F2 Surrogate MS % Rec MSD % Rec Acceptance Limits Tetrachloro-m-xylene 92 87 44-130 DCB Decachlorobiphenyl 95 90 60-125 TestAmerica Burlington Page 223 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328790 Method: 8151A Preparation: 8151A Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328790/1-A Analysis Batch: 280-329641 SGC_M Solid 280-328790 06140011.D Leach Batch: 50 g 06/14/2016 1227 Units: ug/kg 10 ml 06/07/2016 2300 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) 80 U 14 80 40 U 1.4 40 80 U 7.5 80 40 U 1.4 40 80 U 3.2 80 8000 U 2000 8000 8000 U 2000 8000 20 U 2.3 20 20 U 1.4 20 Surrogate % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 63 27-122 Lab Control Sample - Batch: 280-328790 Method: 8151A Preparation: 8151A Lab Sample ID: LCS 280-328790/2-A Analysis Batch: 280-329641 SGC_M Client Matrix: Solid Leach Batch: 280-328790 06140012.D 50 g 06/14/2016 1250 Units: ug/kg 10 ml 06/07/2016 2300 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) 100 63.7 64 35-145 J 100 59.8 60 35-105 100 74.8 75 50-155 J 100 62.0 62 55-110 100 61.8 62 75-140 J * 10000 5260 53 28-135 J 10000 7620 76 35-143 J 100 67.1 67 45-135 100 64.1 64 45-125 Surrogate % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 66 27-122 TestAmerica Burlington Page 224 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328860 Method: 8151A Preparation: 8151A Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-328860/1-A Analysis Batch: 280-329443 SGC_M Solid 280-328860 06110022.D Leach Batch: 50 g 06/12/2016 0016 Units: ug/kg 10 ml 06/08/2016 1316 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) 80 U 14 80 40 U 1.4 40 80 U 7.5 80 40 U 1.4 40 80 U 3.2 80 8000 U 2000 8000 8000 U 2000 8000 20 U 2.3 20 20 U 1.4 20 Surrogate % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 78 27-122 Lab Control Sample - Batch: 280-328860 Method: 8151A Preparation: 8151A Lab Sample ID: LCS 280-328860/2-A Analysis Batch: 280-329443 SGC_M Client Matrix: Solid Leach Batch: 280-328860 06110023.D 50 g 06/12/2016 0039 Units: ug/kg 10 ml 06/08/2016 1316 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) 100 71.7 72 35-145 J 100 74.6 75 35-105 100 73.2 73 50-155 J 100 76.6 77 55-110 100 74.3 74 75-140 J * 10000 6060 61 28-135 J 10000 8580 86 35-143 100 74.5 74 45-135 100 75.7 76 45-125 Surrogate % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 78 27-122 TestAmerica Burlington Page 225 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328860 Method: 8151A Preparation: 8151A Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-6 10 06/12/2016 0233 06/08/2016 1316 Leach Date: Analysis Batch: Leach Batch: 280-329443 280-328860 Injection Volume: Column ID: SGC_M 06110028.D 50.2 g 10 ml 1 ul PRIMARY MSD Lab Sample ID: 200-33700-6 10 06/12/2016 0256 06/08/2016 1316 Leach Date: Analysis Batch: Leach Batch: 280-329443 280-328860 Injection Volume: Column ID: SGC_M 06110029.D 51.3 g 10 ml 1 ul PRIMARY Analyte 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual NC NC 35-145 NC 30 U D U D 66 62 35-105 9 30 J D J D 107 0 50-155 NC 30 J D U F1 D 72 72 55-110 3 30 J D J D 54 56 75-140 1 30 J F1 D J F1 D NC NC 28-135 NC 30 U D U D NC NC 35-143 NC 30 U D U D 112 92 45-135 22 30 J D J D 64 58 45-125 12 30 J D J D Surrogate MS % Rec MSD % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 72 D 71 D 27-122 TestAmerica Burlington Page 226 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 200-105051 Method: 8B Preparation: 8 Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 200-105051/1-A Analysis Batch: 200-105737 CH1208 Solid 200-105051 20423004.D Leach Batch: 10.01 g 06/15/2016 1248 Units: ug/kg 100 ml 06/07/2016 1640 Injection Volume: 150 ul Column ID: PRIMARY Analyte Result Qual MDL RL 2,6-diamino-4-nitrotoluene HMX 2,4-diamino-6-nitrotoluene RDX Picric acid 1,3,5-Trinitrobenzene 1,3-Dinitrobenzene Nitrobenzene Tetryl Nitroglycerin 2,4,6-Trinitrotoluene 4-Amino-2,6-dinitrotoluene 2-Amino-4,6-dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrotoluene 2-Nitrotoluene 4-Nitrotoluene 3-Nitrotoluene PETN 99.9 U 25.0 99.9 99.9 U 7.69 99.9 99.9 U 25.0 99.9 99.9 U 17.0 99.9 99.9 U 1 99.9 99.9 U 25.0 99.9 99.9 U 12.0 99.9 99.9 U 15.0 99.9 99.9 U 30.0 99.9 2000 U 569 2000 99.9 U 15.0 99.9 99.9 U 16.0 99.9 99.9 U 14.0 99.9 99.9 U 15.0 99.9 99.9 U 30.0 99.9 99.9 U 24.0 99.9 99.9 U 44.0 99.9 99.9 U 42.0 99.9 5000 U 1500 5000 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 98 55-145 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 105 55-145 TestAmerica Burlington Page 227 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 200-105051 Method: 8B Preparation: 8 Job Number: 200-33700-1 Lab Sample ID: LCS 200-105051/2-A Analysis Batch: 200-105737 CH1208 Client Matrix: Solid Leach Batch: 200-105051 20423005.D 9.99 g 06/15/2016 1325 Units: ug/kg 100 ml 06/07/2016 1640 Injection Volume: 150 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual 2,6-diamino-4-nitrotoluene HMX 2,4-diamino-6-nitrotoluene RDX Picric acid 1,3,5-Trinitrobenzene 1,3-Dinitrobenzene Nitrobenzene Tetryl Nitroglycerin 2,4,6-Trinitrotoluene 4-Amino-2,6-dinitrotoluene 2-Amino-4,6-dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrotoluene 2-Nitrotoluene 4-Nitrotoluene 3-Nitrotoluene PETN 2000 1961 98 30-180 2000 1954 98 80-125 2000 1975 99 20-180 2000 1985 99 80-125 2000 2120 106 80-135 2000 1949 97 80-120 2000 1999 100 80-120 2000 1893 95 80-120 2000 1961 98 25-165 p 40000 37900 95 80-125 2000 1953 98 80-120 2000 1971 98 80-120 2000 1903 95 80-130 2000 1950 97 80-120 2000 2081 104 50-160 p 2000 1951 97 70-125 2000 1923 96 25-185 p 2000 1922 96 40-165 p 40000 35980 90 80-125 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 104 55-145 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 105 55-145 TestAmerica Burlington Page 228 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 200-105051 Method: 8B Preparation: 8 Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-4 06/15/2016 2247 06/07/2016 1640 Leach Date: Analysis Batch: Leach Batch: 200-105737 200-105051 Injection Volume: Column ID: CH1208 20423020.D 9.97 g 100 ml 150 ul PRIMARY MSD Lab Sample ID: 200-33700-4 06/15/2016 2324 06/07/2016 1640 Leach Date: Analysis Batch: Leach Batch: 200-105737 200-105051 Injection Volume: Column ID: CH1208 20423021.D 10.00 g 100 ml 150 ul PRIMARY Analyte 2,6-diamino-4-nitrotoluene HMX 2,4-diamino-6-nitrotoluene RDX Picric acid 1,3,5-Trinitrobenzene 1,3-Dinitrobenzene Nitrobenzene Tetryl Nitroglycerin 2,4,6-Trinitrotoluene 4-Amino-2,6-dinitrotoluene 2-Amino-4,6-dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrotoluene 2-Nitrotoluene 4-Nitrotoluene 3-Nitrotoluene PETN % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 27 28 30-180 2 20 F1 F1 97 98 80-125 0 20 10 10 20-180 4 20 F1 F1 96 96 80-125 0 20 12 11 80-135 4 20 F1 F1 94 95 80-120 1 20 101 102 80-120 1 20 93 94 80-120 0 20 94 96 25-165 2 20 p p 95 98 80-125 2 20 96 97 80-120 0 20 96 97 80-120 1 20 93 94 80-130 1 20 98 100 80-120 1 20 106 108 50-160 2 20 p p 95 96 70-125 1 20 90 91 25-185 0 20 p p 92 93 40-165 0 20 p p 70 71 80-125 0 20 F1 F1 Surrogate MS % Rec MSD % Rec Acceptance Limits 1,2-Dinitrobenzene 101 101 55-145 Surrogate MS % Rec MSD % Rec Acceptance Limits 1,2-Dinitrobenzene 109 106 55-145 TestAmerica Burlington Page 229 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 200-105598 Method: 6850 Preparation: Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 200-105469/1-A Solid 06/10/2016 1301 06/08/2016 1033 Analysis Batch: Leach Batch: Units: 200-105598 200-105469 ug/kg Injection Volume: LC3062 P061016A03.d 10 ml 50 ul Analyte Result Qual MDL RL Perchlorate 0.79 U 0.058 0.79 Lab Control Sample - Batch: 200-105598 Method: 6850 Preparation: Lab Sample ID: LCS 200-105469/2-A Analysis Batch: 200-105598 LC3062 Client Matrix: Solid Leach Batch: 200-105469 P061016A04.d 10 ml 06/10/2016 1316 Units: ug/kg Injection Volume: 50 ul Leach Date: 06/08/2016 1033 Analyte Spike Amount Result % Rec. Limit Qual Perchlorate 0.793 0.908 115 80-120 TestAmerica Burlington Page 230 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327633 Method: 6010C Preparation: 3050B Job Number: 200-33700-1 Lab Sample ID: MB 280-327633/1-A 06/02/2016 0024 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328052 280-327633 mg/kg MT_026 26C060116.asc 1 g 100 ml Analyte Result Qual MDL RL Arsenic Barium Cadmium Chromium Lead Copper Zinc 2.5 U 0.66 2.5 0.131 J 0.076 2.0 0.50 U 0.041 0.50 0.0600 J 0.058 3.5 0.90 U 0.27 0.90 5.0 U 0.22 5.0 8.0 U 0.40 8.0 Method Blank - Batch: 280-327633 Method: 6010C Preparation: 3050B Lab Sample ID: MB 280-327633/1-A 06/02/2016 1614 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328232 280-327633 mg/kg MT_026 26A060216.asc 1 g 100 ml Analyte Result Qual MDL RL Selenium Silver 3.0 U 0.86 3.0 1.5 U 0.16 1.5 TestAmerica Burlington Page 231 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327633 Method: 6010C Preparation: 3050B Job Number: 200-33700-1 Lab Sample ID: LCS 280-327633/2-A Client Matrix: Solid 06/02/2016 0027 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328052 280-327633 mg/kg MT_026 26C060116.asc 1 g 100 ml Analyte Spike Amount Result % Rec. Limit Qual Arsenic Barium Cadmium Chromium Lead Copper Zinc 100 100.7 101 80-120 200 199.4 100 80-120 10.0 10.28 103 80-120 20.0 20.48 102 80-120 50.0 49.55 99 80-120 25.0 24.15 97 80-120 50.0 46.00 92 80-120 Lab Control Sample - Batch: 280-327633 Method: 6010C Preparation: 3050B Lab Sample ID: LCS 280-327633/2-A Client Matrix: Solid 06/02/2016 1617 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328232 280-327633 mg/kg MT_026 26A060216.asc 1 g 100 ml Analyte Spike Amount Result % Rec. Limit Qual Selenium Silver 200 196.9 98 80-120 5.00 4.90 98 75-120 TestAmerica Burlington Page 232 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-327633 Method: 6010C Preparation: 3050B Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-1 06/02/2016 0035 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: 280-328052 280-327633 MT_026 26C060116.asc 1.216 g 100 ml MSD Lab Sample ID: 200-33700-1 06/02/2016 0037 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: 280-328052 280-327633 MT_026 26C060116.asc 1.155 g 100 ml Analyte Arsenic Barium Cadmium Chromium Lead Copper Zinc % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 93 94 80-120 6 20 99 98 80-120 3 20 97 98 80-120 5 20 106 107 80-120 4 20 90 90 80-120 4 20 95 83 80-120 4 20 99 118 80-120 14 20 Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-327633 Method: 6010C Preparation: 3050B MS Lab Sample ID: 200-33700-1 06/02/2016 1625 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: 280-328232 280-327633 MT_026 26A060216.asc 1.216 g 100 ml MSD Lab Sample ID: 200-33700-1 06/02/2016 1628 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: 280-328232 280-327633 MT_026 26A060216.asc 1.155 g 100 ml Analyte Selenium Silver % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 91 92 80-120 6 20 115 87 75-120 20 20 TestAmerica Burlington Page 233 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327680 Method: 7471B Preparation: 7471B Job Number: 200-33700-1 Lab Sample ID: MB 280-327680/1-A 05/31/2016 1738 05/31/2016 1220 Leach Date: Analysis Batch: Leach Batch: Units: 280-327855 280-327680 ug/kg MT_034 160531ba.txt 0.6 g 50 ml Analyte Result Qual MDL RL Hg 17.0 U 5.5 17.0 Lab Control Sample - Batch: 280-327680 Method: 7471B Preparation: 7471B Lab Sample ID: LCS 280-327680/2-A Client Matrix: Solid 05/31/2016 1740 05/31/2016 1220 Leach Date: Analysis Batch: Leach Batch: Units: 280-327855 280-327680 ug/kg MT_034 160531ba.txt 0.6 g 50 ml Analyte Spike Amount Result % Rec. Limit Qual Hg 417 409.5 98 80-120 Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-327680 Method: 7471B Preparation: 7471B MS Lab Sample ID: 200-33700-1 05/31/2016 1753 05/31/2016 1220 Leach Date: Analysis Batch: Leach Batch: 280-327855 280-327680 MT_034 160531ba.txt 0.51 g 50 ml MSD Lab Sample ID: 200-33700-1 05/31/2016 1755 05/31/2016 1220 Leach Date: Analysis Batch: Leach Batch: 280-327855 280-327680 MT_034 160531ba.txt 0.59 g 50 ml Analyte Hg % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 99 98 80-120 15 20 TestAmerica Burlington Page 234 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 680-437160 Method: 1030 Preparation: Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 680-437160/1 Solid 06/13/2016 1423 Analysis Batch: Leach Batch: Units: 680-437160 mm/sec No Equipment Assigned 100 g Analyte Result Qual MDL RL Ignitability nb Lab Control Sample/ Lab Control Sample Duplicate Recovery Report - Batch: 680-437160 Method: 1030 Preparation: LCS Lab Sample ID: LCS 680-437160/2 06/13/2016 1423 Leach Date: Analysis Batch: Leach Batch: Units: 680-437160 mm/sec No Equipment Assigned 100 g LCSD Lab Sample ID: LCSD 680-437160/23 06/13/2016 1730 Leach Date: Analysis Batch: Leach Batch: Units: 680-437160 mm/sec No Equipment Assigned 100 g Analyte LCS % Rec. LCSD Limit RPD RPD Limit LCS Qual LCSD Qual Ignitability 100 100 75-125 3 TestAmerica Burlington Page 235 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328663 Method: 9012B Preparation: 9012B Job Number: 200-33700-1 Lab Sample ID: MB 280-328663/4-A 06/07/2016 1257 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Result Qual MDL RL Cyanide, Total 0.50 U 0.10 0.50 TestAmerica Burlington Page 236 of 258

