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ATC Associates Inc. <br /> 1117 Lone Palm Avenue, Suite B <br /> " ?( o if <br /> 201=15�rn95351 <br /> v ii <br /> S j�py 1C of 209 579-2225 <br /> A S S 0 C d A T E S I N C: ° r 7 <br /> iCa L <br /> � TFiI'' � <br /> er€ :: t ii i <br /> E$v�.tLii# +�Ef' <br /> NE <br /> NI <br /> November 2, 2005 <br /> 54.17861.000 i <br /> Mr. Nuel Henderson <br /> San Joaquin County's <br /> Environmental Health Department <br /> 304 E. Weber Avenue, 3rd Floor - <br /> f Stockton, CA 95202 <br /> i <br /> 4 <br /> Subject: Fourth Quarter 2005 Groundwater Monitoring Report for the Fayette <br /> Manufacturing Site, 7675 West Eleventh Street, Tracy, California <br /> Site Code: 2233 <br /> { Dear Mr. Hendersons <br /> As required by the!San Joaquin County Environmental Health Department (SJCEHD), ATC <br /> i <br /> Associates Inc. (ATC) has prepared this letter report summarizing- the fourth Quarter 2005 <br /> groundwater monitoring and site activities performed at the above referenced site (Figure 1). <br /> Sampling was performed to monitor the distribution of petroleum hydrocarbons in groundwater. <br /> Monitoring was performed to evaluate the groundwater flow direction and the hydraulic gradient <br /> in the uppermost aquifer. <br /> SITE LOCATION': <br /> 1 The project site is located at 7675 West Eleventh Street, between MacArthur Drive and Chrisman <br /> Road, in Tracy, California. The site location is shown on Figure 1. The vicinity of the site is <br /> ! <br /> primarily a commercial and industrial area. The property is owned by Dr. A.R. Glover. <br /> The site is located on generally level terrain which slopes gently toward the Tom Paine Slough, a <br /> northwest trending extension of the delta located approximately 2.5 miles north of the site. <br /> i <br /> BACKGROUND <br /> On October 15, 19816, two 500-gallon gasoline underground storage tanks (USTs) were removed <br /> from the site. During removal of the USTs, petroleum product was noted in the southern UST <br /> excavation (Figure 2): Soil samples were collected from two feet below the bottom of the USTs, <br /> f and petroleum constituents and lead were detected in the soil samples. <br /> s:\Environmental\17861\reports\4gmr2005.doc 1 <br /> i <br /> fi <br /> i <br /> f <br />