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Advanced _ <br /> GeoEnvironmental, Inc. <br /> 09 December 1998 <br /> AGE-NC Project No.96-0236 <br /> Mr.`Hike Infuma <br /> San Joaquin County Public Health Services-Environmental Health Division <br /> 304 East`weber.avenue <br /> Stockton.California 95202 <br /> Subject: Revision to Work Plan Addendum-October 1998(dated 14 October 1998) <br /> BOULEVARD AUTOMOTIVE SERVICE <br /> 2151 Country Club Boulevard,Stockton,California <br /> Dear Mr.Infuma: <br /> A Work Plan Addendum (WPA) was previously submitted to the San Joaquin County Public Health <br /> Services-Environmental Health Division(PHS-EHD)by Advanced GeoEnvironmental,Inc.(AGE)on 14 <br /> October!998 for the installation of five ground water monitoring wells at the above referenced site. This <br /> revision is being submitted to adir comments made by the PHS-EHD in a letter dated 12 November 1998: <br /> 1. A minimum of three soil samples will be collected from each soil boring and submitted for <br /> laboratory analysis.Before soil samples are submitted for labomory analysis,PHS-EHD will have <br /> the opportunity to review the selected samples for laboratory analysis. <br /> 2. Soil samples selected for laboratory analysis shall be analyzed for total petroleum hydrocarbons <br /> quantified as gasoline(TPH-g),volatile aromatics(benzene,toluene,ethylbenzene and xylenes)with <br /> methyl tertiary buryl ether(MTBE)and fuel oxygenates. <br /> i Soil samples collected from the proposed soil boring located nearest the former underground storage <br /> tank(UST)area shall be analyzed for total petroleum hydrocarbons quantified as diesel(TPH-d)in <br /> addition to the above mentioned laboratory analysis. <br /> 4. A maximum of two-fect of sand(filter pack)shall be placed above the screened interval;the upper <br /> bentonite seal shall not be more than two feet above the top of the filter pack(See revised Figures <br /> 3 and 4). <br /> 5. The off-site ground water monitoring well proposed along the south side of Country Club Boulevard <br /> was originally proposed within San Joaquin County right of way.The property(2150 Country Club <br /> Boulevard)located nearest the proposed monitoring well is currently utilized as the Spot Free Car <br /> Wash(APN 123-090-33).1f the property owner is willing to allow access,then the offsite well is <br /> proposed as located on that parcel(See Figure 2).If the property owner does not wish to allow <br /> access,then AGE will proceed to install the monitoring well within the County right of way. <br /> 6. A tentative schedule of upcoming field activities is"follows: <br /> 14 December 1998.Submit work plan to State Water Resource Control Board,Clean Fund , <br /> -. for preapproval <br /> EN*VM-f01JM$:NTAL HEALTH DIV112!DN <br /> 4005 North`Nilson Way.Stockton.California 95205 "� :",. 'raj eber Ave.Third Floor <br /> Telephone(209)467-1006 FAX(209)467-1118 P.O. Sox 388, Stockton,C! 95201-0388 <br /> Phone: (209) 466-3420 <br /> r-; <br /> 0AMWe4vifth changes: See Remarks <br /> a y-;;roved: See Reinarks <br /> CrKP is / <br /> T —fes <br /> Ap.roval of these plans extendS only to that <br /> rt)jch is shown and ae�,,nbsd hereon but <br /> dt> 3 n,t a! thL lz.e or approve any orrassion <br /> or r ';;i F'l n of requirements of State laws or <br /> Lzjvai Ordinances. <br />