Quality Control Results Client: Dawson Technical, LLC High Level Control Sample - Batch: 280-328663 Method: 9012B Preparation: 9012B Job Number: 200-33700-1 Lab Sample ID: HLCS 280-328663/1-A Client Matrix: Solid 2.0 06/07/2016 1252 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 20.0 20.91 105 90-110 Low Level Control Sample - Batch: 280-328663 Method: 9012B Preparation: 9012B Lab Sample ID: LLCS 280-328663/2-A Client Matrix: Solid 06/07/2016 1253 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 5.00 5.40 108 51-150 Lab Control Sample - Batch: 280-328663 Method: 9012B Preparation: 9012B Lab Sample ID: LCS 280-328663/3-A Client Matrix: Solid 06/07/2016 1340 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 5.00 5.48 110 76-120 TestAmerica Burlington Page 237 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328663 Method: 9012B Preparation: 9012B Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-1 06/07/2016 1258 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: 280-328764 280-328663 WC_Alp 1 C:\FLOW_4\C060716.RS 405 ml 50 ml MSD Lab Sample ID: 200-33700-1 06/07/2016 1301 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: 280-328764 280-328663 WC_Alp 1 C:\FLOW_4\C060716.RS 437 ml 50 ml Analyte Cyanide, Total % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 19 19 76-120 1 10 F1 F1 TestAmerica Burlington Page 238 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328900 Method: 9012B Preparation: 9012B Job Number: 200-33700-1 Lab Sample ID: MB 280-328900/4-A 06/08/2016 1255 06/08/2016 1005 Leach Date: Analysis Batch: Leach Batch: Units: 280-329095 280-328900 mg/kg WC_Alp 1 C:\FLOW_4\C060816.RS 1 g 50 ml Analyte Result Qual MDL RL Cyanide, Total 0.50 U 0.10 0.50 TestAmerica Burlington Page 239 of 258

Quality Control Results Client: Dawson Technical, LLC High Level Control Sample - Batch: 280-328900 Method: 9012B Preparation: 9012B Job Number: 200-33700-1 Lab Sample ID: HLCS 280-328900/1-A Client Matrix: Solid 2.0 06/08/2016 1251 06/08/2016 1005 Leach Date: Analysis Batch: Leach Batch: Units: 280-329095 280-328900 mg/kg WC_Alp 1 C:\FLOW_4\C060816.RS 1 g 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 20.0 21.80 109 90-110 Low Level Control Sample - Batch: 280-328900 Method: 9012B Preparation: 9012B Lab Sample ID: LLCS 280-328900/2-A Client Matrix: Solid 06/08/2016 1252 06/08/2016 1005 Leach Date: Analysis Batch: Leach Batch: Units: 280-329095 280-328900 mg/kg WC_Alp 1 C:\FLOW_4\C060816.RS 1 g 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 5.00 5.49 110 51-150 Lab Control Sample - Batch: 280-328900 Method: 9012B Preparation: 9012B Lab Sample ID: LCS 280-328900/3-A Client Matrix: Solid 06/08/2016 1254 06/08/2016 1005 Leach Date: Analysis Batch: Leach Batch: Units: 280-329095 280-328900 mg/kg WC_Alp 1 C:\FLOW_4\C060816.RS 1 g 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 5.00 5.23 105 76-120 TestAmerica Burlington Page 240 of 258

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328900 Method: 9012B Preparation: 9012B Job Number: 200-33700-1 MS Lab Sample ID: 200-33700-4 06/08/2016 1307 06/08/2016 1005 Leach Date: Analysis Batch: Leach Batch: 280-329095 280-328900 WC_Alp 1 C:\FLOW_4\C060816.RS 251 g 50 ml MSD Lab Sample ID: 200-33700-4 06/08/2016 1309 06/08/2016 1005 Leach Date: Analysis Batch: Leach Batch: 280-329095 280-328900 WC_Alp 1 C:\FLOW_4\C060816.RS 536 g 50 ml Analyte Cyanide, Total % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 112 101 76-120 12 10 F2 TestAmerica Burlington Page 241 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327935 Method: 9034 Preparation: 9030B Job Number: 200-33700-1 Lab Sample ID: MB 280-327935/2-A 06/01/2016 1457 06/01/2016 1143 Leach Date: Analysis Batch: Leach Batch: Units: 280-327982 280-327935 mg/kg No Equipment Assigned 50.04 g 250 ml Analyte Result Qual MDL RL Sulfide 5.0 U 2.4 5.0 Lab Control Sample - Batch: 280-327935 Method: 9034 Preparation: 9030B Lab Sample ID: LCS 280-327935/1-A Client Matrix: Solid 06/01/2016 1457 06/01/2016 1143 Leach Date: Analysis Batch: Leach Batch: Units: 280-327982 280-327935 mg/kg No Equipment Assigned 50.08 g 250 ml Analyte Spike Amount Result % Rec. Limit Qual Sulfide 87.5 78.27 89 38-104 Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-327935 Method: 9034 Preparation: 9030B MS Lab Sample ID: 200-33700-1 06/01/2016 1457 06/01/2016 1143 Leach Date: Analysis Batch: Leach Batch: 280-327982 280-327935 No Equipment Assigned 25.31 g 250 ml MSD Lab Sample ID: 200-33700-1 06/01/2016 1457 06/01/2016 1143 Leach Date: Analysis Batch: Leach Batch: 280-327982 280-327935 No Equipment Assigned 25.11 g 250 ml Analyte Sulfide % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 49 53 38-104 8 35 TestAmerica Burlington Page 242 of 258

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327788 Method: 9045D Preparation: Job Number: 200-33700-1 Lab Sample ID: LCS 280-327740/1-A Client Matrix: Solid 05/31/2016 1624 Leach Date: 05/31/2016 1203 Analysis Batch: Leach Batch: Units: 280-327788 280-327740 SU No Equipment Assigned 1 ml 1 ml Analyte Spike Amount Result % Rec. Limit Qual ph adj. to 25 deg C-Soluble 7.00 7.090 101 97-103 Duplicate - Batch: 280-327788 Method: 9045D Preparation: Lab Sample ID: 200-33700-1 05/31/2016 1624 Leach Date: 05/31/2016 1203 Analysis Batch: Leach Batch: Units: 280-327788 280-327740 Degrees C No Equipment Assigned 1 ml 1 ml Analyte Sample Result/Qual Result RPD Limit Qual Temperature-Soluble 22.4 22.00 2 5 Duplicate - Batch: 280-327788 Method: 9045D Preparation: Lab Sample ID: 200-33700-1 05/31/2016 1624 Leach Date: 05/31/2016 1203 Analysis Batch: Leach Batch: Units: 280-327788 280-327740 SU No Equipment Assigned 1 ml 1 ml Analyte Sample Result/Qual Result RPD Limit Qual ph adj. to 25 deg C-Soluble 4.73 4.750 0.4 5 TestAmerica Burlington Page 243 of 258

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-305 Method: SM 2510B Preparation: Job Number: 200-33700-1 Lab Sample ID: Client Matrix: Leach Date: MB 280-467/4-A Solid 06/17/2016 2051 06/17/2016 1821 Analysis Batch: Leach Batch: Units: 280-305 280-467 umhos/cm No Equipment Assigned 25 ml Analyte Result Qual MDL RL Specific Conductance-Soluble 2.00 U 2.00 2.00 Lab Control Sample - Batch: 280-305 Method: SM 2510B Preparation: Lab Sample ID: LCS 280-467/3-A Client Matrix: Solid 06/17/2016 2051 Leach Date: 06/17/2016 1821 Analysis Batch: Leach Batch: Units: 280-305 280-467 umhos/cm No Equipment Assigned 25 ml Analyte Spike Amount Result % Rec. Limit Qual Specific Conductance-Soluble 1410 1408 100 90-110 Duplicate - Batch: 280-305 Method: SM 2510B Preparation: Lab Sample ID: 200-33700-5 06/17/2016 2051 Leach Date: 06/17/2016 1823 Analysis Batch: Leach Batch: Units: 280-305 280-467 umhos/cm No Equipment Assigned 25 ml Analyte Sample Result/Qual Result RPD Limit Qual Specific Conductance-Soluble 8.69 7.340 17 20 TestAmerica Burlington Page 244 of 258

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Login Sample Receipt Checklist Client: Dawson Technical, LLC Job Number: 200-33700-1 SDG Number: 33700 Login Number: 33700 List Number: 1 Creator: Lavigne III, Scott M List Source: TestAmerica Burlington Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey True Lab does not accept radioactive samples. meter. The cooler's custody seal, if present, is intact. True 698297 Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True 1.1ºC, 2.9ºC COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. Sample Preservation Verified. True There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. TestAmerica Burlington Page 256 of 258

Login Sample Receipt Checklist Client: Dawson Technical, LLC Job Number: 200-33700-1 SDG Number: 33700 Login Number: 33700 List Number: 2 Creator: Pottruff, Reed W List Source: TestAmerica Denver List Creation: 05/27/16 04:56 PM Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <6mm (1/4"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. True True True True True True True True True False the container count's are not right. True True True True True True True True True True TestAmerica Burlington Page 257 of 258

Login Sample Receipt Checklist Client: Dawson Technical, LLC Job Number: 200-33700-1 SDG Number: 33700 Login Number: 33700 List Number: 3 Creator: Jennings, Carly F List Source: TestAmerica Savannah List Creation: 06/02/16 04:50 PM Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <6mm (1/4"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. True True True True True True True True True True True True True True True True True True True TestAmerica Burlington Page 258 of 258

ANALYTICAL REPORT Job Number: 200-33702-1 SDG Number: 33702 Job Description: Joint Base Cape Cod For: Dawson Technical, LLC 900 Fort Street Mall Suite 1700 Honolulu, HI 96813 Attention: Troy Hile James W Madison, Senior Project Manager 30 Community Drive, South Burlington, VT, 05403 (802)660-1990 jim.madison@testamericainc.com 06/22/2016 Approved for release. James W Madison Senior Project Manager 6/22/2016 1:45 PM The test results in this report relate only to sample(s) as received by the laboratory. These test results were derived under a quality system that adheres to the requirements of NELAC. Pursuant to NELAC, this report may not be produced in full without written approval from the laboratory TestAmerica Laboratories, Inc. TestAmerica Burlington 30 Community Drive, Suite 11, South Burlington, VT 05403 Tel (802) 660-1990 Fax (802) 660-1919 www.testamericainc.com Page 1 of 123

CASE NARRATIVE Client: Dawson Technical, LLC Project: Joint Base Cape Cod Report Number: 200-33702-1 With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples, the reporting limits are adjusted relative to the dilution required. Calculations are performed before rounding to avoid round-off errors in calculated results. All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the individual sections below. RECEIPT The samples were received on 05/26/2016; the samples arrived in good condition, properly preserved and on ice. The temperature of the coolers at receipt was C. SEMIVOLATILE ORGANIC COMPOUNDS (GC-MS) Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for semivolatile organic compounds (GC-MS) in accordance with EPA SW-846 Method 8270C. The samples were prepared on 06/01/2016 and analyzed on 06/10/2016. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. DIESEL RANGE ORGANICS Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for diesel range organics in accordance with 8015B_DRO. The samples were prepared on 06/06/2016 and analyzed on 06/08/2016. Diesel Range Organics [C10-C28] was detected in method blank MB 280-328561/1-A at a level that was above the method detection limit but below the reporting limit. The value should be considered an estimate, and has been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. GASOLINE RANGE ORGANICS (GRO) Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for gasoline range organics (GRO) in accordance with 8015D GRO. The samples were prepared on 05/25/2016 and analyzed on 06/07/2016. The Gasoline Range Organics (GRO) concentration reported for sample U_WC_052516_02 is due to the presence of discrete peaks rather than a GRO pattern. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PESTICIDES Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for Pesticides in accordance with 8081B. The samples were prepared on 06/06/2016 and analyzed on 06/10/2016 and 06/11/2016. delta-bhc was detected in method blank MB 280-328536/1-A at a level that was above the method detection limit but below the reporting limit. The value should be considered an estimate, and has been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. The analyses of the samples in this delivery group yielded the presence of numerous non-target peaks and significant baseline rises that could be interfering with the identification and quantitation of target analytes. This inference could cause false positive and/or negative results. The original analyses of the samples in this delivery group were follwed with a calibration Verification standard that was outside control criteria for 4,4-DDD, 4,4-DDT and Methoxychlor due to suspected matrix affect from the samples. The laboratory re-analyzed these Page 2 of 123

samples at dilutions to minimize the matrix effect, resulting in a acceptable calibration verification standard. 4,4-DDD, 4,4-DDT and Methoxychlor are reported from the dilution analyses. Surrogate recoveries were impacted in the dilution analyses. Several samples yielded low recovery of one of the two surrogates and acceptable recovery of the other surrogate. Note that there is an in house variance that allows for the recovery limits to be 55-125% for tetrachloro-m-xylene. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PCB AROCLORS Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for PCB Aroclors in accordance with 8082A. The samples were prepared on 06/06/2016 and analyzed on 06/08/2016. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. ORGANOCHLORINE HERBICIDES Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for organochlorine herbicides in accordance with EPA SW-846 Method 8151A. The samples were prepared on 06/07/2016 and analyzed on 06/14/2016. The blank spike sample yielded acceptable recoveries with the exception of marginally low recovery of dichlorprop. The TestAmerica Denver DoD QSM Variance requests include a widening of %R for Dichlorprop in soils from 75-140%R (DoD) to 37-115%R. Dichlorprop has been identified as a poor performing analyte when analyzed using this method and the LCS recovered within the widened windows; therefore, re-extraction/re-analysis was not performed. The results have been reported and qualified. The orginal analyses of the samples in this delivery group clogged the syringe on the instrument. These samples were re-analyzed at dilutions yielding acceptable results. The reporting limits have been adjusted accordingly. Sample U_WC_052516_01 was extracted with approximately half the routine sample mass due to the limited amount of sample available. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. EXPLOSIVES Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for explosives in accordance with EPA SW-846 Method 8B. The samples were prepared on 06/07/2016 and analyzed on 06/15/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PERCHLORATE Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for perchlorate in accordance with EPA SW-846 6850. The samples were leached on 06/08/2016 and analyzed on 06/10/2016. The perchlorate analyses of the samples in this delivery gruop were prepared using pre-dried sample. The analytical results are inherently on a dry weight basis. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. METALS (ICP) Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for Metals (ICP) in accordance with 6010C. The samples were prepared on 06/01/2016 and analyzed on 06/02/2016 and 06/03/2016. Barium and Chromium were detected in method blank MB 280-327633/1-A at levels that were above the method detection limit but below the reporting limit. The values should be considered estimates, and have been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. MERCURY Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for mercury in accordance with 7471B. The samples were prepared and analyzed on 05/31/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. IGNITABILITY FOR SOLIDS Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for ignitability for solids in accordance with EPA SW-846 Method 1030. The samples were analyzed on 06/13/2016. The samples in this delivery gruop did not ignite; therefore, an ignitability value could not be obtained. The results have been reported as "No Burn" (NB). No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Page 3 of 123

