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w ��Q <br /> Texaco Refining 108 Cutting Boulevard <br /> and Marketing Inc Richmond CA 94804 <br /> February 25, 1997 <br /> ENV -STUDIES,_SURVEYS_& REPORTS <br /> 440 West Charter Way, Stockton, California <br /> Quarterly Monitoring Report <br /> Ms Linda Turkette t r <br /> Public Health Services ;YT <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 <br /> Services, Inc on November 25, 1996, 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 southeast <br /> The gradient map has been reviewed by a registered professional (see Plate 2 Groundwater Gradient <br /> Map) TPI-Ig and benzene concentrations are shown on Plate 3 Tables 1 and 2 list historical <br /> groundwater 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's Standard Operating Procedures may be found in the first quarter, 1995 monitoring report <br /> If you have any questions or comments regarding this site, please call the Texaco Protect Coordinator, <br /> Mr David Heinrich at (916) 966-8130 <br /> Best Regards, <br /> Rebecca Digerness Q�ppF1�FESS/Dye <br /> Environmental Assistant <br /> f�C55 f 2 fi <br /> Qr� -,V-619 --0 <br /> CIVIL <br /> Karen E Petryna, P E 9�OF CALIFD��P <br /> Civil Engineer <br /> Texaco Refining and Marketing, Inc <br /> RBD hs <br /> C \QMR\440WC\QMR LET <br /> Enclosure <br /> Building on a Tradition of Quality <br /> �I <br />