COMPLIANCE INFO_FILE 8 - Laserfiche WebLink

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CLOSURE REPORT FOR UNDERGROUND STORAGE TANK 805-DlUl Any piping closed in place: [ X ]Yes* [ ]No *(Piping closed in place under concrete slab with generator). Describe where the piping was closed in place,and how it was closed(e.g.grouted and capped): Fuel contents were drained into the tank,then the pWing at the edge of the concrete slab was cut and capped. The 12ii2ing section from the emer1egenerator to where it went into the concrete pad was also cut and can . Approximately 6-feet of under o d p-ig was left in-place under the concrete slab. s Underground concrete tank anchoring structure(s)were present: [ X ]Yes [ ]No Size and location of the concrete tank anchoring structure(s): 5-by 7-feet at a death of 9-1/2 feet. Description of tank and piping condition (corrosion,pitting, holes, etc.): The tank and 12jWne were in excellent condition. Photographs of the tank were taken by Marion Heaton(6/22/94). The tank and piping were transported by: Erickson,Inc. The tank and piping were disposed of as: Non-RCRA Hazardous Waste, Solid (Empty Containers Last Containing Diesel Fuel with associated in ). Date: 6/22/94 Name and address of disposal facility: Erickson Inc. (Hauler Registration No. 0019): 255 Parr Blvd.Richmond,CA 94801 (5 0)235-1393. [X] Uniform Hazardous Waste Manifest"TSD Facility to Generator"and LLNL Hazardous Waste Disposal Requisition copies for UST 805-DlU1 are enclosed as Appendix C. [N/A] UST Disposition Tracking Record enclosed (San Joaquin County Only). SJC Tank#39-1945-25. EXCAVATION INFORMATION: Soil was excavated by: PetroTek. Date: 6/22Z94 Shoring was required: [ ] Yes [X] No Type of shoring used: N/A. Soil types encountered within the tank excavation: 0-11 ft. Shy clay. Describe any potential contaminant pathways such as tree roots or underground utility lines discovered in the excavation: None. Describe any odors or staining found in the fill material or native soil: None. Soil Disposal Information: [ ] Not Applicable. (Soil and backfill placed back into the tank excavation and piping trench). The volume of disposed soil: N/A cubic yards. The soil was transported by: N/A The soil was disposed of as: N/A Date: N/A The concrete tank anchoring structure(s)was disposed of with the soil: [ ]Yes* [ ]No I [ ]Left in the Tank Excavation [ ]N/A *The concrete tank anchoring structure will be disposed of with the soil:however,the method of disposal has not yet been determined. If no,describe how the concrete tank anchoring structure(s)was disposed of. N/A Name and address of disposal facility: Not yet determined,as soil has not yet been disposed of. Additional native soil removed as part of a remedial effort:[ ]Yes [X]No [ ] LLNL Hazardous Waste Requisition and Uniform Hazardous Waste Manifest"TSD Facility to Generator"copy for the soil enclosed. Volume of native soil removed:. cubic yards. Volume of backfill removed: 8* cubic yards. *(10 cu.yds.comprised of both soil and backfill) Describe how the excavated soil was handled (i.e.how and where it was stored): The soil was stockpiled on,and covered with visqueen,and stored in the B805 area,at Site 300. The soil has not been disposed of yet. Disposal methods have not yet been determined. Soil or backfill returned to the tank excavation or piping trench: [ ]Yes [X]No If yes,volume of soil returned to the excavation: N A cubic yards Reason for the return of the soil to the tank excavation or piping trench: N/A. 2