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1Dl. TH0RPE. 01L. iNC 209 003 1351 P , OZ <br /> 1-co 1SS5 19 3AM FnuM• TO . X681251 0102 <br /> WORE(i0 BE PEERFORMED <br /> :i <br /> TASK 1 PUANNING ANO PERMITS <br /> A.; Prepare a bnaf project workplan including a site plot plan drawn M scale. <br /> 8. Prepare a mile health and safety plan. <br /> C.I Submit ;he workoian, the health and Seery, plan, a scnGdule of implementation, a body of tha completed and <br /> approved permit to badmtl from the C;ty of Stockton to San Joaquin County Public Health Services. <br /> csvironmental Hearth OWlsion (PHSIEHO) for review. <br /> TASK 2 SOIL STOCKPILES, CALCULATIONS, SPECIFICATION OF BACKFILL AREA ANO MATERIAL <br /> A.! Describe the existing excavation d mensionx:lennth,width and average depth in feet_Corns-!ete the dimensions <br /> report by providing the �tculated &red In cubic feet <br /> B.; Describe the excavation after removing vegetation ordabrle which may interfere witb placement and compaction <br /> Of deah ICwpermeabitity imported nIL Cakulat and report the estimated new dlimansions(area by length,width <br /> and depth) including the number of cubic yards of soil which will be generated as a result of debris removal. <br /> Cover all soil atOC!tDiles as needed to <br /> prevent uncontrolled fugitive amasions. Complete the reportwith a plot <br /> Plan of the sit-drawn to ScMe hldlcaling orlglntil excavation dimensions, new overall excavation dimensions as <br /> backfilled, and positions of stockpiles. <br /> TASK 3 LABORATORY ANALYSIS <br /> Sufficient soil samples mus:be secured and analyzed In a State Certified laboratory to fully tharade,,e the <br /> concentratlon and distribution Ot the contaminants in the subsurface of the axravabor, (one per 2011ne41 feet of <br /> Side wail and drill bOgOm) and soil V=12ifes (peed 2 samples per 50 cubic yards for In laboratory <br /> comoositino). Tha detection writs used by the laboratory shall be In aceordanoewith those in the LUFT Manual. <br /> B A71 309 sampkes must be analyzed for Me ,following ccntaminant5: <br /> -total petroleum hycrocamons, diesel GC.FiD 355018015 <br /> 40121 petroleum hydrocarbons,gasoline GO F!D 5030!8015 <br /> -benzene, toluene, ethytbenzsne, xylene GC-PID 503018020 <br /> C. . The stockpile soil sample which yields the highest concentration of TPH as gasonne shall be analyzed for total <br /> lead. <br /> -ictal Lad AA 7420 <br /> TASK 4 5ACKF9LL OF CLEARED EXCAVATION <br /> A Priorto badcfdling obtain all nece55ary permas rorsxcavaten, backfill and grading. Utilizing dean imported low <br /> parmeabiftty 1111, bacx511 the Geared excavation employing Rife in fourlo six inch Increments and compactto City <br /> of Stockton Building Oepanment and Uniform Bulling Code standards. Finished grade shall slope away from <br /> the excavation and site surface to prevent ponding. Excavation to be backfilled. compacted and site graded <br /> by Thursday, November lit, 1995. <br /> TASK 5 BID PREPARATION <br /> A- : Prepa(9 a bid prOposal whlCi clearly indicates the units of measurement number of units, cost perunit and a <br /> total dollar amount for the activities noted. An data shall be presenmcf in tabular tom. Bid to be signed,eared <br /> and submitted to PHSlEHO by 5:00 pm Friday, November 10, ig9s. <br /> TASK o" REPORT PREPARATION <br /> A. he final recon snail summarize all site acvitias. Prepare a fins(reportwhich shall induce the tabulated site <br /> j measurarreft(excavation parametats and total volumes of soil removed and pieced,analytical results from the <br /> sampling and compaction testing). Af laboratory, analyses, bai site gracing information and copfas of <br /> compaction rapers shall be submidad to PHScc.HO within 20 days ofcompletion to receive timely mmpe_nsatbn. <br /> 2 <br />