ANALYTICAL REPORT. Job Number: Job Description: Old Douglas Harbor. For: PND Engineers, Inc West 36th Ave. Anchorage, AK 99503

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1 ANALYTICAL REPORT Job Number: Job Description: Old Douglas Harbor For: PND Engineers, Inc West 36th Ave. Anchorage, AK Attention: Ms. Jennifer Lundberg Katie Downie Project Manager II 05/31/2007 Project Manager: Katie Downie STL Seattle is a part of Severn Trent Laboratories, Inc. This report is issued solely for the use of the person or company to whom it is addressed. Any use, copying or disclosure other than by the intended recipient is unauthorized. If you have received this report in error, please notify the sender immediately at and destroy this report immediately. STL Seattle th Street East, Tacoma, WA Tel (253) Fax (253) Severn Trent Laboratories, Inc. Page 1 of 31

2 Case Narrative for job: Client: PND Engineers Date: 05/31/2007 The additional mercury analyses were requested on May 22, This was outside of the standard 28 day hold time for mercury in environmental samples, and the results have been flagged H. MERCURY Samples through , and were analyzed for mercury in accordance with EPA SW-846 Method 7471A. The samples were prepared on and analyzed on 05/25/2007, which was within outside method required holding times. Samples through , and required dilution prior to analysis. The amount of mercury in sample was more than four times the matrix spike amount, and the normal control limits do not apply. The recoveries of mercury in the LCS and LCSD were acceptable. No other difficulties were encountered during the mercury analyses. All other quality control parameters were within the acceptance limits. PERCENT SOLIDS Samples through were analyzed for percent solids in accordance with EPA Method Modified. The samples were analyzed on 03/30/2007 and 04/03/2007, which was within the required method holding time. No difficulties were encountered during the percent solids analyses. All quality control parameters were within the acceptance limits. Page 2 of 31

3 METHOD SUMMARY Client: PND Engineers, Inc. Job Number: Description Lab Location Method Preparation Method Matrix: Solid Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Mercury in Solid or Semi-Solid Waste (Manual STL SEA STL SEA SW A SW A LAB REFERENCES: STL SEA = STL Seattle METHOD REFERENCES: SW846 - "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. STL Seattle Page 3 of 31

4 SAMPLE SUMMARY Client: PND Engineers, Inc. Job Number: Lab Sample ID Client Sample ID Client Matrix Date/Time Sampled Date/Time Received PND07-5A Solid PND07-5C Solid PND07-6A Solid PND07-6C Solid PND07-7A Solid PND07-7C Solid 03/22/ /23/ /22/ /23/ /22/ /23/ /22/ /23/ /22/ /23/ /22/ /23/ STL Seattle Page 4 of 31

5 Analytical Data Client: PND Engineers, Inc. Job Number: Client Sample ID: PND07-5A Lab Sample ID: Client Matrix: Solid % Moisture: 31.5 Date Sampled: Date Received: 03/22/ /23/ A Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Method: Preparation: Dilution: Date Analyzed: Date Prepared: 7471A Analysis Batch: A Prep Batch: /25/ /24/ Instrument ID: Lab File ID: Initial Weight/Volume: Final Weight/Volume: SEA029 N/A g 50 ml Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Mercury 3.5 H STL Seattle Page 5 of 31

6 Analytical Data Client: PND Engineers, Inc. Job Number: Client Sample ID: PND07-5C Lab Sample ID: Client Matrix: Solid % Moisture: 34.3 Date Sampled: Date Received: 03/22/ /23/ A Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Method: Preparation: Dilution: Date Analyzed: Date Prepared: 7471A Analysis Batch: A Prep Batch: /25/ /24/ Instrument ID: Lab File ID: Initial Weight/Volume: Final Weight/Volume: SEA029 N/A g 50 ml Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Mercury 3.9 H STL Seattle Page 6 of 31

7 Analytical Data Client: PND Engineers, Inc. Job Number: Client Sample ID: PND07-6A Lab Sample ID: Client Matrix: Solid % Moisture: 31.1 Date Sampled: Date Received: 03/22/ /23/ A Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Method: Preparation: Dilution: Date Analyzed: Date Prepared: 7471A Analysis Batch: A Prep Batch: /25/ /24/ Instrument ID: Lab File ID: Initial Weight/Volume: Final Weight/Volume: SEA029 N/A g 50 ml Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Mercury 2.7 H STL Seattle Page 7 of 31

