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34 Willow Paw Road, CA 94565-1701 <br />14 MCCainpbelI AnaN tiCaI. InC. Toll FreeTelephone: (8 2-b�Fax: (925)252-9269 <br />"When Q Counts" I httpJ/www.nwcanipbeH.com / E-mail: nmftm&nccampbclLcotn <br />Chow Engineering <br />7770 Pardee Lane, Ste. 100 <br />Oakland, CA 94621-3023 <br />Client Project ID: #11R-120;Ca1Water <br />Stockton <br />Date Sampled: <br />12/15/11 <br />Date Received: 12/15/11 <br />Client Contact: Reuben Chow <br />Date Extracted: 12/15/11 <br />Client P.O.: <br />Date Analyzed: 12/16/11 <br />Polychlorinated Biphenyls (PCBs) Aroclors by GC -ECD* <br />Extraction Method. SW3550B Analytical Method: SW8082 <br />Lab ID 1112484-001A 1112484-002A 1112484-003A 11112484-004A <br />Wo=k Order. 1112484 <br />Client ID <br />4E 5W 6E 7M <br />Reporting Limit <br />DF =1 <br />for <br />Matrix <br />S S S S <br />DF <br />20 20 1 1 <br />S <br />W <br />Compound <br />Concentration <br />mg/kg <br />ug/L <br />Aroclor1016 <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Aroclorl221 <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Aroclorl232 <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Aroclor1242 <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Aroclor1248 <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Aroclorl254 <br />ND<1.0 <br />N13<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Aroclor1260 <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />PCBs, total <br />ND<1.0 <br />ND<1.0 <br />ND <br />ND <br />0.05 <br />NA <br />Surrogate Recoveries (%) <br />%SS: 125 <br />118 89 87 <br />Comments a3,h4 <br />a3,h4 —7— <br />* water samples in µg/L, soil/sludge/solid samples in mg/kg, wipe samples in gg/wipe, filter samples in µg/filter, product/oil/non-aqueous liquid samples <br />and all TCLP & SPLP extracts are reported in mg/L. <br />ND means not detected above the reporting limit/method detection limit; N/A means analyte not applicable to this analysis; %SS = Percent Recovery of <br />Surrogate Standard; DF = Dilution Factor <br /># surrogate diluted out of range or surrogate coelutes with another peak. <br />a3) sample diluted due to high organic content. <br />h4 sulfiuic acidto PA 3665 cleanup <br />DHS ELAP Certification 1644 <br />Angela Rydelius, Lab Manager <br />Page 6 of 21 <br />