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M (� h 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> C`-�'a m o b e" A m I yt i C a l• Inc- Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality-Counts" httpl/www.rnmampbeH.com/E-mail:main@mccampbell.com <br /> Chow Engineering Client Project ID: #11R-120; Date Sampled: 12/13/11 <br /> CalWater Stockton <br /> 7770 Pardee Lane,Ste. 100 <br /> Date Received: 12/13/11 <br /> Client Contact: Reuben Chow Date Extracted 12/13/11 <br /> Oakland,CA 94621-3023 Client P.O.: Date Analyzed 12/13/11-12/14/11 <br /> Total Extractable Petroleum Hydrocarbons* <br /> Extraction method: SW3550B Analytical methods: SW8015B Work Order. 1112398 <br /> Lab ID Client ID Matrix TPH-Diesel DF %SS Comments <br /> (CIO-C23) <br /> 1112398-OOIA 001 S 240 100 91 e7,e2 <br /> 1112398-002A 002 S 190 100 86 e7,e2 <br /> 1112398-003A 003 S ND 1 109 <br /> 11123 <br /> 98-004A TPl S 110 10 86 e7,e2 <br /> 11 12398-005A TP2 S ND 1 110 <br /> 1112398-006A <br /> TP3 S 76 20 87 e7,e2 <br /> 1112398-007A TP4 S ND 1 109 <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 gg/L,wipe samples inµg/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 gg/L. <br /> #cluttered chromatogram resulting in coeluted surrogate and sample peaks,or,surrogate peak is on elevated baseline,or;surrogate has been diminished <br /> 1 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 ran a com ounds are si 'ficant <br /> DHS ELAP Certification 1644 Angela Rydelius,Lab Manager <br /> r <br /> Page 17 of 22 <br />