8 Analytical Data Client: PND Engineers, Inc. Job Number: Client Sample ID: PND07-6C Lab Sample ID: Client Matrix: Solid % Moisture: 27.7 Date Sampled: Date Received: 03/22/ /23/ A Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Method: Preparation: Dilution: Date Analyzed: Date Prepared: 7471A Analysis Batch: A Prep Batch: /25/ /24/ Instrument ID: Lab File ID: Initial Weight/Volume: Final Weight/Volume: SEA029 N/A g 50 ml Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Mercury 1.9 H STL Seattle Page 8 of 31

9 Analytical Data Client: PND Engineers, Inc. Job Number: Client Sample ID: PND07-7A Lab Sample ID: Client Matrix: Solid % Moisture: 33.9 Date Sampled: Date Received: 03/22/ /23/ A Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Method: Preparation: Dilution: Date Analyzed: Date Prepared: 7471A Analysis Batch: A Prep Batch: /25/ /24/ Instrument ID: Lab File ID: Initial Weight/Volume: Final Weight/Volume: SEA029 N/A g 50 ml Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Mercury 2.1 H STL Seattle Page 9 of 31

10 Analytical Data Client: PND Engineers, Inc. Job Number: Client Sample ID: PND07-7C Lab Sample ID: Client Matrix: Solid % Moisture: 38.7 Date Sampled: Date Received: 03/22/ /23/ A Mercury in Solid or Semisolid Waste (Manual Cold Vapor Technique) Method: Preparation: Dilution: Date Analyzed: Date Prepared: 7471A Analysis Batch: A Prep Batch: /25/ /24/ Instrument ID: Lab File ID: Initial Weight/Volume: Final Weight/Volume: SEA029 N/A g 50 ml Analyte DryWt Corrected: Y Result (mg/kg) Qualifier MDL RL Mercury 1.7 H STL Seattle Page 10 of 31

11 Quality Control Results Client: PND Engineers, Inc. Job Number: QC Association Summary Report Lab Sample ID Client Sample ID Basis Client Matrix Method Prep Batch Metals Prep Batch: LCS /15-AA Lab Control Spike T Solid 7471A LCSD /16-AA Lab Control Spike Duplicate T Solid 7471A LCSSRM /17-AA LCS-Standard Reference Material T Solid 7471A MB /14-AA Method Blank T Solid 7471A PND07-5A T Solid 7471A DU Duplicate T Solid 7471A MS Matrix Spike T Solid 7471A MSD Matrix Spike Duplicate T Solid 7471A PND07-5C T Solid 7471A PND07-6A T Solid 7471A PND07-6C T Solid 7471A PND07-7A T Solid 7471A PND07-7C T Solid 7471A Analysis Batch: LCS /15-AA Lab Control Spike T Solid 7471A LCSD /16-AA Lab Control Spike Duplicate T Solid 7471A LCSSRM /17-AA LCS-Standard Reference Material T Solid 7471A MB /14-AA Method Blank T Solid 7471A PND07-5A T Solid 7471A DU Duplicate T Solid 7471A MS Matrix Spike T Solid 7471A MSD Matrix Spike Duplicate T Solid 7471A PND07-5C T Solid 7471A PND07-6A T Solid 7471A PND07-6C T Solid 7471A PND07-7A T Solid 7471A PND07-7C T Solid 7471A Report Basis T = Total STL Seattle Page 11 of 31

12 Quality Control Results Client: PND Engineers, Inc. Job Number: Method Blank - Batch: Method: 7471A Preparation: 7471A Lab Sample ID: MB /14-AA Client Matrix: Solid Dilution: 1.0 Date Analyzed: 05/25/ Date Prepared: 05/24/ Analysis Batch: Prep Batch: Units: mg/kg Instrument ID: Lab File ID: SEA029 N/A Initial Weight/Volume: Final Weight/Volume: 0.5 g 50 ml Analyte Result Qual MDL RL Mercury ND Laboratory Control/ Laboratory Control Duplicate Recovery Report - Batch: Method: 7471A Preparation: 7471A LCS Lab Sample ID: LCS /15-AA Client Matrix: Solid Dilution: 1.0 Date Analyzed: 05/25/ Date Prepared: 05/24/ Analysis Batch: Prep Batch: Units: mg/kg Instrument ID: SEA029 Lab File ID: N/A Initial Weight/Volume: 0.5 g Final Weight/Volume: 50 ml LCSD Lab Sample ID: LCSD Client Matrix: Solid Dilution: 1.0 Date Analyzed: 05/25/ Date Prepared: 05/24/ Analysis Batch: Prep Batch: Units: mg/kg Instrument ID: SEA029 Lab File ID: N/A Initial Weight/Volume: 0.5 g Final Weight/Volume: 50 ml Analyte LCS % Rec. LCSD Limit RPD RPD Limit LCS Qual LCSD Qual Mercury Calculations are performed before rounding to avoid round-off errors in calculated results. STL Seattle Page 12 of 31