SPECIFIC CONDUCTIVITY Samples U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for specific conductivity in accordance with SM20 2510B. The samples were leached on 06/17/2016 and analyzed on 06/17/2016. It was not possible to analyze sample U_WC_052516_01 for conductivity, as the lab had consumed all of the available sample mass before the request to analyze for conductivity was made. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. CYANIDE Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for cyanide in accordance with 9012B. The samples were prepared and analyzed on 06/07/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. TOTAL SULFIDE Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for total sulfide in accordance with EPA SW-846 Method 9034. The samples were prepared and analyzed on 06/01/2016. The sulfide analyses of the samples in this delivery group were diluted due to the nature of the sample matrix No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PH (CORROSIVITY) Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for ph (corrosivity) in accordance with EPA SW-846 Method 9045D. The samples were leached on 05/31/2016 and 06/06/2016 and analyzed on 05/31/2016 and 06/06/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. PERCENT SOLIDS Samples U_WC_052516_01, U_WC_052516_02, U_WC_052516_03 and U_WC_052516_04 were analyzed for percent solids in accordance with EPA Moisture. The samples were analyzed on 05/28/2016. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Page 4 of 123

METHOD SUMMARY Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Description Matrix: Solid Lab Location Method Preparation Method Nitroaromatics and Nitramines (HPLC) TAL BUR SW846 8B Soil Extraction Procedure TAL BUR SW846 8 Perchlorate by LC/MS or LC/MS/MS TAL BUR EPA 6850 Deionized Water Leaching Procedure TAL BUR ASTM DI Leach Semivolatile Organic Compounds (GC/MS) TAL DEN SW846 8270C Ultrasonic Extraction TAL DEN SW846 3550C Gasoline Range Organics - (GC) TAL DEN SW846 8015B GRO DOD Closed System Purge and Trap TAL DEN SW846 5035 Diesel Range Organics (DRO) (GC) TAL DEN SW846 8015B DRO Microwave Extraction TAL DEN SW846 3546 Organochlorine Pesticides (GC) TAL DEN SW846 8081B Microwave Extraction TAL DEN SW846 3546 Polychlorinated Biphenyls (PCBs) by Gas Chromatography TAL DEN SW846 8082A Microwave Extraction TAL DEN SW846 3546 Herbicides (GC) TAL DEN SW846 8151A Extraction (Herbicides) TAL DEN SW846 8151A Metals (ICP) TAL DEN SW846 6010C Preparation, Metals TAL DEN SW846 3050B Mercury (CVAA) TAL DEN SW846 7471B Preparation, Mercury TAL DEN SW846 7471B Cyanide, Total and/or Amenable TAL DEN SW846 9012B Cyanide, Total and/or Amenable, Distillation TAL DEN SW846 9012B Sulfide, Acid Soluble and Insoluble (Titrimetric) TAL DEN SW846 9034 Sulfide, Distillation (Acid Soluble and Insoluble) TAL DEN SW846 9030B ph TAL DEN SW846 9045D Deionized Water Leaching Procedure TAL DEN ASTM DI Leach Percent Moisture TAL DEN EPA Moisture Conductivity, Specific Conductance TAL DEN SM SM 2510B Deionized Water Leaching Procedure TAL DEN ASTM DI Leach Ignitability, Solids TAL SAV SW846 1030 Lab References: TAL BUR = TestAmerica Burlington TAL DEN = TestAmerica Denver TAL SAV = TestAmerica Savannah TestAmerica Burlington Page 5 of 123

METHOD SUMMARY Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Description Method References: Lab Location Method Preparation Method ASTM = ASTM International EPA = US Environmental Protection Agency SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. TestAmerica Burlington Page 6 of 123

METHOD / ANALYST SUMMARY Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Method Analyst Analyst ID SW846 8270C SW846 8015B GRO DOD SW846 8015B DRO SW846 8081B SW846 8082A SW846 8151A SW846 6010C SW846 7471B EPA 6850 SW846 1030 SW846 9012B SW846 9034 SW846 9045D SW846 9045D EPA Moisture SM SM 2510B SW846 8B Kiekel, Daniel C Redman, Erin E Moore, Tegan E Wells, David A Jackson, Todd D Wells, David A Kelly, Cara M Henning, Christopher D Drumm, Erik L Wynn, Jamall J Lehman, Jeffrey M Lawrence, Caitlyn M Derosia, Marcia R Uge, Ikem E Martinez, Rut S Martinez, Rut S Chirgwin, Bradley W DCK EER TEM DAW TDJ DAW CMK CDH ELD JJW JML CML MRD IEU RSM RSM BWC TestAmerica Burlington Page 7 of 123

SAMPLE SUMMARY Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Date/Time Date/Time Lab Sample ID Client Sample ID Client Matrix Sampled Received 200-33702-1 U_WC_052516_01 Solid 05/25/2016 0840 05/26/2016 1215 200-33702-2 U_WC_052516_02 Solid 05/25/2016 0850 05/26/2016 1215 200-33702-3 U_WC_052516_03 Solid 05/25/2016 0915 05/26/2016 1215 200-33702-4 U_WC_052516_04 Solid 05/25/2016 0930 05/26/2016 1215 TestAmerica Burlington Page 8 of 123

