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It <br /> 4 <br /> Z. k 10 <br /> Additional' '�.` _ r r .� Fr <br /> it <br /> T <br /> , i"i�iW'6rlank <br /> r <br /> -ners '. <br /> Tor <br /> ea <br /> mer WssDubb&'O " <br /> Irl, L _348 West Harding',,Way, Stockton;Cafiforini*-%', <br /> ij' -SCOPE T D OF WORK <br /> .0. INA <br /> TRODUCTION _N <br /> At the'request-of Mr.'.Peter Wallace;;Advanced GeoEnvironmentd], Inc. (AGE)-has,prepared this <br /> l <br /> work,plan f'oradditi'o'iial.,ffiv6stig;iilop'-,at ihe46n-her HeSSLE�iil�OiS'Cleaners located l�at,348 Wqs.t <br /> Hardin ay kj O'A California'­The loc ion6�the'site,is illustrated in Figurd f and aplan'of <br /> Harding in Stockton; Vit <br /> the site JSL'46picted,jin Figure <br /> The,scope,of work-includes,the installation of up,t1p ten pWed"soil borings using CPT technology.to. <br /> charact'lerize litholoky,'model potential'coniaminant b7iigration pathways and assess the vertical an <br /> lateral extent of jTPhcted groundwater. <br /> . , <br /> This Work Plan has been'' pr'e'pare'd as Tequired by the,San:Joaquin County,Public Health Services - <br /> -�ision'(PHS-EHD) by letter dat�d 03-December'200 1, and is prepare <br /> Environmental Health Di in <br /> accordance with Central.Valk Regional Water Quality Control Board(CVRWQCB)guidelines f6r, <br /> Y ­ I <br /> 'the.subsurface investigation of underground stor�ge-tank (UST) sites. <br /> 2.0. BACKGROUND-AND SITE LOCATION <br /> The site is located in a business/residential area.of low topographic relief in Stockton,California.'The <br /> site consists of one L-shaped building along Harding Way and a base-rock paved parking area at the <br /> rear of the b site is presently occupied by a dry-cleaning business, a real esfate of&c and - <br /> sign asi ' company. <br /> 2"1'. UST REMOVAL <br /> 'Eight USTs were removed, the t EnergyAssociates <br /> from si site Falcon Ene ' (FEA) inJanuaky.1991. AGE <br /> -,hds beeffinformed that thetahks,contained stoddard solvents used in dry cleaning processes. . <br /> Tanks Nos, 1 through 7,,iw&e removed from a comm6n excavation along the'sotitfieffiorti' <br /> p on of the <br /> property.(tank pit No.1)... Tank No. .8 was removed from benea:th'the'sid6walk <br /> collected along.yan Bur <br /> ei <br /> Street.(tahk pit No.2).Anal�sis of soil samples fomtank pit No.Ij dicatednunauthonzed <br /> , <br /> Tlof`p <br /> release r'oleum hy&ocarb6ns' petroleum lHydrocarbons df -bons Were not detected in- the samples. <br /> collect - <br /> I . e't _ - <br /> 'ed froin tank pit No.'2. <br /> _7 <br /> t <br /> SITE-ASSESSMENT/INSTALLATION OFGROuND,WATER MONITORING WELLS, <br /> Over an 8-year assessment period,atotal of eleven grouted water'mo nitoring/extractionw elis and two <br /> so 'fla I �"efi installed anh6 site to a!sse's's,`the.v'ertical and later, 4'i acted soil aril <br /> orings ve.!) a]extent <br /> Advai&d C".1tilvirorim n 24 111c: <br /> C.t <br />