ARCHIVED REPORTS_XR0007316 - Laserfiche WebLink

Home Browse Search

SECOR www secor com CSI ® INTERNATIONAL 3017 Kilgore Road Suite 100 INCORPORATED Rancho Cordova CA 95670 916$61-0400 TEL 916$81-0430 F.ax July 30, 2004 Mr Harlin Knoll San Joaquin County Environmental Health Department 304 East Weber Avenue, Third Floor Stockton, California 95202 RE Second Quarter 2004 Groundwater Monitoring Report Chevron Station 9-8264 3775 Tracy Boulevard Tracy, California SECOR Protect No 77CH 00000 23 0026 Dear Mr Knoll SECOR International Incorporated (SECOR), on behalf of Chevron Environmental Management Company has provided this report to summarize the results of the second quarter 2004 (2Q2004) groundwater monitoring event at the above-referenced site COMPLETED ACTIVITIES — SECOND QUARTER 2004 ■ Conducted quarterly groundwater monitoring and sampling, and, ■ Prepared and submitted quarterly groundwater monitoring report PLANNED ACTIVITIES —THIRD QUARTER 2004 ■ Conduct quarterly groundwater monitoring and sampling, and, ■ Prepare and submit quarterly groundwater monitoring report DISCUSSION On April 26, 2004, Gettler-Ryan Incorporated (G-R) performed 202004 groundwater monitoring and sampling G-R's groundwater monitoring report is included in Attachment A Depth to groundwater across the site ranged from 9 10 to 10 76 feet below ground surface (bgs) Groundwater elevation across the site increased an average of 0 03 feet from the previous sampling event Groundwater flow was calculated to the northeast at an approximate gradient from 0 001 to 0 003 feet per foot (ftlft) 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 listed below 40 1 IChev=1982641Penodre Monitonng1200412Q2004 QMR 98264 doc SECOR International incorporated