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Laboratories Inc. , <br /> Environmental Testing Laboratory Since 1949 <br /> Lawrence&Associates Project: Neenah Paper Co. Reported: 04/22/2010 10:28 <br /> 3590 Iron Court Project Number: 005194.04 T3 <br /> Shasta Lake City,CA 96019 Project Manager: David Kirk <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent Batch ID QC Sample ID QC Type Result Level PQL Units Recovery RPD Recovery RPD Lab Quals <br /> pH BTD0526 BTD0526-BS2 LCS 7.0200 7.0000 0.05 pH Units 100 95-105 <br /> Electrical Conductivity @ 25 C BTD0526 BTD0526-BS1 LCS 310.20 303.00 1.00 umhos/cm 102 90-110 <br /> pH BTD0527 BTD0527-BS2 LCS 7.0200 7.0000 0.05 pH Units 100 95-105 <br /> Electrical Conductivity @ 25 C BTD0527 BTD0527-BS1 LCS 298.30 303.00 1.00 umhos/cm 98.4 90-110 <br /> Chloride BTD0541 BTD0541-BS1 LCS 100.82 100.00 0.50 mg/L 101 90-110 <br /> Nitrate as N BTD0541 BTD0541-BS1 LCS 5.0360 5.0000 0.10 mg/L 101 90-110 <br /> Sulfate BTD0541 BTD0541-BS1 LCS 100.83 100.00 1.0 mg/L 101 90-110 <br /> Chloride BTD0542 BTD0542-BS1 LCS 100.62 100.00 0.50 mg/L 101 90-110 <br /> Nitrate as N BTD0542 BTD0542-BS1 LCS 5.0980 5.0000 0.10 mg/L 102 90-110 <br /> Sulfate BTDO542 BTD0542-BS1 LCS 101.06 100.00 1.0 mg/L 101 90-110 <br /> Sodium BTD0631 BTD0631-BS1 LCS 10.620 10.000 0.50 mg/L 106 85-115 <br /> Sodium BTD0633 BTD0633-BS1 LCS 10.844 10.000 0.50 mg/L 108 85-115 <br /> Total Dissolved Solids @ 180 C BTD0897 BTD0897-BS1 LCS 560.00 586.00 50 mg/L 95.6 90-110 <br /> Total Dissolved Solids @ 180 C BTD0899 BTD0899-BS1 LCS 540.00 586.00 50 mg/L 92.2 90-110 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party.BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 20 of 22 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />