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Ultramar <br /> Ultramar Inc. Telecopy: 209-584-6113 Credit&Wholesale <br /> P.O.Box 466 209.583-3330 Administrative <br /> 525 W.Third Street 209-583-3302 Information Services <br /> Hanford,CA 93232-0466 209-583-3358 Accounting <br /> (209)582-0241 <br /> February 14, 1991 <br /> Ms. Eleanor Ratliff <br /> San Joaquin County Local Health District ° $ <br /> Environmental Health Division 's <br /> P.O. Box 2009 ,cZI ,- `' A <br /> Stockton, California 95201 ,a° <br /> l <br /> SUBJECT: WELL DESTRUCTION AT PROPERTY ADJACENT TO BEACONv 'IA1695' ' <br /> 800 EAST HIGHWAY 12, LODI, CALIFORNIA _' <br /> Dear Ms. Ratliff. <br /> We have prepared this letter as a formal request to properly destroy 5 <br /> monitoring wells located on property adjacent to the above-referenced <br /> Ultramar facility. The wells were initially drilled by Conoco Inc. as <br /> ground-water monitoring wells but have subsequently gone dry due to <br /> current drought conditions in the state. <br /> The wells (MW16R, MW-17R, MW-18R, MW-22, and MW-29) were drilled to <br /> approximately 50 feet and were incorporated by Conoco into a vapor <br /> extraction remediation system on the station property. Historic vapor <br /> testing by DuPont Environmental Remediation Services and recent testing by <br /> our consultant (EVAX Technologies) show that these wells are no longer <br /> necessary to be included in vapor extraction remediation as offsite wells _ <br /> showed nondetectable concentrations of hydrocarbon vapors (see attached <br /> EVAX Vapor Concentration Site Map) . <br /> Additionally, as you are probably aware, the adjacent property to the east <br /> and south is currently being permitted for major development into a <br /> shopping-center. Our concern is' that these wells will inadvertantly be <br /> sheared off near the surface by earth moving equipment and will then have <br /> to be located to facilitate proper well destruction. <br /> BEAC=::-N <br /> j A Member of the Ultramar Group of Companies #1 Quality and Service <br /> Itrarr�ar <br />