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z <br /> Di Salvo Truck Lines-OEXnW <br /> _ - 3une?1;'1993 <br /> Page-5- <br /> samples will be collected from the over excavation. Each sample will°be collected using-a clean,brass - <br /> sleeve. The soil sample will be immediately sealed with Teflon,tape,°capped, wrapped with duct tape, <br /> labeled, and platen in£a cooler,chilled with real-ice.for storage. The sod samples will be shipped <br /> L <br /> following chain-of-custody procedures to`GeoAnalytical Laboratories n' .Modesto, California, for analysis. <br /> Sample locations and final dimensions-of the over-excavation will-156mapped using a laser range-finder <br /> utilizing Penmap® software. Disposal of hazardous materials, if any, will be the-responsibility of Di <br /> Salvo Trucking. <br /> 4.0 -LABORATORY ANALYSES L <br /> -- _-= <br /> The sail and water samples collected foranalysesfrom the_Di Salvo site will be delivered to <br /> GeoAnalytical Laboratories -Inc.,.a Callfoinia certified.laboratory,`in'Modesto,`California. The soil = <br /> _.. EPA Methal $020 : <br /> samples.will b--e <br /> rtalyzed:for-`Benzene, toluene,.ethyl benzene, and.xylene (BTEX) by , <br /> and for.total extractable hydrocarbons, quantified as kerosene,diesel and motor oil (TEPH) by Method <br /> 3550/LUFT.=The groundwater sample will.be analyzed for BTEX by,EPA Method:602 and for TEPH by <br /> n . <br /> Method 351 AUFT. Table I lists the la66fatory detection limits for each of the above described <br /> constituents _ <br /> TABLE X n <br /> Laboratory Detection Limits <br /> B T E X _ ,TEPH <br /> Rs - 'Kerosene- Diesel •Motor.Oil <br /> SOIL 5.0 5:0 5.0_ 5.0 1 0 ; 0 1'0.0 <br /> L g $ µg/kg g/kg :'.Mg/kgm g .mg/kgµS/kS <br /> -WATER 0.5 0.5 0.5 0.50 O5 - 0.05 0.5 j <br /> lag/1 wg/1 µg/1 n/1 r MO mg/i _ mgfl 1 <br /> .j _ <br /> 5.0 BACKFILL - - <br /> OES will backfill of the excavation with=aggregate to approximately static water level. The <br /> excavation will then be.lined with a g6-textile fabric: _The remainder of tlic excavation will be _ <br /> backfilled with clean soil from on site and,- if.necessary,-imported material. :The fill material will be <br /> compacted,durinbackfilling and brought uPto grade..7Following oom l_e.tion of,backfillin , the <br /> excavation will be paved with asphalt <br /> LJ _ CONDOR <br /> L 7 <br /> - �- <br />