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ENVIRONMENTAL HEALTH DEPARTMENT <br /> 'OPgU t►V...CO <br /> SAN JOAQUIN COUNTY <br /> Donna K. Heran,R.E.H.S. SAN <br /> Coordinators <br /> Director 304 East Weber Avenue,Third Floor Carl Borgman,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. Stockton,California 95202-2708 Mike Huggins, R.E.H.S.,A.D.I. <br /> Di <br /> i <br /> Assstant rector Morio R.E.H.S.ar Margaret La <br /> Telephone: (209)468-3420 g g <br /> Robert McClellon,R.E.H.S. <br /> Fax: (209)464-0138 Jeff Carruesco,R.E.H.S. <br /> Website:www.sjgov.org/ehd/ Kasey Foley,R.E.H.S. <br /> CHARLES MILLER PALISADES GAS AUG 0 3 2006 <br /> USA PETROLEUM CORPORATION <br /> 30101 AGOURA COURT STE 200 <br /> AGOURA HILLS CA 91301-4311 <br /> RE: USA GAS #835 Site Code: 1072 <br /> 2705 Country Club Blvd. ROM 01504 <br /> Stockton, CA 95204 - <br /> WORKPLAN: Well Installation Work Plan <br /> DATED: April 7, 2006/Addendum July 21, 2006 <br /> PREPARED BY: Stratus Environmental Inc. — Gowri Kowtha, P.E. <br /> STATUS: APPROVED with conditions noted below. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN [Health & <br /> Safety Code (H&S) Section 25296.10(c)(3)1: <br /> • Install five (5) offsite and six (6) onsite first and second zone 2-inch <br /> PVC monitoring wells for continued lateral and vertical plume <br /> investigation as required by EHD. <br /> • Second zone wells (6) to be installed inside a conductor casing as <br /> required by EHDto seal off/isolate upper zone contamination and, <br /> • Collect and analyze soil samples for TPI-Ig (8015m), BTEX and <br /> Oxygenates (MtBE, TBA, TAME, EtBE, DIPE, 1,2-DCA) by EPA Method <br /> 8260B and, <br /> • Submit report of findings to EHD. <br /> COMMENTS AND CONDITIONS: <br /> • Conductor casing to be `centralized' in 15-inch borehole and its <br /> outer diameter shall not exceed 10-inches overall. <br /> • Report of findings to be in the format of a Site Conceptual Model <br /> utilizing ALL soil and ground water data collected to date for this <br /> site. Enclosed please find an attachment that describes the <br /> minimum information to be included in the report. <br />