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Advanced •� <br /> GeoEnvironmental Inc. ' <br /> of N(whent Calffiornt.a <br /> 30 October 1997 <br /> AGE-NC Project No.96-0217 ' <br /> RFCEI ED <br /> Mr.Mike Infuma OCT 31 1997 <br /> SAN JOAQUIN COUNTY PETS-EHD <br /> 304 East Weber Street ENVIRONMENTAL HEALTH <br /> Stockton,CA 95204 PERMIT 1 SERVICES <br /> Subject: Work Plan addendum <br /> PALADIN M LEAGE CENT nR(Cemelos Property) <br /> 2421 Holly Drive,Tracy,California <br /> Dear Mr.Infuma: <br /> In accordance with the request of ivlr.John Gemelos,Advanced Geo£nvironmental.Inc.(AGE)has <br /> prepared this Work Plan Addendum for 2421 Holly Drive in Tracy, California(the site). The <br /> location of the site is illustrated on Figure 1.A plan of the site is illustrated on Figure 2. <br /> The work is performed in accordance with San Joaquin County Public Health Services - <br /> Environmental Health Division(PHS-EHD)and Central Valley Regional Water Quality Control <br /> Board guidelines for investigation of underground storage tank(LUST)sites. <br /> BACKGROUND <br /> The historical information for the site including the results of the installation and sampling of the <br /> three ground water monitoring wells at the site was presented in the Preliminary Investigation and <br /> Evaluation Report(PIER)dated 16 October 1996. <br /> According to the San Joaquin County Flood Control Department, the historical depth to ground <br /> water in the northern Tracy area new the site has remained above 10 feet below surface grade(bsg). <br /> During the UST removal in 1988,water was encountered at a nine feet bsg. Data from a UST <br /> investigation in the area of the site,collected from monitoring wells 1988,indicated that ground ,y <br /> water was five feet bsg. Q <br /> SAN JOAC»UIN COUNTY <br /> ENVI90,14MENTAL HEALTH DIVISION <br /> 3A E.Weber Ave.Cir Floor <br /> P.O.Box 388, Sto&to 4952 388 <br /> 1803 West March 1.aae.Seise A.Stockton,Califomia 95207 Phone: (249) 6i A <br /> Telephone(209)956-0264 FAX(209)956-0700 <br /> *Ap;proved with changes: See Remarks <br /> ❑Disapproved: See Remarks <br /> Remarks <br /> Date <br /> Approval of these plans exten s only to that <br /> which is shown and described hereon bit <br /> does not authorize or approve any omission <br /> or dRviation of requirements of State laws or <br /> Local Ordinances. <br />