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AMBRIA <br /> sample collected Up to1VJ: <br /> 2 to �FB]�s detected in soil samples collected from wells <br /> MW-1 and MW-2, no 3 was detected in soil samples collected from well MW-3 <br /> Investigation activities and findings are documented in Cambna's April 27, 1998 Well <br /> Installation Report MTH Lvllsd PILy )n lrlGrJ / (/S S-/G v �' <br /> 2000 Well Survey Cambria completed a well survey for the site vicinity during June 2000 <br /> Cambria reviewed City of Manteca Public Works Department, and California Department of <br /> Water Resources (DWR) data to complete the well survey Several wells were identified in the <br /> site vicinity, including a municipal well located approximately 1,500 feet south of the site The <br /> well survey was originally reported in Cambria's June 30, 2000 Well Receptor Survey <br /> 2000 Cone Penetrometer Testing(CPT)Boring,installation: During December 2004, Cambna <br /> advanced six CPT borings to determine the extent of hydrocarbons and MTBE detected in soil <br /> and groundwater beneath the site No TPHg, benzene, or MTBE was detected in any of the soil <br /> samples collected during the investigation Depth-discrete grab groundwater samples were also <br /> collected from several depths in each CPT boring No TPHg or benzene was detected in any of <br /> the grab groundwater samples MTBE was detected in only one grab groundwater sample - /•6h' jL <br /> collected from 24 fbg in bonng CPT-3, no MTBE was detected in grab groundwater samples �� <br /> collected from 33 and 43 fbg in boring CPT-3 Investigation activities are documented in <br /> Cambria's February 15,2001 Site Investigation Report <br /> 2004 UST Removal- Two 15,000-gallon fiberglass gasoline USTs, associated fuel dispensers <br /> and piping, and one 550-gallon waste oil tank were removed from the site during <br /> December 2004 No TPHg, benzene, toluene, ethylbenzene,or fuel oxygenates were detected in <br /> soil samples collected beneath the dispensers, product piping, or fuel USTs No TPHg,benzene, <br /> toluene, ethylbenzene, or xylenes (BTEX), Fuel oxygenates, chlorinated hydrocarbons, or PCBs <br /> were detected in the soil sample collected beneath the waste oil tank TPHd was detected in each <br /> of the samples collected beneath the hoists and beneath the waste oil tank at concentrations <br /> ranging from 2 7 to 22 ppm Total recoverable petroleum hydrocarbons (TRPH)was detected in <br /> soil samples collected beneath the hoists at concentrations ranging from 13 to 86 ppm.'No <br /> BTEX or PCBs were detected in soil samples collected beneath the hoists- Tank removal <br /> activities were reported in Cambria's February 11, 2005 Underground Storage Tank Removal <br /> Report r <br /> Groundwater Monitoring Program. There are currently three groundwater monitoring wells at <br /> the site Groundwater samples at the site are analyzed for TPHg,BTEX, and MTBE At Shell's <br /> 0323 3 <br />