SAMPLE RESULTS TestAmerica Burlington Page 9 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_01 Lab Sample ID: 200-33702-1 % Moisture: 26.7 Date Sampled: 05/25/2016 0840 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0147 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16273.D 32.0 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 670 U 47 670 Aniline 500 U 170 500 Phenol 420 U 23 420 Bis(2-chloroethyl)ether 420 U 21 420 2-Chlorophenol 420 U 27 420 1,3-Dichlorobenzene 420 U 15 420 1,4-Dichlorobenzene 420 U 17 420 Benzyl alcohol 420 U 13 420 1,2-Dichlorobenzene 420 U 28 420 2-Methylphenol 420 U 17 420 2,2'-oxybis[1-chloropropane] 420 U 29 420 3 & 4 Methylphenol 420 U 42 420 N-Nitrosodi-n-propylamine 420 U 40 420 Hexachloroethane 420 U 27 420 Nitrobenzene 420 U 28 420 Isophorone 420 U 22 420 2-Nitrophenol 420 U 13 420 2,4-Dimethylphenol 420 U 84 420 Benzoic acid 2000 U 420 2000 Bis(2-chloroethoxy)methane 420 U 29 420 2,4-Dichlorophenol 420 U 13 420 1,2,4-Trichlorobenzene 420 U 36 420 Naphthalene 420 U 40 420 4-Chloroaniline 420 U 100 420 Hexachlorobutadiene 420 U 13 420 4-Chloro-3-methylphenol 420 U 84 420 2-Methylnaphthalene 420 U 24 420 Hexachlorocyclopentadiene 2200 U 64 2200 2,4,6-Trichlorophenol 420 U 13 420 2,4,5-Trichlorophenol 420 U 13 420 2-Chloronaphthalene 420 U 13 420 2-Nitroaniline 2000 U 64 2000 Dimethyl phthalate 420 U 29 420 Acenaphthylene 420 U 22 420 2,6-Dinitrotoluene 420 U 36 420 3-Nitroaniline 2000 U 93 2000 Acenaphthene 420 U 13 420 2,4-Dinitrophenol 2000 U 430 2000 4-Nitrophenol 2000 U 120 2000 Dibenzofuran 420 U 26 420 2,4-Dinitrotoluene 420 U 84 420 Diethyl phthalate 840 U 33 840 Fluorene 420 U 23 420 4-Chlorophenyl phenyl ether 420 U 27 420 5-Nitro-o-toluidine 840 U 79 840 4-Nitroaniline 2000 U 93 2000 TestAmerica Burlington Page 10 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_01 Lab Sample ID: 200-33702-1 % Moisture: 26.7 Date Sampled: 05/25/2016 0840 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0147 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16273.D 32.0 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 2000 U 420 2000 N-Nitrosodiphenylamine 420 U 27 420 4-Bromophenyl phenyl ether 420 U 24 420 Hexachlorobenzene 420 U 37 420 Pentachlorophenol 2000 U 420 2000 Phenanthrene 420 U 22 420 Anthracene 420 U 22 420 Carbazole 420 U 46 420 Di-n-butyl phthalate 420 U 37 420 Fluoranthene 420 U 46 420 Pyrene 16 J 15 510 Butyl benzyl phthalate 420 U 55 420 Benzo[a]anthracene 420 U 26 420 Chrysene 420 U 35 420 3,3'-Dichlorobenzidine 2000 U 120 2000 Bis(2-ethylhexyl) phthalate 420 U 59 420 Di-n-octyl phthalate 420 U 18 420 Benzo[b]fluoranthene 420 U 34 420 Benzo[k]fluoranthene 420 U 51 420 Benzo[a]pyrene 420 U 26 420 Indeno[1,2,3-cd]pyrene 420 U 28 420 Dibenz(a,h)anthracene 420 U 24 420 Benzo[g,h,i]perylene 420 U 20 420 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 69 35-105 Phenol-d5 (Surr) 71 40-100 Nitrobenzene-d5 (Surr) 66 35-100 2-Fluorobiphenyl 73 45-105 2,4,6-Tribromophenol (Surr) 83 35-125 Terphenyl-d14 (Surr) 83 30-125 TestAmerica Burlington Page 11 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_02 Lab Sample ID: 200-33702-2 % Moisture: 13.5 Date Sampled: 05/25/2016 0850 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0215 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16274.D 31.4 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 570 U 41 570 Aniline 430 U 140 430 Phenol 360 U 20 360 Bis(2-chloroethyl)ether 360 U 18 360 2-Chlorophenol 360 U 23 360 1,3-Dichlorobenzene 360 U 13 360 1,4-Dichlorobenzene 360 U 15 360 Benzyl alcohol 360 U 11 360 1,2-Dichlorobenzene 360 U 24 360 2-Methylphenol 360 U 14 360 2,2'-oxybis[1-chloropropane] 360 U 25 360 3 & 4 Methylphenol 360 U 36 360 N-Nitrosodi-n-propylamine 360 U 34 360 Hexachloroethane 360 U 24 360 Nitrobenzene 360 U 24 360 Isophorone 360 U 19 360 2-Nitrophenol 360 U 11 360 2,4-Dimethylphenol 360 U 73 360 Benzoic acid 1800 U 360 1800 Bis(2-chloroethoxy)methane 360 U 25 360 2,4-Dichlorophenol 360 U 11 360 1,2,4-Trichlorobenzene 360 U 31 360 Naphthalene 360 U 34 360 4-Chloroaniline 360 U 90 360 Hexachlorobutadiene 360 U 11 360 4-Chloro-3-methylphenol 360 U 73 360 2-Methylnaphthalene 360 U 21 360 Hexachlorocyclopentadiene 1900 U 55 1900 2,4,6-Trichlorophenol 360 U 11 360 2,4,5-Trichlorophenol 360 U 11 360 2-Chloronaphthalene 360 U 11 360 2-Nitroaniline 1800 U 55 1800 Dimethyl phthalate 360 U 25 360 Acenaphthylene 360 U 19 360 2,6-Dinitrotoluene 360 U 31 360 3-Nitroaniline 1800 U 81 1800 Acenaphthene 360 U 11 360 2,4-Dinitrophenol 1800 U 370 1800 4-Nitrophenol 1800 U 110 1800 Dibenzofuran 360 U 22 360 2,4-Dinitrotoluene 360 U 73 360 Diethyl phthalate 730 U 29 730 Fluorene 360 U 20 360 4-Chlorophenyl phenyl ether 360 U 23 360 5-Nitro-o-toluidine 730 U 68 730 4-Nitroaniline 1800 U 80 1800 TestAmerica Burlington Page 13 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_02 Lab Sample ID: 200-33702-2 % Moisture: 13.5 Date Sampled: 05/25/2016 0850 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0215 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16274.D 31.4 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1800 U 360 1800 N-Nitrosodiphenylamine 360 U 23 360 4-Bromophenyl phenyl ether 360 U 21 360 Hexachlorobenzene 360 U 32 360 Pentachlorophenol 1800 U 360 1800 Phenanthrene 360 U 19 360 Anthracene 360 U 19 360 Carbazole 360 U 40 360 Di-n-butyl phthalate 360 U 32 360 Fluoranthene 360 U 40 360 Pyrene 440 U 13 440 Butyl benzyl phthalate 360 U 47 360 Benzo[a]anthracene 360 U 22 360 Chrysene 360 U 30 360 3,3'-Dichlorobenzidine 1800 U 99 1800 Bis(2-ethylhexyl) phthalate 360 U 51 360 Di-n-octyl phthalate 360 U 16 360 Benzo[b]fluoranthene 360 U 29 360 Benzo[k]fluoranthene 360 U 44 360 Benzo[a]pyrene 360 U 22 360 Indeno[1,2,3-cd]pyrene 360 U 24 360 Dibenz(a,h)anthracene 360 U 21 360 Benzo[g,h,i]perylene 360 U 18 360 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 79 35-105 Phenol-d5 (Surr) 80 40-100 Nitrobenzene-d5 (Surr) 76 35-100 2-Fluorobiphenyl 82 45-105 2,4,6-Tribromophenol (Surr) 93 35-125 Terphenyl-d14 (Surr) 94 30-125 TestAmerica Burlington Page 14 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_03 Lab Sample ID: 200-33702-3 % Moisture: 19.9 Date Sampled: 05/25/2016 0915 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0244 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16275.D 30.6 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 640 U 45 640 Aniline 480 U 160 480 Phenol 400 U 22 400 Bis(2-chloroethyl)ether 400 U 20 400 2-Chlorophenol 400 U 26 400 1,3-Dichlorobenzene 400 U 15 400 1,4-Dichlorobenzene 400 U 17 400 Benzyl alcohol 400 U 12 400 1,2-Dichlorobenzene 400 U 27 400 2-Methylphenol 400 U 16 400 2,2'-oxybis[1-chloropropane] 400 U 28 400 3 & 4 Methylphenol 400 U 40 400 N-Nitrosodi-n-propylamine 400 U 38 400 Hexachloroethane 400 U 26 400 Nitrobenzene 400 U 27 400 Isophorone 400 U 21 400 2-Nitrophenol 400 U 12 400 2,4-Dimethylphenol 400 U 81 400 Benzoic acid 2000 U 400 2000 Bis(2-chloroethoxy)methane 400 U 28 400 2,4-Dichlorophenol 400 U 12 400 1,2,4-Trichlorobenzene 400 U 34 400 Naphthalene 400 U 38 400 4-Chloroaniline 400 U 100 400 Hexachlorobutadiene 400 U 12 400 4-Chloro-3-methylphenol 400 U 81 400 2-Methylnaphthalene 400 U 23 400 Hexachlorocyclopentadiene 2100 U 61 2100 2,4,6-Trichlorophenol 400 U 12 400 2,4,5-Trichlorophenol 400 U 12 400 2-Chloronaphthalene 400 U 12 400 2-Nitroaniline 2000 U 61 2000 Dimethyl phthalate 400 U 28 400 Acenaphthylene 400 U 21 400 2,6-Dinitrotoluene 400 U 34 400 3-Nitroaniline 2000 U 89 2000 Acenaphthene 400 U 13 400 2,4-Dinitrophenol 2000 U 410 2000 4-Nitrophenol 2000 U 120 2000 Dibenzofuran 400 U 24 400 2,4-Dinitrotoluene 400 U 81 400 Diethyl phthalate 810 U 32 810 Fluorene 400 U 22 400 4-Chlorophenyl phenyl ether 400 U 26 400 5-Nitro-o-toluidine 810 U 76 810 4-Nitroaniline 2000 U 89 2000 TestAmerica Burlington Page 16 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_03 Lab Sample ID: 200-33702-3 % Moisture: 19.9 Date Sampled: 05/25/2016 0915 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0244 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16275.D 30.6 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 2000 U 400 2000 N-Nitrosodiphenylamine 400 U 26 400 4-Bromophenyl phenyl ether 400 U 23 400 Hexachlorobenzene 400 U 35 400 Pentachlorophenol 2000 U 400 2000 Phenanthrene 400 U 21 400 Anthracene 400 U 21 400 Carbazole 400 U 44 400 Di-n-butyl phthalate 400 U 35 400 Fluoranthene 400 U 44 400 Pyrene 16 J 15 490 Butyl benzyl phthalate 400 U 53 400 Benzo[a]anthracene 400 U 24 400 Chrysene 400 U 33 400 3,3'-Dichlorobenzidine 2000 U 110 2000 Bis(2-ethylhexyl) phthalate 400 U 56 400 Di-n-octyl phthalate 400 U 18 400 Benzo[b]fluoranthene 400 U 32 400 Benzo[k]fluoranthene 400 U 49 400 Benzo[a]pyrene 400 U 24 400 Indeno[1,2,3-cd]pyrene 400 U 27 400 Dibenz(a,h)anthracene 400 U 23 400 Benzo[g,h,i]perylene 400 U 20 400 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 78 35-105 Phenol-d5 (Surr) 79 40-100 Nitrobenzene-d5 (Surr) 75 35-100 2-Fluorobiphenyl 81 45-105 2,4,6-Tribromophenol (Surr) 92 35-125 Terphenyl-d14 (Surr) 93 30-125 TestAmerica Burlington Page 17 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_04 Lab Sample ID: 200-33702-4 % Moisture: 17.4 Date Sampled: 05/25/2016 0930 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0312 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16276.D 32.8 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL N-Nitrosodimethylamine 580 U 41 580 Aniline 430 U 140 430 Phenol 370 U 20 370 Bis(2-chloroethyl)ether 370 U 18 370 2-Chlorophenol 370 U 23 370 1,3-Dichlorobenzene 370 U 13 370 1,4-Dichlorobenzene 370 U 15 370 Benzyl alcohol 370 U 11 370 1,2-Dichlorobenzene 370 U 24 370 2-Methylphenol 370 U 14 370 2,2'-oxybis[1-chloropropane] 370 U 25 370 3 & 4 Methylphenol 370 U 37 370 N-Nitrosodi-n-propylamine 370 U 34 370 Hexachloroethane 370 U 24 370 Nitrobenzene 370 U 24 370 Isophorone 370 U 19 370 2-Nitrophenol 370 U 11 370 2,4-Dimethylphenol 370 U 73 370 Benzoic acid 1800 U 370 1800 Bis(2-chloroethoxy)methane 370 U 25 370 2,4-Dichlorophenol 370 U 11 370 1,2,4-Trichlorobenzene 370 U 31 370 Naphthalene 370 U 34 370 4-Chloroaniline 370 U 91 370 Hexachlorobutadiene 370 U 11 370 4-Chloro-3-methylphenol 370 U 73 370 2-Methylnaphthalene 370 U 21 370 Hexachlorocyclopentadiene 1900 U 55 1900 2,4,6-Trichlorophenol 370 U 11 370 2,4,5-Trichlorophenol 370 U 11 370 2-Chloronaphthalene 370 U 11 370 2-Nitroaniline 1800 U 55 1800 Dimethyl phthalate 370 U 25 370 Acenaphthylene 370 U 19 370 2,6-Dinitrotoluene 370 U 31 370 3-Nitroaniline 1800 U 81 1800 Acenaphthene 370 U 11 370 2,4-Dinitrophenol 1800 U 370 1800 4-Nitrophenol 1800 U 110 1800 Dibenzofuran 370 U 22 370 2,4-Dinitrotoluene 370 U 73 370 Diethyl phthalate 730 U 29 730 Fluorene 370 U 20 370 4-Chlorophenyl phenyl ether 370 U 23 370 5-Nitro-o-toluidine 730 U 69 730 4-Nitroaniline 1800 U 80 1800 TestAmerica Burlington Page 19 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_04 Lab Sample ID: 200-33702-4 % Moisture: 17.4 Date Sampled: 05/25/2016 0930 Date Received: 05/26/2016 1215 8270C Semivolatile Organic Compounds (GC/MS) Analysis Method: Prep Method: 8270C 3550C 06/10/2016 0312 06/01/2016 1042 Analysis Batch: 280-329202 280-327871 Injection Volume: SMS_D D16276.D 32.8 g 1 ml 0.5 ul Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL 4,6-Dinitro-2-methylphenol 1800 U 370 1800 N-Nitrosodiphenylamine 370 U 23 370 4-Bromophenyl phenyl ether 370 U 21 370 Hexachlorobenzene 370 U 32 370 Pentachlorophenol 1800 U 370 1800 Phenanthrene 370 U 19 370 Anthracene 370 U 19 370 Carbazole 370 U 40 370 Di-n-butyl phthalate 370 U 32 370 Fluoranthene 370 U 40 370 Pyrene 13 J 13 440 Butyl benzyl phthalate 370 U 48 370 Benzo[a]anthracene 370 U 22 370 Chrysene 370 U 30 370 3,3'-Dichlorobenzidine 1800 U 100 1800 Bis(2-ethylhexyl) phthalate 370 U 51 370 Di-n-octyl phthalate 370 U 16 370 Benzo[b]fluoranthene 370 U 29 370 Benzo[k]fluoranthene 370 U 44 370 Benzo[a]pyrene 370 U 22 370 Indeno[1,2,3-cd]pyrene 370 U 24 370 Dibenz(a,h)anthracene 370 U 21 370 Benzo[g,h,i]perylene 370 U 18 370 Surrogate %Rec Qualifier Acceptance Limits 2-Fluorophenol (Surr) 81 35-105 Phenol-d5 (Surr) 82 40-100 Nitrobenzene-d5 (Surr) 77 35-100 2-Fluorobiphenyl 85 45-105 2,4,6-Tribromophenol (Surr) 93 35-125 Terphenyl-d14 (Surr) 95 30-125 TestAmerica Burlington Page 20 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_01 Lab Sample ID: 200-33702-1 % Moisture: 26.7 Date Sampled: 05/25/2016 0840 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1608 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 31.9 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 42 U 6.5 42 PCB-1221 60 U 20 60 PCB-1232 42 U 6.6 42 PCB-1242 42 U 12 42 PCB-1248 42 U 7.2 42 PCB-1254 42 U 7.1 42 PCB-1260 250 3.4 42 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 90 44-130 DCB Decachlorobiphenyl 97 60-125 TestAmerica Burlington Page 38 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_02 Lab Sample ID: 200-33702-2 % Moisture: 13.5 Date Sampled: 05/25/2016 0850 Date Received: 05/26/2016 1215 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography Analysis Method: Prep Method: 8082A 3546 06/08/2016 1631 06/06/2016 1301 Analysis Batch: 280-328868 280-328536 Injection Volume: Result Type: SGC_W 32.0 g 10 ml 1 ul PRIMARY Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL PCB-1016 36 U 5.5 36 PCB-1221 51 U 17 51 PCB-1232 36 U 5.5 36 PCB-1242 36 U 9.9 36 PCB-1248 36 U 6.1 36 PCB-1254 36 U 6.0 36 PCB-1260 36 U 2.9 36 Surrogate %Rec Qualifier Acceptance Limits Tetrachloro-m-xylene 94 44-130 DCB Decachlorobiphenyl 110 60-125 TestAmerica Burlington Page 39 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_01 Lab Sample ID: Client Matrix: 200-33702-1 Solid Date Sampled: 05/25/2016 0840 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 2017 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.06 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 99.4 U 24.9 99.4 HMX 99.4 U 7.65 99.4 2,4-diamino-6-nitrotoluene 99.4 U 24.9 99.4 RDX 54.8 J p 16.9 99.4 Picric acid 99.4 U 10.9 99.4 1,3,5-Trinitrobenzene 99.4 U 24.9 99.4 1,3-Dinitrobenzene 99.4 U 11.9 99.4 Nitrobenzene 120 p 14.9 99.4 Tetryl 99.4 U 29.8 99.4 Nitroglycerin 13900 p 567 1990 2,4,6-Trinitrotoluene 40.6 J p 14.9 99.4 4-Amino-2,6-dinitrotoluene 789 p 15.9 99.4 2-Amino-4,6-dinitrotoluene 99.4 U 13.9 99.4 2,6-Dinitrotoluene 99.4 U 14.9 99.4 2,4-Dinitrotoluene 99.4 U 29.8 99.4 2-Nitrotoluene 182 p 23.9 99.4 4-Nitrotoluene 99.4 U 43.7 99.4 3-Nitrotoluene 99.4 U 41.7 99.4 PETN 3210 J p 1490 4970 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 118 55-145 TestAmerica Burlington Page 46 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_02 Lab Sample ID: Client Matrix: 200-33702-2 Solid Date Sampled: 05/25/2016 0850 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 2055 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.00 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 100 U 25.0 100 HMX 100 U 7.70 100 2,4-diamino-6-nitrotoluene 100 U 25.0 100 RDX 100 U 17.0 100 Picric acid 100 U 1 100 1,3,5-Trinitrobenzene 100 U 25.0 100 1,3-Dinitrobenzene 100 U 12.0 100 Nitrobenzene 429 p 15.0 100 Tetryl 100 U 30.0 100 Nitroglycerin 2000 U 570 2000 2,4,6-Trinitrotoluene 100 U 15.0 100 4-Amino-2,6-dinitrotoluene 427 p 16.0 100 2-Amino-4,6-dinitrotoluene 100 U 14.0 100 2,6-Dinitrotoluene 100 U 15.0 100 2,4-Dinitrotoluene 100 U 30.0 100 2-Nitrotoluene 100 U 24.0 100 4-Nitrotoluene 100 U 44.0 100 3-Nitrotoluene 100 U 42.0 100 PETN 5000 U 1500 5000 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 99 55-145 TestAmerica Burlington Page 48 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_03 Lab Sample ID: Client Matrix: 200-33702-3 Solid Date Sampled: 05/25/2016 0915 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 2132 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 10.01 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 99.9 U 25.0 99.9 HMX 99.9 U 7.69 99.9 2,4-diamino-6-nitrotoluene 99.9 U 25.0 99.9 RDX 99.9 U 17.0 99.9 Picric acid 99.9 U 1 99.9 1,3,5-Trinitrobenzene 99.9 U 25.0 99.9 1,3-Dinitrobenzene 99.9 U 12.0 99.9 Nitrobenzene 99.9 U 15.0 99.9 Tetryl 99.9 U 30.0 99.9 Nitroglycerin 2000 U 569 2000 2,4,6-Trinitrotoluene 99.9 U 15.0 99.9 4-Amino-2,6-dinitrotoluene 85.6 J p 16.0 99.9 2-Amino-4,6-dinitrotoluene 99.9 U 14.0 99.9 2,6-Dinitrotoluene 99.9 U 15.0 99.9 2,4-Dinitrotoluene 99.9 U 30.0 99.9 2-Nitrotoluene 99.9 U 24.0 99.9 4-Nitrotoluene 99.9 U 44.0 99.9 3-Nitrotoluene 99.9 U 42.0 99.9 PETN 5000 U 1500 5000 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 95 55-145 TestAmerica Burlington Page 50 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_04 Lab Sample ID: Client Matrix: 200-33702-4 Solid Date Sampled: 05/25/2016 0930 Date Received: 05/26/2016 1215 8B Nitroaromatics and Nitramines (HPLC) Analysis Method: Prep Method: 8B 8 06/15/2016 2210 06/07/2016 1640 Analysis Batch: 200-105737 200-105051 Injection Volume: Result Type: CH1208 9.99 g 100 ml 150 ul PRIMARY Analyte DryWt Corrected: N Result (ug/kg) Qualifier MDL RL 2,6-diamino-4-nitrotoluene 100 U 25.0 100 HMX 100 U 7.71 100 2,4-diamino-6-nitrotoluene 100 U 25.0 100 RDX 100 U 17.0 100 Picric acid 100 U 1 100 1,3,5-Trinitrobenzene 100 U 25.0 100 1,3-Dinitrobenzene 100 U 12.0 100 Nitrobenzene 100 U 15.0 100 Tetryl 100 U 30.0 100 Nitroglycerin 2000 U 571 2000 2,4,6-Trinitrotoluene 100 U 15.0 100 4-Amino-2,6-dinitrotoluene 39.8 J 16.0 100 2-Amino-4,6-dinitrotoluene 100 U 14.0 100 2,6-Dinitrotoluene 100 U 15.0 100 2,4-Dinitrotoluene 100 U 30.0 100 2-Nitrotoluene 100 U 24.0 100 4-Nitrotoluene 100 U 44.0 100 3-Nitrotoluene 100 U 42.0 100 PETN 5010 U 1500 5010 Surrogate %Rec Qualifier Acceptance Limits 1,2-Dinitrobenzene 101 55-145 TestAmerica Burlington Page 52 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_01 Lab Sample ID: 200-33702-1 % Moisture: 26.7 Date Sampled: 05/25/2016 0840 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.478 g 06/02/2016 0115 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 9.4 B 0.070 1.8 Cadmium 0.25 J 0.038 0.46 Chromium 8.0 B 0.054 3.2 Lead 7.7 0.25 0.83 Copper 12.3 0.20 4.6 Zinc 12.4 0.37 7.4 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.478 g 06/02/2016 1706 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 1.3 J 0.79 2.8 Silver 1.4 U 0.15 1.4 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.478 g 06/03/2016 2117 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 2.5 0.61 2.3 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.54 g 05/31/2016 1825 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 25.8 U 8.4 25.8 TestAmerica Burlington Page 58 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_02 Lab Sample ID: 200-33702-2 % Moisture: 13.5 Date Sampled: 05/25/2016 0850 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.354 g 06/02/2016 0118 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 9.1 B 0.065 1.7 Cadmium 0.19 J 0.035 0.43 Chromium 9.0 B 0.049 3.0 Lead 7.6 0.23 0.77 Copper 6.8 0.19 4.3 Zinc 12.5 0.34 6.8 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.354 g 06/02/2016 1709 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 2.6 U 0.73 2.6 Silver 1.3 U 0.14 1.3 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.354 g 06/03/2016 2119 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 3.3 0.56 2.1 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.55 g 05/31/2016 1827 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 17.3 J 7.0 21.4 TestAmerica Burlington Page 59 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_03 Lab Sample ID: 200-33702-3 % Moisture: 19.9 Date Sampled: 05/25/2016 0915 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.421 g 06/02/2016 0121 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 11.3 B 0.067 1.8 Cadmium 1.8 0.036 0.44 Chromium 13.9 B 0.051 3.1 Lead 11.7 0.24 0.79 Copper 11.3 0.19 4.4 Zinc 19.0 0.35 7.0 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.421 g 06/02/2016 1711 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 0.93 J 0.76 2.6 Silver 1.3 U 0.14 1.3 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.421 g 06/03/2016 2122 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 3.7 0.58 2.2 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.55 g 05/31/2016 1830 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 16.3 J 7.5 23.1 TestAmerica Burlington Page 60 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 U_WC_052516_04 Lab Sample ID: 200-33702-4 % Moisture: 17.4 Date Sampled: 05/25/2016 0930 Date Received: 05/26/2016 1215 6010C Metals (ICP) Analysis Method: 6010C Analysis Batch: 280-328052 MT_026 Prep Method: 3050B 280-327633 26C060116.asc 1.339 g 06/02/2016 0123 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Barium 10.1 B 0.069 1.8 Cadmium 0.25 J 0.037 0.45 Chromium 7.5 B 0.052 3.2 Lead 6.5 0.24 0.81 Copper 10.7 0.20 4.5 Zinc 14.6 0.36 7.2 Analysis Method: 6010C Analysis Batch: 280-328232 MT_026 Prep Method: 3050B 280-327633 26A060216.asc 1.339 g 06/02/2016 1714 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Selenium 1.1 J 0.78 2.7 Silver 1.4 U 0.14 1.4 Analysis Method: 6010C Analysis Batch: 280-328494 MT_026 Prep Method: 3050B 280-327633 26A060316.asc 1.339 g 06/03/2016 2125 100 ml 06/01/2016 1435 Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Arsenic 2.5 0.60 2.3 7471B Mercury (CVAA) Analysis Method: 7471B Analysis Batch: 280-327855 MT_034 Prep Method: 7471B 280-327680 160531ba.txt 0.59 g 05/31/2016 1832 50 ml 05/31/2016 1220 Analyte DryWt Corrected: Y Result (ug/kg) Qualifier MDL RL Hg 13.2 J 6.8 20.9 TestAmerica Burlington Page 61 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 General Chemistry Lab Sample ID: Client Matrix: U_WC_052516_01 200-33702-1 Solid Date Sampled: 05/25/2016 0840 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.29 J mg/kg 0.13 0.65 9012B Analysis Batch: 280-328764 06/07/2016 1322 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 13.4 U mg/kg 6.4 13.4 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.00 SU 0.100 0.100 9045D Analysis Batch: 280-328591 06/06/2016 1739 DryWt Corrected: N Temperature-Soluble 23.1 Degrees C 0 0 9045D Analysis Batch: 280-328591 06/06/2016 1739 DryWt Corrected: N Percent Moisture 26.7 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 73.3 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N TestAmerica Burlington Page 62 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 General Chemistry Lab Sample ID: Client Matrix: U_WC_052516_02 200-33702-2 Solid Date Sampled: 05/25/2016 0850 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.42 J mg/kg 0.12 0.56 9012B Analysis Batch: 280-328764 06/07/2016 1324 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 5.7 U mg/kg 2.8 5.7 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.05 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.2 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 13.5 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 86.5 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 9.05 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 63 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 General Chemistry Lab Sample ID: Client Matrix: U_WC_052516_03 200-33702-3 Solid Date Sampled: 05/25/2016 0915 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.27 J mg/kg 0.12 0.59 9012B Analysis Batch: 280-328764 06/07/2016 1325 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 12.3 U mg/kg 5.9 12.3 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.11 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.2 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 19.9 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 80.1 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 8.93 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 64 of 123

Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 General Chemistry Lab Sample ID: Client Matrix: U_WC_052516_04 200-33702-4 Solid Date Sampled: 05/25/2016 0930 Date Received: 05/26/2016 1215 Analyte Result Qual Units MDL RL Dil Method Ignitability nb mm/sec 1030 Analysis Batch: 680-437160 06/13/2016 1423 DryWt Corrected: N Cyanide, Total 0.25 J mg/kg 0.12 0.56 9012B Analysis Batch: 280-328764 06/07/2016 1337 DryWt Corrected: Y 280-328663 06/07/2016 0616 Sulfide 5.8 J mg/kg 5.8 12.0 9034 Analysis Batch: 280-327982 06/01/2016 1457 DryWt Corrected: Y 280-327935 06/01/2016 1143 ph adj. to 25 deg C-Soluble 5.06 SU 0.100 0.100 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Temperature-Soluble 21.3 Degrees C 0 0 9045D Analysis Batch: 280-327788 05/31/2016 1624 DryWt Corrected: N Percent Moisture 17.4 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Percent Solids 82.6 % 0.1 0.1 Moisture Analysis Batch: 280-327539 05/28/2016 1013 DryWt Corrected: N Specific Conductance-Soluble 8.86 umhos/cm 2.00 2.00 SM 2510B Analysis Batch: 280-305 06/17/2016 2051 DryWt Corrected: N TestAmerica Burlington Page 65 of 123

DATA REPORTING QUALIFIERS Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Lab Section Qualifier Description GC/MS Semi VOA J U J N Indicates an Estimated Value for TICs Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. This flag indicates the presumptive evidence of a compound. GC VOA U Indicates the analyte was analyzed for but not detected. GC Semi VOA B U * J D X D Compound was found in the blank and sample. Indicates the analyte was analyzed for but not detected. LCS or LCSD is outside acceptance limits. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Sample results are obtained from a dilution; the surrogate or matrix spike recoveries reported are calculated from diluted samples. Surrogate is outside control limits Surrogate or matrix spike recoveries were not obtained because the extract was diluted for analysis; also compounds analyzed at a dilution may be flagged with a D. HPLC/IC U J p Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. The %RPD between the primary and confirmation column/detector is >40%. The lower value has been reported. LCMS U Indicates the analyte was analyzed for but not detected. TestAmerica Burlington Page 66 of 123

DATA REPORTING QUALIFIERS Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Lab Section Qualifier Description Metals B U J Compound was found in the blank and sample. Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. General Chemistry U J Indicates the analyte was analyzed for but not detected. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. TestAmerica Burlington Page 67 of 123

