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E <br />11 <br />M C C a m g b e I l A n a l vt i c a l, Inc. <br />"When Quality Counts" <br />1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mceampbell.com / E-mail: main@mccampbell.com <br />Chow Engineering Client Project ID: #11R-120;Ca1Water Date Sampled: 12/15/11 <br />Stockton — <br />Date Received: 12/15/11 <br />7770 Pardee Lane, Ste. 100 <br />Client Contact: Reuben Chow Date Extracted 12/15/11 <br />Oakland, CA 94621-3023 Client P.O.: Date Analyzed 12/16/11 <br />Total Extractable Petroleum Hydrocarbons* <br />Extraction method: SW3550B Analytical methods: SW8015B Work Order: 1112484 <br />Lab ID <br />Client ID <br />Matrix <br />TPH-Diesel <br />(C10 -C23) <br />DF <br />% SS <br />Comments <br />1112484-001 A <br />4E <br />S <br />390 <br />100 <br />93 <br />e7,e2 <br />1112484-002A <br />5W <br />S <br />630 <br />100 <br />99 <br />e7,e2 <br />1 1 1 2484-003A <br />11 12484-004A <br />---- 6E --- —� <br />7M <br />S _�.-- <br />S <br />---- - -- ND <br />ND <br />1 <br />1 <br />L 96 <br />j 95 <br />----� <br />1112484-005A <br />i <br />8W <br />S <br />ND <br />1 <br />94 <br />i <br />i <br />i <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 jig/wipe, soil/solid/sludge samples in mg/kg, product/oil/non-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 />e7 oil range compounds are significant <br />DHS ELAP Certification 1644 <br />Angela Rydelius, Lab Manager <br />Page 15 of 21 <br />