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Mr Mick Harden Page 2 <br /> July 20, 1995 <br /> Groundwater samples from all three monitonng wells were analyzed for <br /> Total Petroleum Hydrocarbon as diesel and gasoline (TPH-D and TPH-G) by <br /> USEPA Method 8015 Modified and benzene, toluene, ethylbenzene, and total <br /> xylenes (BTEX) by USEPA Method 8020. <br /> Results <br /> No target chemical constituents were detected in groundwater samples <br /> collected from monitoring wells MW-1 and MW-3. An unidentified <br /> hydrocarbon compound (C9-C24) was detected in monitoring well MW-2 at a <br /> concentration of 56 gg/l. This detection was quite low and very close to the <br /> method detection limit. <br /> All sampling results are summarized in Table 2. Complete laboratory <br /> analytical results and Cham-of-Custody forms are included in Attachment A. <br /> Table 2 <br /> Analytical Results - Second Quarter 1995 <br /> Well ID TPH-G TPH-D BTEX <br />. MW-1 <50 gg/l <50 µg/l <0.50 µg/l <br /> MW-2 <50µg/l 56 gg/I V) <0.50 µg/l <br /> MW-3 <50µg/1 <50 µg/I <0.50 µg/l <br /> Note (') = Unidentified hvdrocarbon (C9-C24) <br /> If you have any questions regarding this matter, please contact me at <br /> (916) 444-9378 <br /> Sincerely, <br /> ERM-WEST, INC. <br /> Leslie A. C.00dbody <br /> Project Manager <br /> Enclosure: Potentiometnc Surface Map <br /> Laboratory Reports <br /> TTM/LAG/653.30 <br />