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F . <br /> ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. <br /> Director 304 East Weber Avenue, Third Floor Carl Borgman,R.E.H.S. <br /> `? Al Olsen,R.E.H.S. Stockton, California 95202-2708 Mike Huggins,R.E.H.S.,R.D.I. <br /> • c ., v• Pro ram Manager Douglas W.Wilson,R.E.H.S. <br /> g g Telephone: (209)468-3420 Margaret Lagorio,R.E.H.S. <br /> Laurie A.CotuBa,RE.H.S. <br /> Program Manager Fax: (209) 464-0138 Robert McClellon,R.E.H.S. <br /> Mark Barcellos,R.E.H.S. <br /> EDNA MOORE NAR 1 5 2005 <br /> PROPERTY TERMINALS INCORPORATED <br /> 3839 MERRIMAC COURT <br /> STOCKTON CA 95219 <br /> RE: Moore Truck Lines Stockton SITE CODE: 1701 <br /> 3400 Newton Road RO: 677 <br /> Stockton, CA 95205 <br /> San Joaquin County Environmental Health Department (EHD) has reviewed Closure <br /> Summary Report, dated August 30, 2004, and prepared by Advanced GeoEnvironmental, <br /> Inc. (AGE) on your behalf. During a telephone conversation with William Little of. AGE <br /> on February 23, 2005,Nuel Henderson of EHD expressed concern over the impact the <br /> calculated mass of 1,749 pounds of gasoline will have at this site. It was agreed that AGE <br /> will recalculate the mass of gasoline, and if approximately the same mass is calculated, <br /> then AGE will prepare a model of the effects on groundwater from the leaching of organic <br /> contaminants through the vadose zone. <br /> EHD is also concerned about the high concentrations of trichloroethene (TCE) and <br /> tetrachloroethene (PCE) found in soil samples associated with the former waste oil <br /> underground storage tank (UST). Although TCE and PCE were detected during the <br /> removal of the former waste oil UST at concentrations as high as 490 micrograms per <br /> kilogram (µg/kg) and 2,100 µg/kg, respectively, these compounds have not been included <br /> in any additional investigations at this site. <br /> Prior to destroying the domestic well located approximately ninety feet southeast of the <br /> former UST system on October 16, 2000, a groundwater sample was collected, and upon <br /> analysis, was determined to contain 280 micrograms per liter(µg/L) total petroleum <br /> hydrocarbons as diesel (TPH-diesel), 1.0 µg/L toluene, and 1.1 µg/L xylenes. The <br /> laboratory report noted that the TPH-diesel appeared to be fresh or weakly modified diesel. <br /> This domestic well was estimated to have a total depth of approximately 160 feet below <br /> surface grade. Considering the close proximity of at least five other domestic wells,please <br /> have your consultant review all relevant data and show that the occurrence of diesel in this <br /> well does not represent an impact to deeper groundwater resulting from your unauthorized <br /> release. <br />