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LABORATORIES, INC. <br /> Lawrence&Associates <br /> 2001 Market Street, Room 523 Project: Neenah Paper Co. Reported: 02/13/2008 13:54 <br /> Redding, CA 96001 Project Number: 005194.02, T1 <br /> Project Manager: David Kirk <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Constituent Batch ID qC Sam le ID Spike Percent Percent <br /> qC T e Result Level PqL Units RecoveryRPD Lab quals <br /> Chloride _ BRA1803 BRA1803-BS1 LCSRPD Recovery_ 104.09 100.00 0.50 mg/L 104 <br /> Nitrate as NO3 BRA1803 BRA1803-BSI LCS - _ g0-110 <br /> _ _ 22.316 22.134 0.50 mg/L 101 -- - 90- 110-- - - <br /> Sulfate _ BRA1803 BRA1803-BS1 LCS _ <br /> ----- _ _ _ _ _ 101.66 100.00 1.0 mg/L 102 - -- 90- 110- -- - <br /> Sodium BRB0073 BRB0073-BS1 LCS _ <br /> ---- - _ _ _ _ __ 10.129 10.000 0.50 mg/L 101 --- - 5 - - - <br /> PH - BRB0081 BR80081-BSI LCS _ 85- 115 <br /> --- _ _ 7.0540 7.0000 0.05 pH Units 10795- 105- - - -- <br /> Electrical Conductivity @ 25 C BRB0119 BRB0119-BSI LCS _ <br /> - - - - _ _ _ _ 316.00 303.00 1.00 umhos/cm 104 - <br /> Electrical Conductivity @ 25 C BRB0120 BR60120-BS1 LCS <br /> 90- 110 <br /> _ 312.00 303.00 1.00 umhos/cm 103 - - <br /> Total Dissolved Solids @ 180 C BRB0179 BRB0179-- LCS 90-110 <br /> - ---- 595.00 586.00 50 mg/L 102 --- — - - <br /> 90-110 <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance rvith bine chain of custody doc a sem. Tins analytical,epm't t be reproduced in its entlrete <br /> All trials listed in This r,Pon are for the exclusive use ofhe submitting parry BC Laboratories,Inc.assumes no responsibility for report alteration,separation, detachment or Third parry in[erpretmistio� <br /> 4100 Atlas Court•Bakersfield,CA 93308 9)327-4911 • FAX(661)327-1918 • www.betabs.com Page 15 of 17 <br />