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11/09, 1999 12:41 530243" 1500 URSA ENGINEERIi PAGE 02 <br /> �:::2s <br /> Al <br /> November 08, 1999 <br /> San Joaquin pwjwwn,ermd Health <br /> lvlr.Jeff Wow <br /> 304&W webtr Avenue,Third floor <br /> StocktoN CA 95202 <br /> RE: REVISED woRKPLAN FOR OVEREXCAVATION ACTIVITIE8 <br /> AT JIFFY LUBL 1130 N.MAIN STREET MANTECA CALIF. <br /> Our workplan is to include the following: <br /> 1. Prior UST removal=Wiling was performed at a depth ofapproximately IT - 0" <br /> We anticipate overexcavating the area below the former tanks another 4'-0" <br /> to 5'-V" <br /> 2. The ecru over+excavated wW be IT-0" long by 6-0" Wide <br /> 3. Soil genmuke+d will be stockpiled on site and covered with visquene(Approx. <br /> 15 to 18 cubic yards) <br /> 4. Sig will be performed by licensed Geologist Lawrence and Associates <br /> and analyzed 1iir TPHDBTEXf TPHG DTEX and CAM 5 metals by 6010 PCB <br /> 5. Saavbs will be obtained from each end of former UST and(I)one composite <br /> gi;pile sample <br /> 6. Upon San Joaquin Environmcntal Heakh approval::we will backfill with clean <br /> import and class II lase,provide compaction <br /> 7. Any coed soil generated by overexcavaWn activities wdl be mwdested <br /> and disposed of by Forward Landfill Stockton,CA <br /> We esdmae start date as soon as workplan is approved to expedite the closure of <br /> open tank pits. <br /> Since lyp <br /> Kravis Post <br /> URSA ming <br /> KPldp <br /> ENVIRONMENTAL CONTRACTING <br /> Lite & 726350 <br /> 04 3963 EMTSIDE ROAD • REDDING, CA 46001 - (530) 241-5363 —FAX (530) 241-1155 <br /> Q K <br />