If you have any questions concerning this report, please feel free to contact me. REPORT OF LABORATORY ANALYSIS

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1 #=CL# LIMS USE: FR - JILL LAVOIE LIMS OBJECT ID: July 16, 2015 Jill Lavoie Merrimack Village District - UCMR3 2 Greens Pond Road Merrimack, NH RE: Dear Jill Lavoie: Enclosed are the analytical results for sample(s) received by the laboratory on July 07, The results relate only to the samples included in this report. Results reported herein conform to the most current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Veronica Brown veronica.brown@pacelabs.com Project Manager Enclosures Page 1 of 11

2 #=CP# CERTIFICATIONS Ormond Beach Certification IDs, Alabama Certification #: Connecticut Certification #: PH-0216 Delaware Certification: FL NELAC Reciprocity Florida Certification #: E83079 Georgia Certification #: 955 Guam Certification: FL NELAC Reciprocity Hawaii Certification: FL NELAC Reciprocity Illinois Certification #: Indiana Certification: FL NELAC Reciprocity Kansas Certification #: E Kentucky Certification #: Louisiana Certification #: FL NELAC Reciprocity Louisiana Environmental Certificate #: Maryland Certification: #346 Michigan Certification #: 9911 Mississippi Certification: FL NELAC Reciprocity Missouri Certification #: 236 Montana Certification #: Cert 0074 Nebraska Certification: NE-OS Nevada Certification: FL NELAC Reciprocity New Hampshire Certification #: 2958 New York Certification #: North Carolina Environmental Certificate #: 667 North Carolina Certification #: Pennsylvania Certification #: Puerto Rico Certification #: FL01264 South Carolina Certification: # Tennessee Certification #: TN02974 Texas Certification: FL NELAC Reciprocity US Virgin Islands Certification: FL NELAC Reciprocity Virginia Environmental Certification #: West Virginia Certification #: 9962C Wisconsin Certification #: Wyoming (EPA Region 8): FL NELAC Reciprocity Page 2 of 11

3 #=SS# SAMPLE SUMMARY Lab ID Sample ID Matrix Date Collected Date Received 001 EP 502 Drinking Water 06/30/15 10:00 07/07/15 12: EP 502 Blank Drinking Water 06/30/15 10:00 07/07/15 12:37 Page 3 of 11

4 #=SA# SAMPLE ANALYTE COUNT Lab ID Sample ID Method Analysts Analytes Reported Laboratory 001 EP 502 EPA DRS 5 PASI-O 002 EP 502 Blank EPA DRS 5 PASI-O Page 4 of 11

5 #=AR# ANALYTICAL RESULTS Sample: EP 502 Lab ID: 001 Collected: 06/30/15 10:00 Received: 07/07/15 12:37 Matrix: Drinking Water Parameters Results Units PQL MDL DF Prepared Analyzed CAS No. Qual MET ICPMS UCMR Analytical Method: EPA Preparation Method: EPA Chromium 0.22 ug/l /08/15 14:50 07/14/15 20: Cobalt 0.64 I ug/l /08/15 14:50 07/14/15 20: Molybdenum <0.33 ug/l /08/15 14:50 07/14/15 20: N2 Strontium 133 ug/l /08/15 14:50 07/14/15 20: Vanadium 0.94 ug/l /08/15 14:50 07/14/15 20: N2 Date: 07/16/ :08 PM Page 5 of 11

6 #=AR# ANALYTICAL RESULTS Sample: EP 502 Blank Lab ID: 002 Collected: 06/30/15 10:00 Received: 07/07/15 12:37 Matrix: Drinking Water Parameters Results Units PQL MDL DF Prepared Analyzed CAS No. Qual MET ICPMS UCMR Analytical Method: EPA Preparation Method: EPA Chromium <0.067 ug/l /08/15 14:50 07/14/15 19: Cobalt <0.33 ug/l /08/15 14:50 07/14/15 19: Molybdenum <0.33 ug/l /08/15 14:50 07/14/15 19: N2 Strontium <0.10 ug/l /08/15 14:50 07/14/15 19: Vanadium <0.067 ug/l /08/15 14:50 07/14/15 19: N2 Date: 07/16/ :08 PM Page 6 of 11

7 #=QC# QUALITY CONTROL DATA QC Batch: QC Batch Method: MPRP/25132 EPA Associated Lab Samples: 001, 002 Analysis Method: Analysis Description: EPA MET UCMR Drinking Water METHOD BLANK: Associated Lab Samples: 001, 002 Parameter Units Blank Result Matrix: Water Reporting Limit Analyzed Chromium ug/l < /14/15 18:45 Cobalt ug/l < /14/15 18:45 Molybdenum ug/l < /14/15 18:45 N2 Strontium ug/l < /14/15 18:45 Vanadium ug/l < /14/15 18:45 N2 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Chromium ug/l Cobalt ug/l Molybdenum ug/l I N2 Strontium ug/l Vanadium ug/l N2 Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Chromium ug/l Cobalt ug/l < Molybdenum ug/l < N2 Strontium ug/l D4 Vanadium ug/l N2 Qual Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 07/16/ :08 PM Page 7 of 11

8 #=QL# QUALIFIERS DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PASI-O Pace Analytical Services - Ormond Beach ANALYTE QUALIFIERS I D4 N2 The reported value is between the laboratory method detection limit and the laboratory practical quantitation limit. Sample was diluted due to the presence of high levels of target analytes. The lab does not hold TNI accreditation for this parameter. Date: 07/16/ :08 PM Page 8 of 11

9 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 001 EP 502 EPA MPRP/25132 EPA ICPM/ EP 502 Blank EPA MPRP/25132 EPA ICPM/10201 Date: 07/16/ :08 PM Page 9 of 11

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