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' Artesian Environmental Consultants 2 <br />' ANALYTIC RESULTS <br />' Groundwater samples from monitor well MW-5 for the August 18, 1993 event were <br /> analyzed for total petroleum hydrocarbons as gasoline (TPH-g) by modified EPA <br /> Method 8015, and benzene, toluene, ethylbenzene and total xylenes (BTEX) by EPA <br />' Method 8020 Levels of TPH-gas and BTEX were below detection limits in MW-5 <br /> The analytic results for all sampling events including this round of sampling, are <br /> t summarized in Table 2 Laboratory reports with quality assurance/quality control <br /> documents are included in Appendix C The chain-of-custody form is included as <br /> Appendix D <br /> COMMENTS <br /> The groundwater flow direction for the August 18, 1993 sampling event was to the <br /> east -southeast, which is similar to the east -northeast flow direction of the May 14, <br /> 1993 sampling event Monitor well MW-2 was found to contain 0 03' (0 36") of a <br /> floating hydrocarbon product, as measured by an oil-water interface probe <br /> Approximately 800 milliliters of floating free product were removed from the passive <br /> skimmer installed in monitor well MW-1 None of the other monitor wells contained <br /> measurable amounts of floating product or an observable hydrocarbon sheen <br /> DISTRIBUTION: <br />' Submission to the RWQCB and the local implementing agency should include a copy <br /> of this report (in its entirety) and a cover letter from the property owner/trustee agent <br /> Four copies of this report have been included for your files and for distribution to the <br />' following agencies <br /> Public Health Service/Environmental Health Division <br /> San Joaquin County <br /> 445 N San Joaquin Street <br />' P O Box 2009 <br /> Stockton, CA 95201 <br /> Attn Ms Linda Turkatte <br /> 1 <br /> Central Valley Region <br /> ' Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3098 <br /> Attn Ms Elizabeth Thayer <br /> 1 <br /> 3175 Kemer Blvd, Suite E• San Rafael, CA 94901 (415) 257-4801 -FAX (415) 257-4805 <br />