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i•11 S �C � Aarnlraw IITe+t T��-I. <br /> me -rut Two t uc s es T <br /> ❑❑ <br /> 'U <br /> Wc�S �� IOU ' TaT�L �P`T}#• PC.�4.��GROUNDWATER L-0 T �r-r k"to--si or— Yo J N c9t> PN Y-n41r44- <br /> �� TECHNOLOGY, INC! :"-e. <br /> OIL RECOVERY 1832 Tribute Road Suite G Sacrament <br /> COVE SYSTEMS o, Ca6fornis 93815(916)921-1800 <br /> e� <br /> 55 9fro •ooy���a�oc� <br /> June 24 , 1987 E i D <br /> Project No . 202175-3284 M4 301987 <br /> EA Cti;;INErrlr1C.SM- CE. ANO <br /> VVESTI:,^,N I;LG:U;iAL,;:•[;1CATIpNO <br /> Mr . Darrell Hovander <br /> Chevron USA, Inc . <br /> 2 Annabel Lane , suite 206 <br /> San Rayon , CA 94583 <br /> RE : Chevron Service Station No. 7780 <br /> wC,tacktan, California <br /> Dear Mr . Hovander : <br /> Enclosed are laboratory results of the soil samples <br /> collec4ed from the material excavated from the tank pit and <br /> Information on well locations within one mile of the former <br /> Chevron Service Station No. 7780 , located at 3246 East Fremont <br /> Street , Stockton. California , <br /> Soil samples were obtained at approximately five feet below <br /> the soil pile surface with a hand operated auger . The samples <br /> were collected at six points from the pile and composited to form <br /> two samples for laboratory analysis . These were sealed, capped , <br /> Packed on ice in an insulated. cooler and transported under <br /> chain-of-custody to GT Environmental Laboratories for analysis . <br /> The two composite samples were analyzed for total hydrocarbons <br /> (THC) , and benzene. toluene . and xylene (BTX) using EPA methods <br /> 5030 , 8020 , and 8015 . Results from the soils analyzed recorded <br /> no concentration of THC or BTX above the analysis Method <br /> detection limit of 0 . 5 parts per million (ppm) (see Appendix I , <br /> Laboratory Analysis Results) . <br /> A survey of water wells located within a one-mile radius of <br /> the site was performed using available data collected from the <br /> California Department of Water Resources , Review of this <br /> Information 'indicates that within a one-mile radius of the site . <br /> there are three municipal wells and eleven domestic wells . The <br /> closest well is a• domestic well which is located approximately <br /> 1000 feet north and down gradient of the site . The closest <br /> municipal well is located approximately 2500 feet to the east and <br /> cross gradient of the site (see Figure 1 . Well Location map) . <br /> QJka A+nmo smi rhe V.S., Canada and Owrrras <br /> Wmlem 40'm(n.Omwod.CA;r m"m. CA;E*Omv*d, 00;rmpe,AZ <br />