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I <br /> ® Laboratories, Inc. 1 <br /> Environmental Testing Laboratory6i <br /> Since 1949 <br /> Lawrence 3r Associates Reported: 10/29/2010 16:54 <br /> 3590 Iron Court Project: Neenah Paper Co. <br /> Shasta Lake City, CA 96019 Project Number: 005194.04 Task 7 <br /> Project Manager: David Kirk <br /> Water Analysis (General Chemistry) <br /> Quality Control Report Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br /> QC Batch ID: BTJ0947 Used client sample: Y- Description: PW-6, 10/13/2010 10:30 <br /> Carbonate DUP 1014400-12 ND ND mg/L 10 <br /> pH DUP 1014400-12 7.7000 7.7300 pH Units 0.4 20 <br /> Electrical Conductivity @ 25 C DUP 1014400-12 697.50 700.60 umhos/cm 0.4 10 <br /> QC Batch ID: BTJ1187 Used client sample: N <br /> Total Dissolved Solids @ 180 C DUP 1014494-01 683.33 689.99 mg/L 1.0 10 <br /> QC Batch 1D: BTJ1809 Used client sample: N <br /> Dissolved Calcium DUP 1014397-01 57.970 57.869 mg/L 0.2 20 <br /> MS 1014397-01 57.970 67.749 10.204 mg/L 95.8 85-115 <br /> MSD 1014397-01 57.970 67.970 10.2204 mg/L 2.2 98.0 20 85-115 <br /> Dissolved Magnesium DUP 1014397-01 22.927 22.929 mg/L 0.0 20 <br /> MS 1014397-01 22.927 33.155 10.204 mg/L 100 85-115 <br /> MSD 1014397-01 22.927 33.326 10.204 mg/L 1.7 102 20 85-115 <br /> Dissolved Sodium DUP 1014397-01- 113.99 108.31 - mg/L 5.1 20 <br /> MS 1014397-01 113.99 122.07 10.204 mg/L 79.2 85-115 A03 <br /> MSD 1014397-01 113.99 120.25 10,204 mg/L 25.4 61.3 20 65-115 A03,Q <br /> 02 <br /> Dissolved Potassium DUP 1014397-01 3.5056 3.4654 mg/L 1.2 20 <br /> MS 10143397-01 3.5056 13.674 10.204 mg/l- 99.6 85-115 <br /> MSD 1014397-01 3.5056 13.736 10.204 mg/L 0.6 100 20 85-115 <br /> QC Batch ID: BTJ1810 Used client sample: Y- Description: TH-1, 10/13/2010 14:27 <br /> Dissolved Calcium DUP 1014400-01 62.778 62.762 mg/L 0.0 20 <br /> MS 1014400-01 62.778 71.783 10.204 mg/L 88.3 85-115 <br /> MSD 1014400-01 62.778 71.166 10.204 mg/L 7.1 82.2 20 85-115 A03 <br /> Dissolved Magnesium DUP 1014400-01 16.024 15.933 mglL 0.6 20 <br /> MS 1014400-01 16.024 25.906 10.204 mg/L 96.8 85-115 <br /> MSD 1014400-01 16.024 25.959 10.204 mg/L 0.5 97.4 20 85-115 <br /> Dissolved Sodium DUP 1014400-01 198.40 195.35 mg/L 1.6 20 <br /> MS 1014400-01 198.40 210.96 10.204 mg/L 123 1 85-115 A03 <br /> MSD 1014400-01 198.40 209.05 10.204 mg/L 16.5 104 20 85-115 <br /> Dissolved Potassium DUP 1014400-01 6,9077 6.8984 mg/L 0.1 20 <br /> MS 1014400-01 6.9077 17.294 10.204 mg/L 102 85-115 <br /> MSD 1014400-01 6.9077 17.374 10.204 mg/L 0.3 103 20 85-115 <br /> The results in this report apply to rhe samples anal=eat in accordance with the chain of nrst dy doer,rens. This a nautical report anust be reproduced in its entirety. <br /> NI results listed in this repos we for the exclusive use of the s'ubantling pony BC Laboratories,luc.nss'nrtes no responsibility[or repair alteration separation,rleu:ehrRwR or third pany interpretation <br /> 4100 Atlas Court Bakersfeld,CA 93308 (661)327-4911 FAX(681)327-1918 www.bclabs.corn, Page 34 of 35 <br />