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r } t <br /> `V 4 <br /> Q � 1117 Lone Palm Avenue <br /> Suite S- <br /> '' Modesto CA 95351 <br /> 209 579 2221 <br /> Fax 209 579 2225 <br /> } A S S O C I A T E S I N C <br /> r f JI <br /> � 3a <br /> December 22, 1999 <br /> 62514 <br /> Mr Michael Infuma <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, 3rd Floor <br /> Stockton, CA 95202 <br /> Subject Third Quarter 1999 Groundwater Monitoring Report for King Island Resort, 11530 <br /> West Eight Mile Road, Stockton, California Site Code 1557 <br /> Mr Inluma <br /> This letter report is presented to update site activities performed during third quarter 1999 at 11530 <br /> West Eight Mile Road, Stockton, California (Figure 1) Site activities included quarterly <br /> groundwater monitoring and sampling and reporting <br /> GROUNDWATER MONITORING <br /> The third quarter groundwater monitoring and sampling of monitoring wells MW1 through MW6 <br /> was conducted by ATC Associates Inc personnel on September 2, 1999 Water level <br /> measurements were collected from all monitoring wells prior to purging and sampling Well <br /> locations are shown on Figure 2 <br /> Subsequent to monitoring, each well was purged by extracting a minimum of three well casing <br /> volumes of groundwater While purging, groundwater parameters (temperature, conductivity, and <br /> pH) were monitored and allowed to stabilize before water samples were collected Samples were <br /> collected using dedicated, disposable bailers with bottom emptying devices to reduce volatilization <br /> All purged groundwater was contained in 55-gallon drums approved for hazardous liquid storage <br /> on-site pending appropriate disposal Groundwater well purge and sample logs are contained in <br /> Attachment 1 <br /> The groundwater samples collected from each well were placed on ice and transported under <br /> chain-of-custody documentation to Sequoia Analytical (ELAP 41210) in Redwood City, <br /> California The groundwater samples were analyzed for total petroleum hydrocarbons as diesel <br /> (TPHd), total petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, and <br /> xylenes (BTEX) and methyl tertiary butyl ether (MTBE) utilizing EPA methods 8015/8020 <br /> w 1625141quartlyl3gr-1999 doc I <br /> Yt <br />