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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />M <br />p h p 1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />14-" M C Ca m EJ a✓e+)) /in a l ytiCa l • (nC • Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />"When Qqqft Cotaw" l bttp://www.mmampbelLcom / E -mad: main@mccanipbelLcont <br />Chow Engineering <br />7770 Pardee bane, Ste. 100 <br />Oakland, CA 94621-3023 <br />Total <br />Extraction method: SW3550B <br />Lab ID Client ID <br />Client Project ID: #11R-120; <br />CalWater Stockton <br />Date Sampled: 12/13/11 <br />Date Received: 12/13/11 <br />Client Contact: Reuben Chow <br />Date Extracted 12/13/11 <br />Client P.O.: Date Analyzed 12/14/11 <br />Extractable Petroleum Hydrocarbons* <br />Analytical methods: SW8015B Work Order. 1112399 <br />Matrix 7'PH-Diesel DF % SS Comments <br />(CIO -C23) <br />1112399-OOIA <br />Pile I <br />S <br />7.5 <br />5 <br />97 <br />e7,e2 <br />1112399-002A <br />Pile 2 <br />S <br />36 <br />20 <br />99 <br />e7,e2 <br />1112399-003A <br />Pile 3 <br />S <br />46 <br />20 <br />101 <br />e7,e2 <br />1112399-004A <br />Pile 4 <br />S <br />11 <br />5 <br />99 <br />e7,e2 <br />1112399-005A <br />Pile 5 <br />S <br />1.9 <br />1 <br />107 <br />e7,e2 <br />Reporting Limit for DF =1; W NA NA <br />ND means not detected at or <br />above the reporting limit S 1.0 mg/Kg <br />water samples are reported in µg/L, wipe samples in µg/wipe, soil/solid/sludge samples in mg/kg, product/oillnon-aqueous liquid samples in mg/L, and <br />all DISTLC / STLC / SPLP / TCLP extracts are reported in µg/L. <br /># cluttered chromatogram resulting in coeluted surrogate and sample peaks, or, surrogate peak is on elevated baseline, or, surrogate has been diminished <br />by dilution of original extract. <br />%SS = Percent Recovery of Surrogate Standard. DF = Dilution Factor <br />The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation: <br />e2) diesel range compounds are significant; no recognizable pattern <br />e oil an a co ds are significant <br />Angela Rydelius, Lab Manager <br />Page 15 of 20 <br />