ARCHIVED REPORTS_SECOND HALF AND ANNUAL 2010 GW MONITORING RPT

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Laboratories, Inc. ��i Environmental Testing Laboratory Since 1949 Lawrence&Associates Reported: 11/22/2010 13:23 3590 Iron Court Project: Neenah Paper Co. Shasta Lake City, CA 96019 Project Number: 005194-04,Task 7 Project Manager: David Kirk Water Analysis (General Chemistry) Quality Control Report - Precision & Accuracy Control Limits Source Source Spike Percent Percent Lab Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals QC Batch ID: BTJ0798 Used client sample: Y- Description: OB-1, 10/12/2010 06:15 Bicarbonate DUP 1014319-01 547.20 549.05 mg/L 0.3 10 Carbonate DUP 1014319-01 ND ND mg/L 10 pH DUP 1014319-01 7.5600 7.5300 pH Units 0.4 20 Electrical Conductivity @ 25 C DUP 1014319-01 1533.0 1535.0 umhos/cm 0.1 10 QC Batch ID: BTJ0799 Used client sample: Y- Description: OB-2, 10/12/2010 10:25 Bicarbonate DUP 1014319-02 621.77 625.11 mg/L 0.5 10 Carbonate DUP 1014319-02 ND ND mg/L 10 pH DUP 1014319-02 7.3100 7,3200 pH Units 0.1 20 -- --- �. . .__.__._---------_.-- Electrical Conductivity @ 25 C DUP 1014319-02 1703.0 1699.0 umhos/cm 0.2 10 QC Batch ID: BTJ0800 Used client sample: Y-Description: OB-10, 10/12/2010 13:06 Bicarbonate DUP 1014319-10 208.12 208.86 mg/L 0.4 10 Carbonate DUP 1014319-10 ND ND mg/L 10 pH DUP 1014319-10 7.1100 7.1300 pH Units 0.3 20 Electrical Conductivity @ 25 C PUP 1014319-10 712.20 710.10 umhos/cm 0.3 10 QC Batch ID: BTJO801 Used client sample: Y- Description: OB-20, 10/12/2010 08:26 Bicarbonate DUP 1014319-20 244.66 245.04 mg/L 0.2 10 Carbonate DUP 1014319-20 ND r ND mg/L 10 pH DUP 1014319-20 7.9100 7.9200 pH Units 0.1 20 Electrical Conductivity @ 25 C DUP 1014319-20 569.70 569.90 umhos/cm 0.0 10 QC Batch ID: BTJ0882 Used client sample: Y- Description: OB-1, 10/12/2010 06:15 Chloride DUP 1014319-01 168.86 171.90 mg/L 1.8 10 MS 1014319-01 168.86 270.96 101.01 mg/L 101 80-120 MSD 1014319-01 168.86 273.32 101.01 mg/L 0.9 103 10 80-120 Nitrate as N DUP 1014319-01 6.0260 6.1510 mg/L 2.1 10 PAS 1014319-01 6.0260 11.211 5.0505 mg/L 103 80-120 MSD 1014319-01 6.0260 11.296 5.0505 mg/L 0.8 104 10 80-120 Sulfate DUP 1014319.01 107.88 109.62 mg/L 1.6 10 MS 1014319-01 107.88 213.46 101.01 mg/L 105 80-120 MSD 1014319-01 107.88 214,39 101.01 mg/L 0.4 105 10 80-120 QC Batch ID: BTJO883 Used client sample: N Chloride DUP 1014313-01 84.971 85.343 mg/L 0.4 10 MS 1014313-01 84.971 182.73 101.01 mg/L 96.8 80-120 MSD 1014313-01 84.971 184.66 101.01 mg/L 1.1 98.7 10 80-120 The results in this report apple to the samples analy_ed in accordance iridr the chain of custody document. This analytical report mast be reproduced in its entirety, All results listed in this report are for(Le exclusive use of the submitting party BC Laboraludes,Inc.assumes no responsibility for report aheratian separation,detachment or third party nourpretatian - 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 vi w.bclabs.com Page 54 of 58