QUALITY CONTROL RESULTS TestAmerica Burlington Page 68 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC/MS Semi VOA 280-327871 LCS 280-327871/2-A Lab Control Sample T Solid 3550C MB 280-327871/1-A Method Blank T Solid 3550C 200-33702-1 U_WC_052516_01 T Solid 3550C 200-33702-2 U_WC_052516_02 T Solid 3550C 200-33702-3 U_WC_052516_03 T Solid 3550C 200-33702-4 U_WC_052516_04 T Solid 3550C Analysis Batch:280-329202 LCS 280-327871/2-A Lab Control Sample T Solid 8270C 280-327871 MB 280-327871/1-A Method Blank T Solid 8270C 280-327871 200-33702-1 U_WC_052516_01 T Solid 8270C 280-327871 200-33702-2 U_WC_052516_02 T Solid 8270C 280-327871 200-33702-3 U_WC_052516_03 T Solid 8270C 280-327871 200-33702-4 U_WC_052516_04 T Solid 8270C 280-327871 Report Basis T = Total GC VOA 280-328537 LCS 280-328537/2-A Lab Control Sample T Solid 5035 LCSD 280-328537/3-A Lab Control Sample Duplicate T Solid 5035 MB 280-328537/1-A Method Blank T Solid 5035 200-33702-1 U_WC_052516_01 T Solid 5035 200-33702-2 U_WC_052516_02 T Solid 5035 200-33702-3 U_WC_052516_03 T Solid 5035 200-33702-4 U_WC_052516_04 T Solid 5035 Analysis Batch:280-328547 LCS 280-328537/2-A Lab Control Sample T Solid 8015B GRO DOD 280-328537 LCSD 280-328537/3-A Lab Control Sample Duplicate T Solid 8015B GRO DOD 280-328537 MB 280-328537/1-A Method Blank T Solid 8015B GRO DOD 280-328537 200-33702-1 U_WC_052516_01 T Solid 8015B GRO DOD 280-328537 200-33702-2 U_WC_052516_02 T Solid 8015B GRO DOD 280-328537 200-33702-3 U_WC_052516_03 T Solid 8015B GRO DOD 280-328537 200-33702-4 U_WC_052516_04 T Solid 8015B GRO DOD 280-328537 Report Basis T = Total TestAmerica Burlington Page 69 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC Semi VOA 280-328536 LCS 280-328536/2-A Lab Control Sample T Solid 3546 LCS 280-328536/3-A Lab Control Sample T Solid 3546 LCS 280-328536/4-A Lab Control Sample T Solid 3546 MB 280-328536/1-A Method Blank T Solid 3546 200-33702-1 U_WC_052516_01 T Solid 3546 200-33702-1DL U_WC_052516_01 T Solid 3546 200-33702-2 U_WC_052516_02 T Solid 3546 200-33702-2DL U_WC_052516_02 T Solid 3546 200-33702-3 U_WC_052516_03 T Solid 3546 200-33702-3DL U_WC_052516_03 T Solid 3546 200-33702-4 U_WC_052516_04 T Solid 3546 200-33702-4DL U_WC_052516_04 T Solid 3546 280-328561 LCS 280-328561/2-A Lab Control Sample T Solid 3546 MB 280-328561/1-A Method Blank T Solid 3546 200-33702-1 U_WC_052516_01 T Solid 3546 200-33702-2 U_WC_052516_02 T Solid 3546 200-33702-3 U_WC_052516_03 T Solid 3546 200-33702-4 U_WC_052516_04 T Solid 3546 280-328790 LCS 280-328790/2-A Lab Control Sample T Solid 8151A MB 280-328790/1-A Method Blank T Solid 8151A 200-33702-1 U_WC_052516_01 T Solid 8151A 200-33702-2 U_WC_052516_02 T Solid 8151A 200-33702-3 U_WC_052516_03 T Solid 8151A 200-33702-4 U_WC_052516_04 T Solid 8151A Analysis Batch:280-328868 LCS 280-328536/3-A Lab Control Sample T Solid 8082A 280-328536 MB 280-328536/1-A Method Blank T Solid 8082A 280-328536 200-33702-1 U_WC_052516_01 T Solid 8082A 280-328536 200-33702-2 U_WC_052516_02 T Solid 8082A 280-328536 200-33702-3 U_WC_052516_03 T Solid 8082A 280-328536 200-33702-4 U_WC_052516_04 T Solid 8082A 280-328536 Analysis Batch:280-328891 LCS 280-328561/2-A Lab Control Sample T Solid 8015B DRO 280-328561 MB 280-328561/1-A Method Blank T Solid 8015B DRO 280-328561 200-33702-1 U_WC_052516_01 T Solid 8015B DRO 280-328561 200-33702-2 U_WC_052516_02 T Solid 8015B DRO 280-328561 200-33702-3 U_WC_052516_03 T Solid 8015B DRO 280-328561 200-33702-4 U_WC_052516_04 T Solid 8015B DRO 280-328561 TestAmerica Burlington Page 70 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch GC Semi VOA Analysis Batch:280-329032 LCS 280-328536/2-A MB 280-328536/1-A Analysis Batch:280-329199 LCS 280-328536/2-A LCS 280-328536/4-A MB 280-328536/1-A 200-33702-1DL 200-33702-2DL 200-33702-3DL 200-33702-4DL Lab Control Sample T Solid 8081B 280-328536 Method Blank T Solid 8081B 280-328536 Lab Control Sample T Solid 8081B 280-328536 Lab Control Sample T Solid 8081B 280-328536 Method Blank T Solid 8081B 280-328536 U_WC_052516_01 T Solid 8081B 280-328536 U_WC_052516_02 T Solid 8081B 280-328536 U_WC_052516_03 T Solid 8081B 280-328536 U_WC_052516_04 T Solid 8081B 280-328536 Analysis Batch:280-329345 200-33702-1 U_WC_052516_01 T 200-33702-2 U_WC_052516_02 T 200-33702-3 U_WC_052516_03 T 200-33702-4 U_WC_052516_04 T Solid 8081B 280-328536 Solid 8081B 280-328536 Solid 8081B 280-328536 Solid 8081B 280-328536 Analysis Batch:280-329641 LCS 280-328790/2-A Lab Control Sample T Solid 8151A 280-328790 MB 280-328790/1-A Method Blank T Solid 8151A 280-328790 200-33702-1 U_WC_052516_01 T Solid 8151A 280-328790 200-33702-2 U_WC_052516_02 T Solid 8151A 280-328790 200-33702-3 U_WC_052516_03 T Solid 8151A 280-328790 200-33702-4 U_WC_052516_04 T Solid 8151A 280-328790 Report Basis T = Total TestAmerica Burlington Page 71 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch Metals 280-327633 LCS 280-327633/2-A Lab Control Sample T Solid 3050B MB 280-327633/1-A Method Blank T Solid 3050B 200-33702-1 U_WC_052516_01 T Solid 3050B 200-33702-2 U_WC_052516_02 T Solid 3050B 200-33702-3 U_WC_052516_03 T Solid 3050B 200-33702-4 U_WC_052516_04 T Solid 3050B 280-327680 LCS 280-327680/2-A Lab Control Sample T Solid 7471B MB 280-327680/1-A Method Blank T Solid 7471B 200-33702-1 U_WC_052516_01 T Solid 7471B 200-33702-2 U_WC_052516_02 T Solid 7471B 200-33702-3 U_WC_052516_03 T Solid 7471B 200-33702-4 U_WC_052516_04 T Solid 7471B Analysis Batch:280-327855 LCS 280-327680/2-A Lab Control Sample T Solid 7471B 280-327680 MB 280-327680/1-A Method Blank T Solid 7471B 280-327680 200-33702-1 U_WC_052516_01 T Solid 7471B 280-327680 200-33702-2 U_WC_052516_02 T Solid 7471B 280-327680 200-33702-3 U_WC_052516_03 T Solid 7471B 280-327680 200-33702-4 U_WC_052516_04 T Solid 7471B 280-327680 Analysis Batch:280-328052 LCS 280-327633/2-A Lab Control Sample T Solid 6010C 280-327633 MB 280-327633/1-A Method Blank T Solid 6010C 280-327633 200-33702-1 U_WC_052516_01 T Solid 6010C 280-327633 200-33702-2 U_WC_052516_02 T Solid 6010C 280-327633 200-33702-3 U_WC_052516_03 T Solid 6010C 280-327633 200-33702-4 U_WC_052516_04 T Solid 6010C 280-327633 Analysis Batch:280-328232 LCS 280-327633/2-A Lab Control Sample T Solid 6010C 280-327633 MB 280-327633/1-A Method Blank T Solid 6010C 280-327633 200-33702-1 U_WC_052516_01 T Solid 6010C 280-327633 200-33702-2 U_WC_052516_02 T Solid 6010C 280-327633 200-33702-3 U_WC_052516_03 T Solid 6010C 280-327633 200-33702-4 U_WC_052516_04 T Solid 6010C 280-327633 Analysis Batch:280-328494 200-33702-1 U_WC_052516_01 T 200-33702-2 U_WC_052516_02 T 200-33702-3 U_WC_052516_03 T 200-33702-4 U_WC_052516_04 T Solid 6010C 280-327633 Solid 6010C 280-327633 Solid 6010C 280-327633 Solid 6010C 280-327633 TestAmerica Burlington Page 72 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry Analysis Batch:280-327539 200-33702-1 U_WC_052516_01 T Solid Moisture 200-33702-2 U_WC_052516_02 T Solid Moisture 200-33702-2DU Duplicate T Solid Moisture 200-33702-3 U_WC_052516_03 T Solid Moisture 200-33702-4 U_WC_052516_04 T Solid Moisture 280-327740 LCS 280-327740/1-A Lab Control Sample S Solid DI Leach 200-33702-2 U_WC_052516_02 S Solid DI Leach 200-33702-3 U_WC_052516_03 S Solid DI Leach 200-33702-4 U_WC_052516_04 S Solid DI Leach Analysis Batch:280-327788 LCS 280-327740/1-A Lab Control Sample S Solid 9045D 200-33702-2 U_WC_052516_02 S Solid 9045D 200-33702-3 U_WC_052516_03 S Solid 9045D 200-33702-4 U_WC_052516_04 S Solid 9045D 280-327935 LCS 280-327935/1-A Lab Control Sample T Solid 9030B MB 280-327935/2-A Method Blank T Solid 9030B 200-33702-1 U_WC_052516_01 T Solid 9030B 200-33702-2 U_WC_052516_02 T Solid 9030B 200-33702-3 U_WC_052516_03 T Solid 9030B 200-33702-4 U_WC_052516_04 T Solid 9030B Analysis Batch:280-327982 LCS 280-327935/1-A Lab Control Sample T Solid 9034 280-327935 MB 280-327935/2-A Method Blank T Solid 9034 280-327935 200-33702-1 U_WC_052516_01 T Solid 9034 280-327935 200-33702-2 U_WC_052516_02 T Solid 9034 280-327935 200-33702-3 U_WC_052516_03 T Solid 9034 280-327935 200-33702-4 U_WC_052516_04 T Solid 9034 280-327935 280-328576 LCS 280-328576/1-A Lab Control Sample S Solid DI Leach 200-33702-1 U_WC_052516_01 S Solid DI Leach 200-33702-1DU Duplicate S Solid DI Leach Analysis Batch:280-328591 LCS 280-328576/1-A Lab Control Sample S Solid 9045D 200-33702-1 U_WC_052516_01 S Solid 9045D 200-33702-1DU Duplicate S Solid 9045D TestAmerica Burlington Page 74 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry 280-328663 HLCS 280-328663/1-A High Level Control Sample T Solid 9012B LCS 280-328663/3-A Lab Control Sample T Solid 9012B LLCS 280-328663/2-A Low Level Control Sample T Solid 9012B MB 280-328663/4-A Method Blank T Solid 9012B 200-33702-1 U_WC_052516_01 T Solid 9012B 200-33702-2 U_WC_052516_02 T Solid 9012B 200-33702-3 U_WC_052516_03 T Solid 9012B 200-33702-3MS Matrix Spike T Solid 9012B 200-33702-3MSD Matrix Spike Duplicate T Solid 9012B 200-33702-4 U_WC_052516_04 T Solid 9012B Analysis Batch:280-328764 HLCS 280-328663/1-A High Level Control Sample T Solid 9012B 280-328663 LCS 280-328663/3-A Lab Control Sample T Solid 9012B 280-328663 LLCS 280-328663/2-A Low Level Control Sample T Solid 9012B 280-328663 MB 280-328663/4-A Method Blank T Solid 9012B 280-328663 200-33702-1 U_WC_052516_01 T Solid 9012B 280-328663 200-33702-2 U_WC_052516_02 T Solid 9012B 280-328663 200-33702-3 U_WC_052516_03 T Solid 9012B 280-328663 200-33702-3MS Matrix Spike T Solid 9012B 280-328663 200-33702-3MSD Matrix Spike Duplicate T Solid 9012B 280-328663 200-33702-4 U_WC_052516_04 T Solid 9012B 280-328663 Analysis Batch:280-305 LCS 280-467/3-A Lab Control Sample S Solid SM 2510B MB 280-467/4-A Method Blank S Solid SM 2510B 200-33702-2 U_WC_052516_02 S Solid SM 2510B 200-33702-3 U_WC_052516_03 S Solid SM 2510B 200-33702-3DU Duplicate S Solid SM 2510B 200-33702-4 U_WC_052516_04 S Solid SM 2510B 280-467 LCS 280-467/3-A Lab Control Sample S Solid DI Leach MB 280-467/4-A Method Blank S Solid DI Leach 200-33702-2 U_WC_052516_02 S Solid DI Leach 200-33702-3 U_WC_052516_03 S Solid DI Leach 200-33702-3DU Duplicate S Solid DI Leach 200-33702-4 U_WC_052516_04 S Solid DI Leach TestAmerica Burlington Page 75 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 QC Association Summary Lab Sample ID Client Sample ID Report Basis Client Matrix Method Prep Batch General Chemistry Analysis Batch:680-437160 LCS 680-437160/2 Lab Control Sample T Solid 1030 LCSD 680-437160/23 Lab Control Sample Duplicate T Solid 1030 MB 680-437160/1 Method Blank T Solid 1030 200-33702-1 U_WC_052516_01 T Solid 1030 200-33702-2 U_WC_052516_02 T Solid 1030 200-33702-3 U_WC_052516_03 T Solid 1030 200-33702-4 U_WC_052516_04 T Solid 1030 Report Basis S = Soluble T = Total HPLC/IC 200-105051 LCS 200-105051/2-A Lab Control Sample T Solid 8 MB 200-105051/1-A Method Blank T Solid 8 200-33702-1 U_WC_052516_01 T Solid 8 200-33702-2 U_WC_052516_02 T Solid 8 200-33702-3 U_WC_052516_03 T Solid 8 200-33702-4 U_WC_052516_04 T Solid 8 Analysis Batch:200-105737 LCS 200-105051/2-A Lab Control Sample T Solid 8B 200-105051 MB 200-105051/1-A Method Blank T Solid 8B 200-105051 200-33702-1 U_WC_052516_01 T Solid 8B 200-105051 200-33702-2 U_WC_052516_02 T Solid 8B 200-105051 200-33702-3 U_WC_052516_03 T Solid 8B 200-105051 200-33702-4 U_WC_052516_04 T Solid 8B 200-105051 Analysis Batch:200-105755 LCS 200-105051/2-A Lab Control Sample T Solid 8B 200-105051 MB 200-105051/1-A Method Blank T Solid 8B 200-105051 200-33702-1 U_WC_052516_01 T Solid 8B 200-105051 200-33702-2 U_WC_052516_02 T Solid 8B 200-105051 200-33702-3 U_WC_052516_03 T Solid 8B 200-105051 200-33702-4 U_WC_052516_04 T Solid 8B 200-105051 Report Basis T = Total TestAmerica Burlington Page 76 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8B Nitroaromatics and Nitramines (HPLC) 12DNB1 12DNB2 Lab Sample ID Client Sample ID %Rec %Rec 200-33702-1 U_WC_052516_01 118 200-33702-1 U_WC_052516_01 139 200-33702-2 U_WC_052516_02 99 200-33702-2 U_WC_052516_02 102 200-33702-3 U_WC_052516_03 95 200-33702-3 U_WC_052516_03 111 200-33702-4 U_WC_052516_04 101 200-33702-4 U_WC_052516_04 100 MB 200-105051/1-A 98 MB 200-105051/1-A 105 LCS 200-105051/2-A 104 LCS 200-105051/2-A 105 Surrogate Acceptance Limits 12DNB = 1,2-Dinitrobenzene 55-145 TestAmerica Burlington Page 77 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8270C Semivolatile Organic Compounds (GC/MS) Lab Sample ID Client Sample ID 2FP PHL NBZ FBP TBP TPH %Rec %Rec %Rec %Rec %Rec %Rec 200-33702-1 U_WC_052516_01 69 71 66 73 83 83 200-33702-2 U_WC_052516_02 79 80 76 82 93 94 200-33702-3 U_WC_052516_03 78 79 75 81 92 93 200-33702-4 U_WC_052516_04 81 82 77 85 93 95 MB 280-327871/1-A 81 79 76 81 84 92 LCS 280-327871/2-A 81 81 77 81 95 94 Surrogate Acceptance Limits 2FP = 2-Fluorophenol (Surr) 35-105 PHL = Phenol-d5 (Surr) 40-100 NBZ = Nitrobenzene-d5 (Surr) 35-100 FBP = 2-Fluorobiphenyl 45-105 TBP = 2,4,6-Tribromophenol (Surr) 35-125 TPH = Terphenyl-d14 (Surr) 30-125 TestAmerica Burlington Page 78 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8015B GRO DOD Gasoline Range Organics - (GC) Lab Sample ID Client Sample ID TFT1 %Rec 200-33702-1 U_WC_052516_01 100 200-33702-2 U_WC_052516_02 99 200-33702-3 U_WC_052516_03 100 200-33702-4 U_WC_052516_04 117 MB 280-328537/1-A 84 LCS 280-328537/2-A 89 LCSD 280-328537/3-A 96 Surrogate Acceptance Limits TFT = a,a,a-trifluorotoluene 77-123 TestAmerica Burlington Page 79 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8015B DRO Diesel Range Organics (DRO) (GC) OTPH1 OTC1 Lab Sample ID Client Sample ID %Rec %Rec 200-33702-1 U_WC_052516_01 93 117 200-33702-2 U_WC_052516_02 87 138 200-33702-3 U_WC_052516_03 90 108 200-33702-4 U_WC_052516_04 84 96 MB 280-328561/1-A 92 92 LCS 280-328561/2-A 96 91 Surrogate Acceptance Limits OTPH = o-terphenyl (Surr) 45-130 OTC = n-octacosane 25-162 TestAmerica Burlington Page 80 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8081B Organochlorine Pesticides (GC) Lab Sample ID Client Sample ID TCX1 TCX2 DCB1 DCB2 %Rec %Rec %Rec %Rec 200-33702-1 DL U_WC_052516_01 DL 41X D 18X D 200-33702-1 U_WC_052516_01 75 74 200-33702-2 DL U_WC_052516_02 DL 57X D 46X D 200-33702-2 U_WC_052516_02 66X 63 200-33702-3 DL U_WC_052516_03 DL 25X D 3X D 200-33702-3 U_WC_052516_03 67X 58 200-33702-4 DL U_WC_052516_04 DL 69X D 40X D 200-33702-4 U_WC_052516_04 79 60 MB 280-328536/1-A 101 101 MB 280-328536/1-A 99 110 LCS 280-328536/2-A 98 98 LCS 280-328536/2-A 97 104 LCS 280-328536/4-A 95 95 Surrogate Acceptance Limits TCX = Tetrachloro-m-xylene 70-125 DCB = DCB Decachlorobiphenyl 55-130 TestAmerica Burlington Page 81 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8082A Polychlorinated Biphenyls (PCBs) by Gas Chromatography TCX1 DCB1 Lab Sample ID Client Sample ID %Rec %Rec 200-33702-1 U_WC_052516_01 90 97 200-33702-2 U_WC_052516_02 94 110 200-33702-3 U_WC_052516_03 83 100 200-33702-4 U_WC_052516_04 78 78 MB 280-328536/1-A 98 89 LCS 280-328536/3-A 99 105 Surrogate Acceptance Limits TCX = Tetrachloro-m-xylene 44-130 DCB = DCB Decachlorobiphenyl 60-125 TestAmerica Burlington Page 82 of 123

