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D.K. BARBER P.E. & ASSOCIATES <br /> 623 Camellia Way,Lodi CA 95242 Phone/Fax(209)369-0482 <br /> September 15, 2003 <br /> Mr Jeffrey Wong, Senior REHS <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E Weber Ave , Third Floor <br /> Stockton, CA 95202 <br /> Qc�Q- <br /> Dear Mr Wong <br /> Transmittal of Site Closure Assessment Report <br /> Western Oil & Spreading Inc Acampo Plant Site - <br /> 19256 N Highway 99, Acampo, CA <br /> Please find attached, a Site Closure Assessment Report by Stellar Environmental <br /> Solutions, Inc representing background information and findings to date for the <br /> subject site, dated September 9, 2003 <br /> Work in progress. <br /> The September Quarterly round of ground water samples is planned for this week or <br /> the next with exact date still not settled <br /> Sampling for BTEX in the ground water has continued to reflect non detectable <br /> levels of less than 0 5 ugll since December 2000 over the course of five to eight <br /> quarterly sampling periods <br /> request that during the September 2003 testing round that we cease testing for <br /> BTEX in the existing monitoring wells <br /> am arranging for Cone Penetration Testing or similar methodology to be employed <br /> to step out from the existing property line in a north-north easterly pattern to <br /> establish a non-detect hydrocarbon level to define an approximate leading edge of <br /> the hydrocarbon plume I will submit a formal work plan for the additional ground <br /> water sampling Anticipating a timely turn around of the plan, it is my intention to <br /> perform the work within the next month <br /> i <br />