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1117 Lone Palm Avenue <br /> Q Suite B- <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 /> June 3, 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 First Quarter 1999 Groundwater Monitoring Report for Kang Island Resort, 11530 <br /> West Eight Mile Road, Stockton, California Site Code 1557 <br /> Mr Infurna <br /> This letter report is presented to update site activities performed during first quarter 1999 at 11530 <br /> West Eight Mile Road, Stockton, California(Figure 1) Site activities included quarterly groundwater <br /> monitoring and sampling, well box repair, and resurveying well elevations <br /> GROUNDWATER MONI'T'ORING <br /> The first quarter groundwater monitoring and sampling of monitoring wells MW1 through MW6 was <br /> conducted by ATC Associates Inc personnel on March 4, 1999 Water level measurements were <br /> collected from all monitoring wells prior to purging and sampling Well locations are shown on Figure <br /> 2 <br /> i <br /> Subsequent to monitoring, each well was purged by extracting a minimum of three well casing volumes <br /> of groundwater While purging, groundwater parameters (temperature, conductivity, and pH) were <br /> monitored and allowed to stabilize before water samples were collected Samples were collected using <br /> dedicated, disposable bailers with bottom emptying devices to reduce volatilization All purged <br /> groundwater was contained in 55-gallon drums approved for hazardous liquid storage on-site pending <br /> appropriate disposal Groundwater well purge and sample logs are contained in 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 #1210) in Redwood City, California <br /> The groundwater samples were analyzed for total petroleum hydrocarbons as diesel (TPHd), total <br /> petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX) and methyl tertiary butyl ether (MTBE) utilizing EPA methods 8015/8020 <br /> w wzsia uwt] \t -1999 doc 1 <br /> vi Y w <br />