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1 <br /> �R4 <br /> Y'.i` yf! + z7ZI <br /> Texaco Refining 10B Cutting Boulevard- <br /> and Marketing Inc Richmond CA 94804 1101- <br /> JA 2? PH 1. 4ti <br /> January 16, 1996 <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 Blaine Tech l <br /> Services, Inc on November 16, 1995, at the site referenced above (see Plate 1, Site Vicinity Map) <br /> Based on groundwater level measurements, the areal hydraulic gradient was estimated to be east The <br /> gradient map has been reviewed by a registered professional (see Plate 2 Groundwater Gradient Map) <br /> TPHg and benzene concentrations are shown on Plate 3 Tables 1 and 2 list historical groundwater <br /> monitoring data and analytical results, respectively <br /> The certified analytical report, chain-of-custody, field data sheets, bill of lading are in the Appendix <br /> Texaco Environmental Services' Standard Operating Procedures may be found in Texaco's first quarter, <br /> 1995 monitoring report <br /> If you have any questions or comments regarding this site, please call the Texaco Environmental <br /> Services' site Project Coordinator, Mr David Heinrich at (916) 966-8130 <br /> f <br /> Best Regards, <br /> �D�1— <br /> Rebecca Digerness <br /> Environmental Assistant <br /> Karen E Petryna <br /> Engineer <br /> Texaco Environmental Services <br /> RBD hs <br /> C \QMR\440WC\QMR LET <br /> Enclosures <br /> Building on a Tradition of Quality <br />