ARCHIVED REPORTS_XR0007313 - Laserfiche WebLink

Home Browse Search

i SECOR wwwsecorcom INTERNATIONAL 3017 Kilgore Road Suite 100 S E C ® R INCORPORATED 91 861-040ova ECA 95670 916 861 0430 FAx January 31, 2005 � �[E�WEa Mr Harlin Knoll FEB 0 2 2005 San Joaquin County Environmental Health Department ENVIRONMENT HEALTR 304 East Weber Avenue, Third Floor PERMIT/SERACES Stockton, California 95202 RE Fourth Quarter 2004 Groundwater Monitoring Report Chevron Station 9-8264 3775 Tracy Boulevard Tracy, California SECOR Project No 77CH 00000 23 0026 Dear Mr Knoll SECOR International Incorporated (SECOR), on behalf of ChevronTexaco Environmental Management Company (EMC), has provided this report to summarize the results of the fourth quarter 2004 (4Q2004) groundwater monitoring event at the above-referenced site COMPLETED ACTIVITIES — FOURTH QUARTER 2004 • Conducted quarterly groundwater monitoring and sampling, and, a Prepared and submitted quarterly groundwater monitoring report PLANNED ACTIVITIES — FIRST QUARTER 2005 a Conduct quarterly groundwater monitoring and sampling, and, 0 Prepare and submit quarterly groundwater monitoring report DISCUSSION On October 27, 2004, Gettler-Ryan Incorporated (G-R) performed 402004 groundwater monitoring and sampling G-R's groundwater monitoring report is included in Attachment A Depth to k groundwater across the site ranged from 9 18 to 10 81 feet below ground surface (bgs) Groundwater elevation across the site increased an average of 0 38 feet from the previous sampling event Groundwater flow was calculated to the northeast at an approximate gradient from 0 002 to 0 003 ft/ft A summary of total petroleum hydrocarbons as diesel (TPHd), total petroleum hydrocarbons as gasoline (TPHg), benzene, and methyl tertiary butyl ether (MtBE) laboratory analytical data is presented below I LChevron1982641Penodre Monitonngl200414Q2004 QMR 98264 doc SECOR Intematronal Incorporatedr ON a