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n <br /> IRA <br /> r, 3'.1:1 T .1-RV ICE <br /> HHV 12 PM 1: 00 <br /> November 08, 1999 <br /> San Joaquin Environmental Health <br /> Mr. Jeff Wong <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 ' <br /> RE: REVISED WORKPLAN FOR OVEREXCAVATION ACTIVITIES <br /> AT JIFFY LUBE 1130 N:MAIN STREET 1VIANTECA CALIF. <br /> Our workplan is to include the following: <br /> 1. Prior UST removal sampling was performed at a depth of approximately 12' - 0" <br /> We anticipate overexcavating the area below the former tanks another 4' - 0" <br /> to 5' - 0" <br /> 2. The area overexcavated will be 12' - 0 long by 6' - 0" Wide <br /> 3. Soil generated will be stockpiled on site and covered with visquene (Approx. <br /> 15 to 18 cubic yards) <br /> 4. Sampling will be performed by licensed Geologist Lawrence and Associates <br /> and analyzed for TPHD/BTEX/TPHG BTEX and CAM 5 metals by 6010 PCB <br /> 5. Samples will be obtained from each end of former UST and (1) one composite <br /> stockpile sample <br /> 6. Upon San Joaquin Environmental Health approval; we will backfill with clean <br /> import and class II base, provide compaction <br /> 7. Any contaminated soil generated by overexcavation activities will be manifested <br /> and disposed of by Forward Landfill Stockton, CA <br /> u I� <br /> es"tunate start-date assoon as-wor pan-`is approved`to�expedite the c osure of — - <br /> open tank pits: <br /> Sincerely, <br /> Kevin Post <br /> URSA Engineering <br /> KP/dp <br /> urwlet/jiffy99 <br /> ENVIRONMENTAL CONTRACTING <br /> Lic # 726350 <br /> ® 3963 EASTSIDE ROAD REDDING, CA 96001. • (530) 241-5363 FAX (530) 241-11515 <br /> �Il��gl'�GO <br />