Laserfiche WebLink
Chevron <br /> Chevron U.S.A. Products-Company <br /> 2410 Camino Ramon,San Ramon,California•Phone (510)842-9500 <br /> Mail Address:P.O.Box 5004,San Ramon,CA 94583-0804 V LC D <br /> F E B Q 3 1993 <br /> January 29, 1993 ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> i <br /> IVIS. Mary Meays <br /> San Joaquin County Environmental Health <br /> P.O. Box 2009 <br /> Stockton,CA 95201 <br /> Re:_ _ Chevron Station#9-4275 2905 West Benjamin Holt Drive Stockton CA <br /> I <br /> Attached groundwater monitoring report(Alton, 1/18/93) <br /> i <br /> Dear Ms. Meays: <br /> Attached is a report dated January 18, 1993, which was prepared by Chevron's consultant, Alton <br /> Geoscience (Alton), to describe groundwater monitoring performed at the subject site on December <br /> 10, 1992. <br /> The groundwater gradient direction and the levels of dissolved hydrocarbons were consistent with <br /> data collected at previous groundwater monitoring events. Alton will monitor the site again next <br /> quarter. <br /> As discussed in our telephone conversation on January 13, 1993, Chevron will provide to San <br /> 'Joaquin County Public Health Services a workplan for the installation of a monitoring well <br /> downgradient of MW-6 by March 15, 1993. Installation will be tentatively scheduled on, or <br /> before, April 15; 1993. Upon review of the well installation report Chevron will then submit a <br /> Problem Assessment Report by June 30, 1993. It was also agreed upon in our conversation that <br /> monitoring well MW-4 would serve as the northerly crossgradient defining point. <br /> I apologize for not obtaining third quarter 19929roundwater monitoring data. The first quarter <br /> 1993 groundwater monitoring event is scheduled for the month of February. At that .time <br /> Chevron's consultant will be sampling the City of Stockton Municipal Well #10 and analyzing for <br /> TPHGas/BTEX constituents. A quarterly sampling.schedule will be implemented for this well <br /> concurrent with regular site groundwater monitoring events. All future groundwater monitoring <br /> reports will contain information regarding the disposition of monitoring well purge water. <br /> I <br /> If you have any questions or comments, I can be reached at(510)-842-8695. <br /> Sincerely, <br />