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r I <br /> EhVJR,1!F--NTAL HEALTH <br /> HE Nli SERVICE <br /> Texaco Refining IncRic cutting Bird <br /> and Marketing Richmond CA 9480,34 NOY 28 PM 1. 29 <br /> November 21, 1994 <br /> ENV - STUDIES, SURVEYS & REPORTS <br /> 440 West Charter Way <br /> Stockton, California <br /> Ms Linda Turkette <br /> Public Health Services <br /> San Joaquin County <br /> Environmental Health Division <br /> P O Box 2009 <br /> Stockton, CA 95201 <br /> Dear Ms Turkette <br /> This letter presents the results of groundwater monitoring and sampling conducted by RESNA Industries, <br /> Inc on September 22, 1994, at the site referenced above (see Plate 1, Site Vicinity Map) Based on <br /> groundwater level measurements, the areal hydraulic gradient was estimated to be northeast (see Plate 2 <br /> Groundwater Gradient Map) The gradient map has been reviewed by a registered professional TPHg and <br /> benzene concentrations are shown on Plate 3 Tables 1 and 2 list historical groundwater monitoring data <br /> and analytical results, respectively <br /> The certified analytical report,chain-of-custody, field data sheets, bill of lading and quarterly summary report <br /> are in the Appendix, along with Texaco Environmental Services' Standard Operating Procedures <br /> If you have any questions or comments regarding this site, please call the Texaco Environmental Services' <br /> site Project Coordinator, Mr David Heinrich at (916) 361-0614 <br /> Best Regards, <br /> Rebecca Digerness <br /> Environmental Technician <br /> Karen E Petryna <br /> Engineer <br /> TBD ss Environmental Services <br /> R <br /> \LC IQMR1440WCIQMR LET <br /> l nclosures <br /> Building on a Tradition of Quality <br />