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� S <br /> F = _ Idlewild Karket Workplan <br /> April 8, 1944 <br /> _ - Page `3- <br /> F 3.0 PROPOSED SCOPE^ OF WORK r <br /> Structural damage.-to„the building is ,aikely_if- additional- <br /> over-excavation occurs .along-.the, .north-sidewall of .Pit.:3`. -Soil <br /> .h -- <br /> 7. <br /> borings are the most feasible method to determinelthe extent of <br /> soil contamination along themnorth - sidewall . of Pit ' 1 . <br /> - <br /> r <br /> The work proposed for `this}=investigation includes the <br /> _ ... r - <br /> - <br /> .- <br /> of£two vertical soil borings _and one <br /> drilling ( 1) angle soil <br /> T, - <br /> f boring_ (SBI_through- SB3)*located pas shown`in,Figure;0-. Prior to <br /> drilling, .. <br /> g, .the .site win l�bel --'off`�with,white paint and <br /> Underground Service Alert' (USA) , will be notified` 'o locate known <br /> underground utilities _ <br /> _ - The� soul=borings-wYll�:�be�clrilled';by] B and }Y <br /> = F Drilling-of: Rancho; CordovaCalifornia .(C57 License #519428) <br /> : z <br /> under the direct supervision `of a 'Condor geologist: .The <br /> boreholes will be drilled using 6-inch90.D ,...hollow, stem, <br /> continuous-flight augers The augers :will be steam cleaned prior' : T- <br /> ___ -to drilling each boring. _ <br /> i Soil samples'wi.11=be' collected from-Teach borehole at_'five <br /> �77 <br /> foot intervals -using a- California-modified, on 'sampler <br /> --- <br /> fitted with ._three (3-) clean brass sleeves: The split :.spoon will <br /> be thoroughly cleaned prior toaeach .sampling interval using a <br /> - = A <br /> Liquinox” wash and triple_Wrxnse with clean water The =boreholes - <br /> t _ <br /> will beiterminated at-a.total_depth of-�approximately -20 feet <br /> below the ground surface or at the groundwater capillary fringe, <br /> t whichever comes first. All soil -samples wYll be screened --in the <br /> CONDOR <br /> r _ <br />