Quality Control Results Client: Dawson Technical, LLC Job Number: 200-33702-1 Sdg Number: 33702 Surrogate Recovery Report 8151A Herbicides (GC) Lab Sample ID Client Sample ID DCPA1 %Rec 200-33702-1 U_WC_052516_01 44D 200-33702-2 U_WC_052516_02 59D 200-33702-3 U_WC_052516_03 34D 200-33702-4 U_WC_052516_04 49D MB 280-328790/1-A 63 LCS 280-328790/2-A 66 Surrogate Acceptance Limits DCPA = 2,4-Dichlorophenylacetic acid 27-122 TestAmerica Burlington Page 83 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-327871/1-A Analysis Batch: 280-329202 SMS_D Solid 280-327871 D16258.D Leach Batch: 30 g 06/09/2016 1837 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Analyte Result Qual MDL RL N-Nitrosodimethylamine Aniline Phenol Bis(2-chloroethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzyl alcohol 1,2-Dichlorobenzene 2-Methylphenol 2,2'-oxybis[1-chloropropane] 3 & 4 Methylphenol N-Nitrosodi-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Benzoic acid Bis(2-chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Naphthalene 4-Chloroaniline Hexachlorobutadiene 4-Chloro-3-methylphenol 2-Methylnaphthalene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol 2-Chloronaphthalene 2-Nitroaniline Dimethyl phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene Diethyl phthalate Fluorene 4-Chlorophenyl phenyl ether 5-Nitro-o-toluidine 520 U 37 520 390 U 130 390 U 18 U 17 U 21 U 12 U 14 U 10 U 22 U 13 U 23 U 33 U 31 U 21 U 22 U 17 U 10 U 66 1600 U 1600 U 23 U 10 U 28 U 31 U 82 U 10 U 66 U 19 1700 U 50 1700 U 10 U 10 U 10 1600 U 50 1600 U 23 U 17 U 28 1600 U 73 1600 U 10 1600 U 1600 1600 U 97 1600 U 20 U 66 660 U 26 660 U 18 U 21 660 U 62 660 TestAmerica Burlington Page 84 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-327871/1-A Analysis Batch: 280-329202 SMS_D Solid 280-327871 D16258.D Leach Batch: 30 g 06/09/2016 1837 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Analyte Result Qual MDL RL 4-Nitroaniline 4,6-Dinitro-2-methylphenol N-Nitrosodiphenylamine 4-Bromophenyl phenyl ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-n-butyl phthalate Fluoranthene Pyrene Butyl benzyl phthalate Benzo[a]anthracene Chrysene 3,3'-Dichlorobenzidine Bis(2-ethylhexyl) phthalate Di-n-octyl phthalate Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-cd]pyrene Dibenz(a,h)anthracene Benzo[g,h,i]perylene 1600 U 73 1600 1600 U 1600 U 21 U 19 U 29 1600 U 1600 U 17 U 17 U 36 U 29 U 36 400 U 12 400 U 43 U 20 U 27 1600 U 90 1600 U 46 U 14 U 26 U 40 U 20 U 22 U 19 U 16 Surrogate % Rec Acceptance Limits 2-Fluorophenol (Surr) 81 35-105 Phenol-d5 (Surr) 79 40-100 Nitrobenzene-d5 (Surr) 76 35-100 2-Fluorobiphenyl 81 45-105 2,4,6-Tribromophenol (Surr) 84 35-125 Terphenyl-d14 (Surr) 92 30-125 Method Blank TICs- Batch: 280-327871 Cas Number Analyte RT Est. Result (ug/ Qual 106-42-3 p-xylene 3.56 883 J N Unknown 3.24 5190 J TestAmerica Burlington Page 85 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-327871/2-A Analysis Batch: 280-329202 SMS_D Client Matrix: Solid Leach Batch: 280-327871 D16259.D 30 g 06/09/2016 1906 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Leach Date: Analyte Spike Amount Result % Rec. Limit Qual N-Nitrosodimethylamine Aniline Phenol Bis(2-chloroethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzyl alcohol 1,2-Dichlorobenzene 2-Methylphenol 2,2'-oxybis[1-chloropropane] 3 & 4 Methylphenol N-Nitrosodi-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol Benzoic acid Bis(2-chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichlorobenzene Naphthalene 4-Chloroaniline Hexachlorobutadiene 4-Chloro-3-methylphenol 2-Methylnaphthalene Hexachlorocyclopentadiene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenol 2-Chloronaphthalene 2-Nitroaniline Dimethyl phthalate Acenaphthylene 2,6-Dinitrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene 2670 1760 66 20-115 2670 1520 57 10-120 2670 2160 81 40-100 2670 2040 77 40-105 2670 2130 80 45-105 2670 1950 73 40-100 2670 2010 75 35-105 2670 2070 78 20-125 2670 1970 74 45-95 2670 2110 79 40-105 2670 1980 74 20-115 2670 2190 82 40-105 2670 2110 79 40-115 2670 1980 74 35-110 2670 2100 79 40-115 2670 1980 74 45-110 2670 2210 83 40-110 2670 2220 83 30-105 2670 2190 82 10-110 2670 2070 78 45-110 2670 2320 87 45-110 2670 2170 81 45-110 2670 2100 79 40-105 2670 1660 62 24-120 2670 2200 82 40-115 2670 2320 87 45-115 2670 2190 82 45-105 2670 1940 73 35-123 2670 2440 92 45-110 2670 2360 88 50-110 2670 2180 82 45-105 2670 2280 86 45-120 2670 2360 88 50-110 2670 2170 81 45-105 2670 2340 88 50-110 2670 1840 69 25-110 2670 2270 85 45-110 5 4640 87 15-130 5 5210 98 15-140 2670 2300 86 50-105 2670 2390 90 50-115 TestAmerica Burlington Page 86 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327871 Method: 8270C Preparation: 3550C Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-327871/2-A Analysis Batch: 280-329202 SMS_D Client Matrix: Solid Leach Batch: 280-327871 D16259.D 30 g 06/09/2016 1906 Units: ug/kg 1 ml 06/01/2016 1042 Injection Volume: 0.5 ul Leach Date: Analyte Spike Amount Result % Rec. Limit Qual Diethyl phthalate Fluorene 4-Chlorophenyl phenyl ether 4-Nitroaniline 4,6-Dinitro-2-methylphenol N-Nitrosodiphenylamine 4-Bromophenyl phenyl ether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Carbazole Di-n-butyl phthalate Fluoranthene Pyrene Butyl benzyl phthalate Benzo[a]anthracene Chrysene 3,3'-Dichlorobenzidine Bis(2-ethylhexyl) phthalate Di-n-octyl phthalate Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-cd]pyrene Dibenz(a,h)anthracene Benzo[g,h,i]perylene 2670 2400 90 50-115 2670 2320 87 50-110 2670 2320 87 45-110 2670 2320 87 35-115 5 4790 90 30-135 2670 2 87 50-115 2670 2410 91 45-115 2670 2370 89 45-120 5 4710 88 25-120 2670 2340 88 50-110 2670 2350 88 55-105 2670 2 87 45-115 2670 2370 89 55-110 2670 2340 88 55-115 2670 2420 91 45-125 2670 2390 90 50-125 2670 2360 88 50-110 2670 2310 87 55-110 2670 2230 84 22-120 2670 2290 86 45-125 2670 2280 85 40-130 2670 2350 88 45-115 2670 2410 90 45-125 2670 2370 89 50-110 2670 2290 86 40-120 2670 2240 84 40-125 2670 2240 84 40-125 Surrogate % Rec Acceptance Limits 2-Fluorophenol (Surr) 81 35-105 Phenol-d5 (Surr) 81 40-100 Nitrobenzene-d5 (Surr) 77 35-100 2-Fluorobiphenyl 81 45-105 2,4,6-Tribromophenol (Surr) 95 35-125 Terphenyl-d14 (Surr) 94 30-125 TestAmerica Burlington Page 87 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328537 Method: 8015B GRO DOD Preparation: 5035 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-328537/1-A Analysis Batch: 280-328547 VGC_Q Solid 280-328537 020F2001.D Leach Batch: 5.00 g 06/06/2016 1931 Units: mg/kg 5 ml 06/06/2016 1141 Injection Volume: 5 ml Column ID: PRIMARY Analyte Result Qual MDL RL C6-C10 1.2 U 0.33 1.2 Surrogate % Rec Acceptance Limits a,a,a-trifluorotoluene 84 77-123 Lab Control Sample/ Lab Control Sample Duplicate Recovery Report - Batch: 280-328537 Method: 8015B GRO DOD Preparation: 5035 LCS Lab Sample ID: LCS 280-328537/2-A 06/06/2016 1956 06/06/2016 1141 Leach Date: Analysis Batch: Leach Batch: Units: 280-328547 280-328537 mg/kg Injection Volume: Column ID: VGC_Q 021F2101.D 5.00 g 5 ml 5 ml PRIMARY LCSD Lab Sample ID: LCSD 280-328537/3-A 06/06/2016 2021 06/06/2016 1141 Leach Date: Analysis Batch: Leach Batch: Units: 280-328547 280-328537 mg/kg Injection Volume: Column ID: VGC_Q 022F2201.D 5.00 g 5 ml 5 ml PRIMARY Analyte LCS % Rec. LCSD Limit RPD RPD Limit LCS Qual LCSD Qual C6-C10 93 101 79-122 8 30 Surrogate LCS % Rec LCSD % Rec Acceptance Limits a,a,a-trifluorotoluene 89 96 77-123 TestAmerica Burlington Page 88 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328561 Method: 8015B DRO Preparation: 3546 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-328561/1-A Analysis Batch: 280-328891 SGC_U2a Solid 280-328561 007F0601.D Leach Batch: 30 g 06/08/2016 1107 Units: mg/kg 1 ml 06/06/2016 1511 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL Diesel Range Organics [C10-C28] 0.728 J 0.68 4.0 Surrogate % Rec Acceptance Limits o-terphenyl (Surr) 92 45-130 n-octacosane 92 25-162 Lab Control Sample - Batch: 280-328561 Method: 8015B DRO Preparation: 3546 Lab Sample ID: LCS 280-328561/2-A Analysis Batch: 280-328891 SGC_U2a Client Matrix: Solid Leach Batch: 280-328561 008F0701.D 30 g 06/08/2016 1132 Units: mg/kg 1 ml 06/06/2016 1511 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual Diesel Range Organics [C10-C28] 66.7 56.9 85 38-132 Surrogate % Rec Acceptance Limits o-terphenyl (Surr) 96 45-130 n-octacosane 91 25-162 TestAmerica Burlington Page 89 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-328536/1-A Analysis Batch: 280-329032 SGC_P1 Solid 280-328536 06090014.D Leach Batch: 30 g 06/09/2016 0316 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone Chlordane (technical) Toxaphene 1.7 U 0.21 1.7 1.7 U 0.46 1.7 1.7 U 0.66 1.7 1.7 U 0.40 1.7 1.7 U 0.21 1.7 1.7 U 0.25 1.7 1.7 U 0.43 1.7 1.7 U 0.27 1.7 1.7 U 0.32 1.7 1.7 U 0.24 1.7 1.7 U 0.18 1.7 1.7 U 0.21 1.7 1.7 U 0.31 1.7 1.7 U 0.55 1.7 1.7 U 0.29 1.7 2.0 U 0.59 2.0 1.7 U 0.17 1.7 3.3 U 0.45 3.3 1.7 U 0.28 1.7 1.7 U 0.49 1.7 25 U 7.8 25 170 U 16 170 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 99 70-125 DCB Decachlorobiphenyl 110 55-130 TestAmerica Burlington Page 90 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-328536/1-A Analysis Batch: 280-329199 SGC_C Solid 280-328536 06090014.D Leach Batch: 30 g 06/09/2016 2025 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone Chlordane (technical) Toxaphene 1.7 U 0.21 1.7 1.7 U 0.46 1.7 1.7 U 0.66 1.7 0.569 J 0.40 1.7 1.7 U 0.21 1.7 1.7 U 0.25 1.7 1.7 U 0.43 1.7 1.7 U 0.27 1.7 1.7 U 0.32 1.7 1.7 U 0.24 1.7 1.7 U 0.18 1.7 1.7 U 0.21 1.7 1.7 U 0.31 1.7 1.7 U 0.55 1.7 1.7 U 0.29 1.7 2.0 U 0.59 2.0 1.7 U 0.17 1.7 3.3 U 0.45 3.3 1.7 U 0.28 1.7 1.7 U 0.49 1.7 25 U 7.8 25 170 U 16 170 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 101 70-125 DCB Decachlorobiphenyl 101 55-130 TestAmerica Burlington Page 91 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-328536/2-A Analysis Batch: 280-329032 SGC_P1 Client Matrix: Solid Leach Batch: 280-328536 06090015.D 30 g 06/09/2016 0333 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone 16.7 15.1 91 60-125 16.7 15.1 91 60-125 16.7 14.9 90 60-125 16.7 15.2 91 55-130 16.7 15.6 94 50-140 16.7 15.2 91 45-140 16.7 15.5 93 65-130 16.7 15.4 92 65-125 16.7 15.5 93 65-120 16.7 15.5 93 70-125 16.7 15.4 92 15-135 16.7 15.8 95 65-125 16.7 16.4 99 60-135 16.7 15.6 94 30-135 16.7 15.7 94 35-140 16.7 16.1 96 45-140 16.7 15.2 91 35-145 16.7 15.6 94 55-145 16.7 15.8 95 60-135 16.7 14.9 90 65-135 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 97 70-125 DCB Decachlorobiphenyl 104 55-130 Lab Control Sample - Batch: 280-328536 Method: 8081B Preparation: 3546 Lab Sample ID: LCS 280-328536/2-A Analysis Batch: 280-329199 SGC_C Client Matrix: Solid Leach Batch: 280-328536 06090015.D 30 g 06/09/2016 2043 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual alpha-bhc gamma-bhc (Lindane) beta-bhc delta-bhc 16.7 15.6 94 60-125 16.7 15.8 95 60-125 16.7 16.1 97 60-125 16.7 15.0 90 55-130 TestAmerica Burlington Page 92 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-328536 Method: 8081B Preparation: 3546 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-328536/2-A Analysis Batch: 280-329199 SGC_C Client Matrix: Solid Leach Batch: 280-328536 06090015.D 30 g 06/09/2016 2043 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual Heptachlor Aldrin Heptachlor epoxide gamma-chlordane alpha-chlordane 4,4'-DDE Endosulfan I Dieldrin Endrin 4,4'-DDD Endosulfan II 4,4'-DDT Endrin aldehyde Methoxychlor Endosulfan sulfate Endrin ketone 16.7 16.3 98 50-140 16.7 15.6 94 45-140 16.7 15.9 95 65-130 16.7 15.9 96 65-125 16.7 15.6 94 65-120 16.7 16.1 97 70-125 16.7 16.1 97 15-135 16.7 15.6 93 65-125 16.7 16.6 99 60-135 16.7 16.0 96 30-135 16.7 16.0 96 35-140 16.7 17.5 105 45-140 16.7 16.1 97 35-145 16.7 17.6 105 55-145 16.7 16.1 96 60-135 16.7 15.4 93 65-135 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 98 70-125 DCB Decachlorobiphenyl 98 55-130 Lab Control Sample - Batch: 280-328536 Method: 8081B Preparation: 3546 Lab Sample ID: LCS 280-328536/4-A Analysis Batch: 280-329199 SGC_C Client Matrix: Solid Leach Batch: 280-328536 06090016.D 30 g 06/09/2016 2100 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual Toxaphene 66.7 41.2 62 51-139 J Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 95 70-125 DCB Decachlorobiphenyl 95 55-130 TestAmerica Burlington Page 93 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328536 Method: 8082A Preparation: 3546 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-328536/1-A Analysis Batch: 280-328868 SGC_W Solid 280-328536 06081604.D Leach Batch: 30 g 06/08/2016 1024 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL PCB-1016 PCB-1221 PCB-1232 PCB-1242 PCB-1248 PCB-1254 PCB-1260 PCB-1262 PCB-1268 33 U 5.1 33 47 U 16 47 33 U 5.1 33 33 U 9.1 33 33 U 5.6 33 33 U 5.5 33 33 U 2.7 33 33 U 12 33 33 U 4.0 33 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 98 44-130 DCB Decachlorobiphenyl 89 60-125 Lab Control Sample - Batch: 280-328536 Method: 8082A Preparation: 3546 Lab Sample ID: LCS 280-328536/3-A Analysis Batch: 280-328868 SGC_W Client Matrix: Solid Leach Batch: 280-328536 06081605.D 30 g 06/08/2016 1047 Units: ug/kg 10 ml 06/06/2016 1301 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual PCB-1016 PCB-1260 66.7 78.9 118 40-140 66.7 76.2 114 60-130 Surrogate % Rec Acceptance Limits Tetrachloro-m-xylene 99 44-130 DCB Decachlorobiphenyl 105 60-125 TestAmerica Burlington Page 94 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328790 Method: 8151A Preparation: 8151A Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-328790/1-A Analysis Batch: 280-329641 SGC_M Solid 280-328790 06140011.D Leach Batch: 50 g 06/14/2016 1227 Units: ug/kg 10 ml 06/07/2016 2300 Injection Volume: 1 ul Column ID: PRIMARY Analyte Result Qual MDL RL 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) 80 U 14 80 40 U 1.4 40 80 U 7.5 80 40 U 1.4 40 80 U 3.2 80 8000 U 2000 8000 8000 U 2000 8000 20 U 2.3 20 20 U 1.4 20 Surrogate % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 63 27-122 Lab Control Sample - Batch: 280-328790 Method: 8151A Preparation: 8151A Lab Sample ID: LCS 280-328790/2-A Analysis Batch: 280-329641 SGC_M Client Matrix: Solid Leach Batch: 280-328790 06140012.D 50 g 06/14/2016 1250 Units: ug/kg 10 ml 06/07/2016 2300 Injection Volume: 1 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual 2,4-D Dalapon 2,4-DB Dicamba Dichlorprop MCPA MCPP 2,4,5-T Silvex (2,4,5-TP) 100 63.7 64 35-145 J 100 59.8 60 35-105 100 74.8 75 50-155 J 100 62.0 62 55-110 100 61.8 62 75-140 J * 10000 5260 53 28-135 J 10000 7620 76 35-143 J 100 67.1 67 45-135 100 64.1 64 45-125 Surrogate % Rec Acceptance Limits 2,4-Dichlorophenylacetic acid 66 27-122 TestAmerica Burlington Page 95 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 200-105051 Method: 8B Preparation: 8 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 200-105051/1-A Analysis Batch: 200-105737 CH1208 Solid 200-105051 20423004.D Leach Batch: 10.01 g 06/15/2016 1248 Units: ug/kg 100 ml 06/07/2016 1640 Injection Volume: 150 ul Column ID: PRIMARY Analyte Result Qual MDL RL 2,6-diamino-4-nitrotoluene HMX 2,4-diamino-6-nitrotoluene RDX Picric acid 1,3,5-Trinitrobenzene 1,3-Dinitrobenzene Nitrobenzene Tetryl Nitroglycerin 2,4,6-Trinitrotoluene 4-Amino-2,6-dinitrotoluene 2-Amino-4,6-dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrotoluene 2-Nitrotoluene 4-Nitrotoluene 3-Nitrotoluene PETN 99.9 U 25.0 99.9 99.9 U 7.69 99.9 99.9 U 25.0 99.9 99.9 U 17.0 99.9 99.9 U 1 99.9 99.9 U 25.0 99.9 99.9 U 12.0 99.9 99.9 U 15.0 99.9 99.9 U 30.0 99.9 2000 U 569 2000 99.9 U 15.0 99.9 99.9 U 16.0 99.9 99.9 U 14.0 99.9 99.9 U 15.0 99.9 99.9 U 30.0 99.9 99.9 U 24.0 99.9 99.9 U 44.0 99.9 99.9 U 42.0 99.9 5000 U 1500 5000 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 98 55-145 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 105 55-145 TestAmerica Burlington Page 96 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 200-105051 Method: 8B Preparation: 8 Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 200-105051/2-A Analysis Batch: 200-105737 CH1208 Client Matrix: Solid Leach Batch: 200-105051 20423005.D 9.99 g 06/15/2016 1325 Units: ug/kg 100 ml 06/07/2016 1640 Injection Volume: 150 ul Leach Date: Column ID: PRIMARY Analyte Spike Amount Result % Rec. Limit Qual 2,6-diamino-4-nitrotoluene HMX 2,4-diamino-6-nitrotoluene RDX Picric acid 1,3,5-Trinitrobenzene 1,3-Dinitrobenzene Nitrobenzene Tetryl Nitroglycerin 2,4,6-Trinitrotoluene 4-Amino-2,6-dinitrotoluene 2-Amino-4,6-dinitrotoluene 2,6-Dinitrotoluene 2,4-Dinitrotoluene 2-Nitrotoluene 4-Nitrotoluene 3-Nitrotoluene PETN 2000 1961 98 30-180 2000 1954 98 80-125 2000 1975 99 20-180 2000 1985 99 80-125 2000 2120 106 80-135 2000 1949 97 80-120 2000 1999 100 80-120 2000 1893 95 80-120 2000 1961 98 25-165 p 40000 37900 95 80-125 2000 1953 98 80-120 2000 1971 98 80-120 2000 1903 95 80-130 2000 1950 97 80-120 2000 2081 104 50-160 p 2000 1951 97 70-125 2000 1923 96 25-185 p 2000 1922 96 40-165 p 40000 35980 90 80-125 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 104 55-145 Surrogate % Rec Acceptance Limits 1,2-Dinitrobenzene 105 55-145 TestAmerica Burlington Page 97 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 200-105598 Method: 6850 Preparation: Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 200-105469/1-A Solid 06/10/2016 1301 06/08/2016 1033 Analysis Batch: Leach Batch: Units: 200-105598 200-105469 ug/kg Injection Volume: LC3062 P061016A03.d 10 ml 50 ul Analyte Result Qual MDL RL Perchlorate 0.79 U 0.058 0.79 Lab Control Sample - Batch: 200-105598 Method: 6850 Preparation: Lab Sample ID: LCS 200-105469/2-A Analysis Batch: 200-105598 LC3062 Client Matrix: Solid Leach Batch: 200-105469 P061016A04.d 10 ml 06/10/2016 1316 Units: ug/kg Injection Volume: 50 ul Leach Date: 06/08/2016 1033 Analyte Spike Amount Result % Rec. Limit Qual Perchlorate 0.793 0.908 115 80-120 TestAmerica Burlington Page 98 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327633 Method: 6010C Preparation: 3050B Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: MB 280-327633/1-A 06/02/2016 0024 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328052 280-327633 mg/kg MT_026 26C060116.asc 1 g 100 ml Analyte Result Qual MDL RL Arsenic Barium Cadmium Chromium Lead Copper Zinc 2.5 U 0.66 2.5 0.131 J 0.076 2.0 0.50 U 0.041 0.50 0.0600 J 0.058 3.5 0.90 U 0.27 0.90 5.0 U 0.22 5.0 8.0 U 0.40 8.0 Method Blank - Batch: 280-327633 Method: 6010C Preparation: 3050B Lab Sample ID: MB 280-327633/1-A 06/02/2016 1614 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328232 280-327633 mg/kg MT_026 26A060216.asc 1 g 100 ml Analyte Result Qual MDL RL Selenium Silver 3.0 U 0.86 3.0 1.5 U 0.16 1.5 TestAmerica Burlington Page 99 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327633 Method: 6010C Preparation: 3050B Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-327633/2-A Client Matrix: Solid 06/02/2016 0027 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328052 280-327633 mg/kg MT_026 26C060116.asc 1 g 100 ml Analyte Spike Amount Result % Rec. Limit Qual Arsenic Barium Cadmium Chromium Lead Copper Zinc 100 100.7 101 80-120 200 199.4 100 80-120 10.0 10.28 103 80-120 20.0 20.48 102 80-120 50.0 49.55 99 80-120 25.0 24.15 97 80-120 50.0 46.00 92 80-120 Lab Control Sample - Batch: 280-327633 Method: 6010C Preparation: 3050B Lab Sample ID: LCS 280-327633/2-A Client Matrix: Solid 06/02/2016 1617 06/01/2016 1435 Leach Date: Analysis Batch: Leach Batch: Units: 280-328232 280-327633 mg/kg MT_026 26A060216.asc 1 g 100 ml Analyte Spike Amount Result % Rec. Limit Qual Selenium Silver 200 196.9 98 80-120 5.00 4.90 98 75-120 TestAmerica Burlington Page 100 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327680 Method: 7471B Preparation: 7471B Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: MB 280-327680/1-A 05/31/2016 1738 05/31/2016 1220 Leach Date: Analysis Batch: Leach Batch: Units: 280-327855 280-327680 ug/kg MT_034 160531ba.txt 0.6 g 50 ml Analyte Result Qual MDL RL Hg 17.0 U 5.5 17.0 Lab Control Sample - Batch: 280-327680 Method: 7471B Preparation: 7471B Lab Sample ID: LCS 280-327680/2-A Client Matrix: Solid 05/31/2016 1740 05/31/2016 1220 Leach Date: Analysis Batch: Leach Batch: Units: 280-327855 280-327680 ug/kg MT_034 160531ba.txt 0.6 g 50 ml Analyte Spike Amount Result % Rec. Limit Qual Hg 417 409.5 98 80-120 TestAmerica Burlington Page 101 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 680-437160 Method: 1030 Preparation: Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 680-437160/1 Solid 06/13/2016 1423 Analysis Batch: Leach Batch: Units: 680-437160 mm/sec No Equipment Assigned 100 g Analyte Result Qual MDL RL Ignitability nb Lab Control Sample/ Lab Control Sample Duplicate Recovery Report - Batch: 680-437160 Method: 1030 Preparation: LCS Lab Sample ID: LCS 680-437160/2 06/13/2016 1423 Leach Date: Analysis Batch: Leach Batch: Units: 680-437160 mm/sec No Equipment Assigned 100 g LCSD Lab Sample ID: LCSD 680-437160/23 06/13/2016 1730 Leach Date: Analysis Batch: Leach Batch: Units: 680-437160 mm/sec No Equipment Assigned 100 g Analyte LCS % Rec. LCSD Limit RPD RPD Limit LCS Qual LCSD Qual Ignitability 100 100 75-125 3 TestAmerica Burlington Page 102 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-328663 Method: 9012B Preparation: 9012B Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: MB 280-328663/4-A 06/07/2016 1257 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Result Qual MDL RL Cyanide, Total 0.50 U 0.10 0.50 TestAmerica Burlington Page 103 of 123

