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Advanced <br /> GeoEnvironmental, Inc . <br /> o/ Northern California <br /> 08 August 1997 <br /> AGE-NC Project No. 95-0132 <br /> Mr. Bruce Askansas <br /> SAN JOAQUIN COUNTY PHS-EHfid" P�9 D PFPFN T <br /> 304 East Weber Avenue rs <br /> Stockton, CA 95202 AUG 6 1997 <br /> Subject: Work Plan for Well Abandonmenb'Destruction SAN JOAQ iN CCFJNI° <br /> N € TaErir <br /> CAL-WEST CONCRETE CUTTING ENVIRONMENTAL HALuNKY, <br /> 1153 Vanderbilt Circle, Manteca, California <br /> Dear Ms. Lasorio: <br /> At the request of air. hick Cissel of Cal-West Concrete Cutting,Advanced GeoEnvironmental, Inc. <br /> (AGE)has prepared this wort: plan for the abandonment of three ground water monitoring wells at <br /> 1153 Vanderbilt Circle in Manteca, California. <br /> .Also enclosed is a well destnction permit and the associated permit fee. We have tentatively <br /> scheduled abandonment procedures to commence on 13 August 1997. <br /> INTROD UCTION/BACKG ROUND <br /> Three 2-inch diameter ground water tnoniloring wells were installed as part of a subsurface <br /> investigation ofthe former underground storage tank (UST) area at the site. The location of the site <br /> is illustrated in Figure 1 - Location Map.Each monitoring well was installed to a depth of <br /> approximately 30 feet below surface grade(bsg). In accordance with the San Joaquin County Public <br /> Health Service - Environmental Health Division (PHS-EIID) letter dated 17 July 1997, all three <br /> monitoring wells at a 1153 Vanderbilt Circle must be properly abandoned to obtain final conditional <br /> site closure. Ground Nvater monitoring well locations are.'illustrated on Figure 2 -Site Plan. <br /> PROCEDURES <br /> In preparation for abandonment, each well cover box or monument cover will be removed. Each well <br /> will be filled with grout; a pressure will be applied to each well for approximately five minutes to <br /> ensure grout penetration into the filter pack. After the filter pack has been penetrated, each well will <br /> 1803 West March Lane,Suite A,Stockton,California 95207 <br /> Telephone(209)956-0264 FAX(209)956-0700 <br />