Laserfiche WebLink
r <br /> SECOR www secorcom <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 31, 2005 REC EYED <br /> Mr Harlin Knoll FEB 0 2 2005 <br /> r <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor ENVIRQ MENS HEALTH <br /> Stockton, California 95202 PEr AIPSEPVICES <br /> RE Fourth Quarter 2004 Groundwater Monitoring Report <br /> Former Chevron Station 9-8632 7 <br /> 575 W Grant Line Road <br /> Tracy, California <br /> SECOR Project No 77CH 00000 23 0027 <br /> 4 <br /> Dear Mr Knoll <br /> SECOR International Incorporated (SECOR), on behalf of ChevronTexaco Environmental <br /> Management Company (EMC) has provided this report to summarize the results of the fourth quarter <br /> 2004 (402004)groundwater monitoring event at the above-referenced site <br /> COMPLETED ACTIVITIES - FOURTH QUARTER 2004 <br /> it Conducted quarterly groundwater monitoring and sampling, and, <br /> II ■ Prepared and submitted quarterly groundwater monitoring report <br /> PLANNED ACTIVITIES - FIRST QUARTER 2005 <br /> ■ Conduct quarterly groundwater monitoring and sampling, and, <br /> ■ Prepare and submit quarterly groundwater monitoring report <br /> DISCUSSION <br /> On October 28, 2004, Gettler-Ryan Incorporated (G-R) performed 4Q2004 groundwater monitoring <br /> and sampling G-R's groundwater monitoring report is included in Attachment A Depth to <br /> groundwater across the site ranged from 5 52 to 7 94 feet below ground surface (bgs) Groundwater <br /> elevation across the site increased an average of 0 68 feet from the previous sampling event <br /> Groundwater flow was calculated to the northwest at an approximate gradient of 0 007 feet per foot <br /> ft/ft A summary of total petroleum hydrocarbons as diesel (TPHd), total petroleum hydrocarbons as <br /> gasoline (TPHg), benzene, methyl tertiary butyl ether (MtBE) laboratory analytical data is presented <br /> below <br /> i <br /> 14Chevron1986324Penodic Monitonng120041402004 QMR 98632 doc SECOR International Incorporated <br />