Quality Control Results Client: Dawson Technical, LLC High Level Control Sample - Batch: 280-328663 Method: 9012B Preparation: 9012B Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: HLCS 280-328663/1-A Client Matrix: Solid 2.0 06/07/2016 1252 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 20.0 20.91 105 90-110 Low Level Control Sample - Batch: 280-328663 Method: 9012B Preparation: 9012B Lab Sample ID: LLCS 280-328663/2-A Client Matrix: Solid 06/07/2016 1253 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 5.00 5.40 108 51-150 Lab Control Sample - Batch: 280-328663 Method: 9012B Preparation: 9012B Lab Sample ID: LCS 280-328663/3-A Client Matrix: Solid 06/07/2016 1340 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: Units: 280-328764 280-328663 mg/kg WC_Alp 1 C:\FLOW_4\C060716.RS 1 ml 50 ml Analyte Spike Amount Result % Rec. Limit Qual Cyanide, Total 5.00 5.48 110 76-120 TestAmerica Burlington Page 104 of 123

Quality Control Results Client: Dawson Technical, LLC Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: 280-328663 Method: 9012B Preparation: 9012B Job Number: 200-33702-1 Sdg Number: 33702 MS Lab Sample ID: 200-33702-3 06/07/2016 1327 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: 280-328764 280-328663 WC_Alp 1 C:\FLOW_4\C060716.RS 275 ml 50 ml MSD Lab Sample ID: 200-33702-3 06/07/2016 1328 06/07/2016 0616 Leach Date: Analysis Batch: Leach Batch: 280-328764 280-328663 WC_Alp 1 C:\FLOW_4\C060716.RS 647 ml 50 ml Analyte Cyanide, Total % Rec. MS MSD Limit RPD RPD Limit MS Qual MSD Qual 108 110 76-120 2 10 TestAmerica Burlington Page 105 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-327935 Method: 9034 Preparation: 9030B Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: MB 280-327935/2-A 06/01/2016 1457 06/01/2016 1143 Leach Date: Analysis Batch: Leach Batch: Units: 280-327982 280-327935 mg/kg No Equipment Assigned 50.04 g 250 ml Analyte Result Qual MDL RL Sulfide 5.0 U 2.4 5.0 Lab Control Sample - Batch: 280-327935 Method: 9034 Preparation: 9030B Lab Sample ID: LCS 280-327935/1-A Client Matrix: Solid 06/01/2016 1457 06/01/2016 1143 Leach Date: Analysis Batch: Leach Batch: Units: 280-327982 280-327935 mg/kg No Equipment Assigned 50.08 g 250 ml Analyte Spike Amount Result % Rec. Limit Qual Sulfide 87.5 78.27 89 38-104 TestAmerica Burlington Page 106 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-327788 Method: 9045D Preparation: Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-327740/1-A Client Matrix: Solid 05/31/2016 1624 Leach Date: 05/31/2016 1203 Analysis Batch: Leach Batch: Units: 280-327788 280-327740 SU No Equipment Assigned 1 ml 1 ml Analyte Spike Amount Result % Rec. Limit Qual ph adj. to 25 deg C-Soluble 7.00 7.090 101 97-103 TestAmerica Burlington Page 107 of 123

Quality Control Results Client: Dawson Technical, LLC Lab Control Sample - Batch: 280-328591 Method: 9045D Preparation: Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: LCS 280-328576/1-A Client Matrix: Solid 06/06/2016 1739 Leach Date: 06/06/2016 1552 Analysis Batch: Leach Batch: Units: 280-328591 280-328576 SU No Equipment Assigned 1 ml 1 ml Analyte Spike Amount Result % Rec. Limit Qual ph adj. to 25 deg C-Soluble 7.00 7.000 100 97-103 Duplicate - Batch: 280-328591 Method: 9045D Preparation: Lab Sample ID: 200-33702-1 06/06/2016 1739 Leach Date: 06/06/2016 1553 Analysis Batch: Leach Batch: Units: 280-328591 280-328576 Degrees C No Equipment Assigned 1 ml 1 ml Analyte Sample Result/Qual Result RPD Limit Qual Temperature-Soluble 23.1 23.20 0.4 5 Duplicate - Batch: 280-328591 Method: 9045D Preparation: Lab Sample ID: 200-33702-1 06/06/2016 1739 Leach Date: 06/06/2016 1553 Analysis Batch: Leach Batch: Units: 280-328591 280-328576 SU No Equipment Assigned 1 ml 1 ml Analyte Sample Result/Qual Result RPD Limit Qual ph adj. to 25 deg C-Soluble 5.00 5.020 0.4 5 TestAmerica Burlington Page 108 of 123

Quality Control Results Client: Dawson Technical, LLC Duplicate - Batch: 280-327539 Method: Moisture Preparation: Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: 200-33702-2 05/28/2016 1013 Leach Date: Analysis Batch: Leach Batch: Units: 280-327539 % No Equipment Assigned Analyte Sample Result/Qual Result RPD Limit Qual Percent Moisture Percent Solids 13.5 14.2 6 20 86.5 85.8 0.9 20 TestAmerica Burlington Page 109 of 123

Quality Control Results Client: Dawson Technical, LLC Method Blank - Batch: 280-305 Method: SM 2510B Preparation: Job Number: 200-33702-1 Sdg Number: 33702 Lab Sample ID: Client Matrix: Leach Date: MB 280-467/4-A Solid 06/17/2016 2051 06/17/2016 1821 Analysis Batch: Leach Batch: Units: 280-305 280-467 umhos/cm No Equipment Assigned 25 ml Analyte Result Qual MDL RL Specific Conductance-Soluble 2.00 U 2.00 2.00 Lab Control Sample - Batch: 280-305 Method: SM 2510B Preparation: Lab Sample ID: LCS 280-467/3-A Client Matrix: Solid 06/17/2016 2051 Leach Date: 06/17/2016 1821 Analysis Batch: Leach Batch: Units: 280-305 280-467 umhos/cm No Equipment Assigned 25 ml Analyte Spike Amount Result % Rec. Limit Qual Specific Conductance-Soluble 1410 1408 100 90-110 Duplicate - Batch: 280-305 Method: SM 2510B Preparation: Lab Sample ID: 200-33702-3 06/17/2016 2051 Leach Date: 06/17/2016 1823 Analysis Batch: Leach Batch: Units: 280-305 280-467 umhos/cm No Equipment Assigned 25 ml Analyte Sample Result/Qual Result RPD Limit Qual Specific Conductance-Soluble 8.93 9.690 8 20 TestAmerica Burlington Page 110 of 123

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