Laserfiche WebLink
f t <br /> SECOR www secorcom <br /> INTERNATIONAL 3017 Kilgore Road,Suite 100 <br /> ECOR INCORPORATED Rancho Cordova CA 95670 <br /> 916 661 0400 TLL <br /> 916 861 0430 FAx <br /> January 16, 2003 J' <br /> C <br /> E <br /> � <br /> .1A N 1 7 2003 a <br /> Margaret Lagorio <br /> San Joaquin County ENVIRONMEiV I dbALTH <br /> Environmental Health Department PERMIT/SERVICES <br /> 304 East Weber Avenue, Third Floor 3 <br /> Stockton, CA 95202 <br /> RE Chevron Groundwater Monitoring Report (4Q2002) � J �' <br /> Chevron Station 9-1452 <br /> 334 East Main Street <br /> Ripon, California <br /> SECOR Project No 77CH 00000 00 0004 �v v1 <br /> Dear Ms Lagono <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 334 <br /> East Main Street, in Ripon, 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 /> t <br /> f <br /> DISCUSSION 4� <br /> This groundwater monitoring and sampling event was performed by Gettler-Ryan Inc on November <br /> 19, 2002 Nine wells were sampled during this event Benzene was not detected in any of the <br /> samples collected from the nine wells Total petroleum hydrocarbons as gasoline (TPHg) were <br /> detected twice at concentrations of 930 micrograms per liter (ugll) in the sample collected from MW- <br /> 5S and 1,900 ugll in the sample collected from MW-6S Methyl tertiary-butyl-ether (MtBE) was <br /> detected three times at concentrations of 120 ug/l in the sample collected from MW-4, 19,000 µg11 in <br /> the sample collected from MW-5S, and 27,000 pg/I in the sample collected from MW-6S Depth to <br /> water across the site decreased an average of approximately 1 4 feet from the previous sampling <br /> event Groundwater flow was to the northwest at 0 0006 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 /> 14Chevron1914521Penodjc Monrtorfngti20021402002 OMR doc SECOP International Incorporated <br /> J <br />