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EXCAVATION INFO TION <br /> Soil was excavated by: Stone and Webster Date: 10=4 <br /> Shoring was requited:[ X ] Yes [ ] No <br /> Type of shoring used: Stip shoring excavation=Us.Steel box nut into excavationint f®r Rr®tection of <br /> the pereon boriWhe conte and coLlectin®soi a30„ples. <br /> Soil types encountered within the tank excavation: <br /> 0 - 2 ft. Silt and 5MYd <br /> 2- -11 ft. Bmwn silt and c1T <br /> Describe any potential contaminant pathways such as tree roots or underground utility lines <br /> discovered in the excavation: <br /> Describe any odors or staining found in the fill material or native soil: Diesel fuel smell was <br /> evident in the fill material around the to of the tank. <br /> Soil Disposal Information: <br /> [ ] Not Applicable. (Soil and backfill placed back into the tank excavation and piping trench) <br /> The volume of disposed soil: = cubic yards(includes fill,asvhalt,and concrete) <br /> The soil was transported by: Stone and Webster <br /> The soil was disposed of as: Class II and Class III Cover (Soil Asphalt,and Concrete) <br /> Date: Ione 24 -25,1996 <br /> The concrete tank anchoring structure(s)was disposed of with the soil: <br /> [ ]Yes [ ]No [ X ]Left in the Tank Excavation <br /> If no,describe how the concrete tank anchoring structure(s)was disposed of. <br /> Name and address of disposal facility:_ NIA <br /> Additional native soil removed as part of a remedial effort.[ ]Yes [ X ]No <br /> Volume of native soil removed: 7.5 cubic yards <br /> Volum of backfill removed: M cubic yards <br /> Describe how the excavated soil was handled(i.e.how and where it was stored). stored on and <br /> tinder vlaific shafing south of Building 866. <br /> Soil or backfill returned to the tank excavation or piping trench: [ ]Yes [ X ]No <br /> If yes,volume of soil returned to the excavation: cubic yards <br /> Reason for the return of the soil to the tank excavation or piping trench: WA <br /> VIRONMENTAL SAMPLE INFORMATION <br /> SOIL <br /> Soil sample collection and handling procedures were in accordance with LLNL Tank Assessments <br /> and Guidance Group Procedure 203,Soil Sampling. <br /> Soil samples were collected by. ML Marion Heaton Date: 10/28/94&c 12/12/94 <br /> Sample analyses requested: TPH-diewl.and BIKE <br /> Nam and address of analytical laboratory: California LaboratW Services,3249 Fitzgerald Road. <br /> Rancho Cordova,CA 95742 <br /> Describe how the tank excavation was secured after soil sample collection: A chain-link fence was used <br /> to secure the excavated area. <br /> 2 <br />