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: 10/29/2010 16:54 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 RecoveryQuals QC Batch ID: BTJO871 Used client sample: Y- Description: TH-1, 10/13/2010 14:27 Total Dissolved Solids @ 180 C DUP 1014400-01 940.00 945.00 mg/L 0.5 10 QC Batch ID: BTJO895 Used client sample: N Chloride DUP 1014401-01 151.15 152.77 mg/L 1.1 10 MS 1014401-01 151.15 246.98 101.01 mg/L 94.9 80-120 MSD 1014401-01 151.15 247.50 101.01 mg/L 0.5 95.4 10 80-120 Nitrate as N DUP 1014401-01 ND ND mg/L 10 MS 1014401-01 ND 4.9960 5.0505 mg/L 98.9 80-120 . MSD 1014401-01 ND 5.0030 5,0505 mg/L 0.1 99.1 10 80-120 Sulfate DUP 1014401-01 196.52 196.01 mg/L 0.3 10 MS 1014401-01 196.52 297.21 101.01 mg/L 99.7 80-120 MSD 1014401-01 196.52 297.85 101.01 mg/L 0.6 100 10 80-120 QC Batch ID: BTJ0896 Used client sample: Y- Description: TH-9, 10/13/2010 12:30 Chloride DUP 1014400-08 170.31 173.15 mg/L 1.7 10 MS 1014400-08 170.31 270.26 101.01 mg/L 99.0 80-120 MSD 1014400-08 170.31 269.38 101.01 mg/L 0.9 98.1 10 80-120.. Nitrate as N DUP 1014400-08 4.8760 5.0240 mg/L 3.0 10 MS 1014400-08 4,8760 10.170 5.0505 mg/L 105 80-120 MSD 1014400-08 4,8760 10.107 5.0505 mg/L 1.2 104 10 80-120 Sulfate DUP 1014400-08 118.27 120.72 mg/L 2.0 10 MS 1014400-08 118.27 224.21 101.01 mg/L 105 80-120 MSD 1014400-08 118.27 224.30 101.01 mg/L 0.1 105 10 80-120 QC Batch ID: BTJ0929 Used client sample. N Total Dissolved Solids @ 180 C DUP 1014396-01 1390.0 1380.0 mg/L 0.7 10 '.. QC Batch ID- BTJO945 Used client sample: N Bicarbonate DUP 1014362-02 242.99 244.11 mg1L 0.5 10 Carbonate DUP 1014362-02 ND ND mg/L 10 '.. pH DUP 1014362-02 7.4200 7.4300 pH Units 0.1 20 Electrical Conductivity @ 25 C DUP 1014362-02 1339.0 1349.0 umhos/cm 0.7 10 QC Batch ID BTJO946 Used client sample: Y- Description: TH-2, 10/13/2010 09:49 Bicarbonate DUP 1014400-02 412,91 415.87 mg/L 0.7 10 Carbonate DUP 1014400-02 ND ND mg/L 10 pH DUP 1014400-02 7.6000 7.6000 pH Units 0 20 Electrical Conductivity @ 25 C DUP 1014400-02 1323.0 1320.0 umhos/cm 0.2 10 '.. QC Batch ID: BTJO947 Used client sample Y- Description: PW-6, 10/13/2010 10:30 Bicarbonate DUP 1014400-12 251.71 252.45 mg/L 0.3 10 The results in this report app,j,to Me samples analy-ed in accordance it ah lite chain of custody docrnnent. This analytical report most be reproduced it,its enrireot All results listed in this report are for die exclusive use of the submitting parry BC Laboratories,hw,assumes no responsibility for repon aheratiun separation,detaclnnent or third puny interpretation '.. 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 33 of 35