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SECOR www secor cam <br /> INTERNATIONAL 3017 Kilgore Road Suite 100 <br /> S E C ® R INCORPORATED Rancho Cordova CA 95670 <br /> 916 861 0400 TEL <br /> • 916 861 0430 FAX <br /> January 21, 2003 <br /> Harlin Knoll <br /> San Joaquin County <br /> Environmental Health Division <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 <br /> RE Chevron Groundwater Monitoring Report (402002) <br /> Chevron Station 9-2396 <br /> 25651 Highway 99 North <br /> Acampo, California <br /> SECOR Project No 77CH 00000 00 0027 <br /> Dear Mr Knoll <br /> SECOR International Incorporated Is providing this report to summarize the recently <br /> completed groundwater-monitoring event at the above referenced site The site is located at 25651 <br /> Highway 99 North, Acampo, California <br /> ACTIVITIES COMPLETED FOURTH QUARTER 2002 <br /> • Conducted quarterly groundwater monitoring and sampling Prepared and submitted quarterly <br /> groundwater monitoring report <br /> PROPOSED ACTIVITIES FOR FIRST QUARTER 2003 <br /> Conduct quarterly groundwater monitoring and sampling Prepare and submit quarterly groundwater <br /> monitoring report <br /> DISCUSSION <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on October 30, <br /> 2002 Groundwater samples were collected from three wells during this event There were no <br /> detectible levels of total petroleum hydrocarbons as gasoline (TPHg), benzene, or methyl tertiary <br /> butyl ether (MtBE) in any of the samples collected from the wells Depth to water across the site <br /> Increased by an average of approximately 2 22 feet from the previous quarter The groundwater flow <br /> direction was to the south at 0 003 ft/ft <br /> LIMITATIONS <br /> The findings presented in this letter are based on data and interpretations provided by Gettler-Ryan, <br /> Inc Gettler-Ryan's report is attached The data presented in this summary is accurate only to the <br /> degree implied by the sources and methods used No warranty, expressed or implied, is made by <br /> SECOR <br /> I IChevron492396tPerrodic Monftoringi20021402002 QMR doc SECOR International Incorporated <br /> �F <br /> e <br />