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Delta vwl <br /> Environmental <br /> Consultants, Inc. z..- a.. <br /> 11030 White Rock Road, Suite 110 <br /> Rancho Cordova, CA 95670 c <br /> 916 638-2085 = <br /> October 21, 1988 <br /> San Joaquin Local Health Department <br /> 1601 East Hazelton <br /> �. Stockton, CA 95205 <br /> Attention: Ms. Laurie Cotulla <br /> Subject: Domestic Well Ground Water Analysis <br /> Moore Petroleum Inc. <br /> 5491 "F" Street <br /> Banta, CA 95304 <br /> Delta Project No. 40-88-481 <br /> Dear Ms. Cotulla: <br /> This letter is in regard to our recent conversation (10/19/88) regarding <br /> possible impact of a domestic water well adjacent to the subject site by <br /> dissolved petroleum constituents. Earth Treatment Systems Environmental <br /> (ETS) stated in their report, dated October 7, 1988, and titled "Prelimi- <br /> nary Site Assessment, 5491 "F" Street, Banta, CA 95304" that <br /> "The nearest domestic well,i�as of the last sampling date, has possibly <br /> been impacted as indicated by lab results showing less than 50 ppm <br /> TPH." <br /> This statement is incorrect. As can be seen on the laboratory report <br /> (enclosed),_ the detection limit for TPH for this sample was 0.05 ppm (50 <br /> ppb) and the concentration detected in the samples was <0.05 ppm (50 ppb). <br /> Therefore, TPH was not detected in the sample. Also shown on the <br /> laboratory report: benzene, toluene, ethylbenzene, xylene (BTEX)--as <br /> well as 1,2-dichloroethane (EDC) and ethylene dibromide (EDB)--were <br /> not detected in the water sample'from this well. <br /> Based on the laboratory report of the analysis of this sample, there is no <br /> evidence indicating the presence of dissolved hydrocarbons in this well. <br /> The location of the well in question is shown on the enclosed map. <br /> As we discussed, Delta Environmental Consultants, Inc. (Delta) is in the <br /> process of preparing work plans/reports for the subject site as well as <br /> two additional Moore Petroleum sites located in Manteca, California <br /> (14800 Frontage Road and 1399 East Yosemite Avenue). These work <br /> plans/reports will detail previous work performed by ETS at these sites, <br /> as well as proposed work at all three sites that will complete the <br /> Preliminary Hydrogeologic Assessments for these sites. It is anticipated <br /> that these work plans/reports will be completed in approximately three <br /> weeks. <br /> Practical Solutions to Environmental Concerns <br />