13 Quality Control Results Client: PND Engineers, Inc. Job Number: Laboratory Control/ Laboratory Duplicate Data Report - Batch: Method: 7471A Preparation: 7471A LCS Lab Sample ID: LCS Units: mg/kg LCSD Lab Sample ID: LCSD Client Matrix: Solid Client Matrix: Solid Dilution: 1.0 Dilution: 1.0 Date Analyzed: 05/25/ Date Analyzed: 05/25/ Date Prepared: 05/24/ Date Prepared: 05/24/ Analyte LCS Spike Amount LCSD Spike Amount LCS Result/Qual LCSD Result/Qual Mercury Matrix Spike/ Matrix Spike Duplicate Recovery Report - Batch: Method: 7471A Preparation: 7471A MS Lab Sample ID: Client Matrix: Dilution: Date Analyzed: Date Prepared: Solid 20 05/25/ /24/ Analysis Batch: Prep Batch: Instrument ID: Lab File ID: SEA029 N/A Initial Weight/Volume: Final Weight/Volume: g 50 ml MSD Lab Sample ID: Client Matrix: Dilution: Date Analyzed: Date Prepared: Solid 20 05/25/ /24/ Analysis Batch: Prep Batch: Instrument ID: Lab File ID: SEA029 N/A Initial Weight/Volume: Final Weight/Volume: g 50 ml Analyte MS % Rec. MSD Limit RPD RPD Limit MS Qual MSD Qual Mercury Calculations are performed before rounding to avoid round-off errors in calculated results. STL Seattle Page 13 of 31

14 Quality Control Results Client: PND Engineers, Inc. Job Number: Matrix Spike/ Matrix Spike Duplicate Data Report - Batch: Method: 7471A Preparation: 7471A MS Lab Sample ID: Client Matrix: Dilution: Date Analyzed: Date Prepared: Units: mg/kg MSD Lab Sample ID: Solid Client Matrix: Solid 20 Dilution: 20 05/25/ Date Analyzed: 05/25/ /24/ Date Prepared: 05/24/ Analyte Mercury Sample Result/Qual MS Spike Amount MSD Spike Amount MS Result/Qual MSD Result/Qual Matrix Duplicate - Batch: Method: 7471A Preparation: 7471A Lab Sample ID: Client Matrix: Solid Dilution: 20 Date Analyzed: 05/25/ Date Prepared: 05/24/ Analysis Batch: Prep Batch: Units: mg/kg Instrument ID: Lab File ID: SEA029 N/A Initial Weight/Volume: Final Weight/Volume: g 50 ml Analyte Sample Result/Qual Result RPD Limit Qual Mercury Calculations are performed before rounding to avoid round-off errors in calculated results. STL Seattle Page 14 of 31

15 DATA REPORTING QUALIFIERS Client: PND Engineers, Inc. Job Number: Lab Section Qualifier Description Metals 4 H MS, MSD: The analyte present in the original sample is 4 times greater than the matrix spike concentration; therefore, control limits are not applicable. Sample was prepped or analyzed beyond the specified holding time STL Seattle Page 15 of 31

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ANALYTICAL REPORT. Job Number: Job Description: Old Douglas Harbor. For: PND Engineers, Inc West 36th Ave. Anchorage, AK 99503

ANALYTICAL REPORT. Job Number: Job Description: Old Douglas Harbor. For: PND Engineers, Inc West 36th Ave. Anchorage, AK 99503 ANALYTICAL REPORT Job Number: 580-5407-2 Job Description: Old Douglas Harbor For: PND Engineers, Inc. 1506 West 36th Ave. Anchorage, AK 99503 Attention: Ms. Jennifer Lundberg Katie Downie Project Manager