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LABORATORIES, INC. <br /> Lawrence&Associates <br /> 2001 Market Street,Room 523 Project: Fox River Paper <br /> Redding CA,96001 Project Number: Fox River Paper Co.005194.00 Task 7 <br /> Project Manager: David Kirk <br /> Reported: 11/01/06 16:44 <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Precision & Accuracy <br /> Source Source Control Limits <br /> Constituent Batch ID QC Sample T e Sample ID Spike Percent Percent <br /> Result Result Added Units RPD Recovery RPD Recovery Lab Quals <br /> Electrical Conductivity @.25 C BPJ1117 Duplicate 0610946-04 693.00 689.00 <br /> Electrical Conductivityumhos/cm 0.579 10 - <br /> @ 25 C BPJ1119 Duplicate 0610946-14 1360.0 1350.0 umhos/cm 0.738 <br /> PH BPJ1122 Duplicate 0610951-01 7.2900 10 <br /> 7.2930 pH Units 0.0411 20 <br /> PHH BPJ1123 Duplicate 0610946-10 7.9920 8.0160 <br /> ppH Units 0.300 2O <br /> BPJ1124 Duplicate 0610946-20 7.9340 7.9700 <br /> Calcium pH Units 0.453 20 <br /> BPJ1262 Duplicate 0610946-01 156.15 158.97 <br /> Matrix Spike 0610946-01 156.15 170.37 10.204 mg/L 1 79 139 85-115 A03 <br /> 20 <br /> Matrix Spike Duplicate 0610946-01 156.15 165.23 10.204 mg/L 44.1 89.0 20 85-115 A03,QO2 <br /> Magnesium BPJ1262 Duplicate 0610946-01 46.365 46.174 <br /> Matrix Spike 0610946-01 46.365 56.337 10.204 mg/L 0.413 97.7 85- 115 <br /> 20 <br /> Matrix Spike Duplicate 0610946-01 46.365 56.356 10.204 mg/L 0.191 97.9 20 85- 115 <br /> Sodium BPJ1262 Duplicate 0610946-01 <br /> 77.072 78.407 mg/L 1.72 20 <br /> Matrix Spike 0610946-01 77.072 88.665 10.204 mg/L 114 <br /> Matrix Spike Duplicate 0610946-01 77.07285-115 <br /> 86.124 10.204 mg/L 24.6 88.7 20 85-115 A03,QO2 <br /> Potassium BPJ7262 Duplicate 0610946-01 3.0075 2.9797 <br /> Matrix Spike 0610946-01 3.0075 13.502 10.204 mg/L 0 927 103 85-115 <br /> 20 <br /> _. Matrix Spike Duplicate 0610946-01 3.0075 13.535 10.204 mg/L 0.312 103 20 85-115 <br /> Calcium BPJ1263 Duplicate 0610946-11 <br /> 166.12 166.72 mglL 0.364 20 <br /> Matrix Spike 0610946-11 166.12 177.48 10.204 mg/L 111 <br /> Matrix Spike Duplicate 0610946-11 166.12 175.14 10.204 m 85-115 <br /> Magnesium BPJ1263 Du licate �- 22'9 88.5 20 85-115 A03,Q02 <br /> P 0610946-11 44.915 44.966 mg/L 0.113 20 <br /> Matrix Spike 0610946-11 44.915 55.035 10.204 m9/L 99.2 <br /> Matrix Spike Duplicate 0610946-11 44.915 54.960 10.204 mg/L 0.748 98.4 20 85-115 <br /> 85-115 <br /> Sodium BPJ1263 Duplicate 0610946-11 91.418 91.578 <br /> Matrix Spike 0610946-11 91.418 102.62 10.204 mg/L 0.174 110 20 <br /> 85-115 <br /> Matrix Spike Duplicate 0610946-11 91.418 100.32 10.204 mg/L 22.8 87.3 20 85-115 A03,002 <br /> BC Laborat s The results in this report apply to the samples P PPY P ed in accordance with the chain of custody document This analytical report mus[be r aced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party.BC Lahore a assumes no res nsibili for re rt alteration,se aortic ,detachment or third <br /> responsibility W P party interpretation. <br /> 4100 Atlas Court•Bakersfield,CA 93308 •(661)327-4911 •FAX(661)327-1918•www.bclabs.com Page 26 of 31 <br />