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CLOSURE REPORT FOR UNDERGROUND STORAGE TANK 834-DlUl <br /> ENVIRONMENTAL SAMPLE INFORMATION: <br /> SOIL <br /> Soil sample collection and handling procedures were in accordance with LLNL Tank <br /> Assessments and Guidance Group Procedure 203,Soil Sampling. <br /> Soil samples were collected by: Marion Heaton, LLNL Date: 7/27/94 <br /> Sample analyses requested: <br /> From within the excavation (TPH Diesel and BTXE)• and from the excavated soil and fill <br /> (TPH Diesel: EPA Method 8010/8020 (HVOC/AVON) Metals by STLC and TTLC• ,gross <br /> alpha &beta tritium; and Corrosivity, Reactivity,and Ignitability (CRI)) Samples collected <br /> for disposal options included 1 discrete sample collected for each 25 yards <br /> TPH-D:Total Petroleum Hydrocarbo c aa Di=16 BT • &=mr.Toren xylenes and Ethyl = • <br /> HVOC: EPA Method 8010 for Halogenatedyolatffe Organic Carb • AV PA Me hod 8020 for Ammatic YD1VILQrgank <br /> Carbone STLC• SnlnbleThresholdLimit Concentma n• =Total Ib=hold Limit Concentratiom <br /> Name and address of analytical laboratory: California Laboratory Services, 3249 Fitzgerald <br /> Road Rancho Cordova CA 95742 Radiological analyses were performed by LLNL <br /> Environmental-Analytical Sciences Lab. <br /> Describe how the tank excavation was secured after soil sample collection: The excavation was <br /> secured by means of barricades and yellow caution construction tape The excavation was <br /> then filled with imported clean compacted soil Three vadose monitoring wells were <br /> installed in the compacted soil. <br /> WATER <br /> IX ] Not applicable. (No water in the tank excavation or piping trench) <br /> Static water level below grade: 17 ft. <br /> Describe any sheen,free product or odor present in the water: None present. <br /> Water pumped out of the excavation: [ ] Yes [X] No <br /> Volume of water removed from the tank excavation: N A gallons <br /> Water sampled: [ ] Yes [X] No <br /> Water sample was collected by: N/A. Date:N/A <br /> Sample analyses requested: P4ZA. <br /> Name and address of analytical laboratory: N/A. <br /> Describe how the water was sampled: N/A. <br /> Identify the source of the water(if known): N/A. <br /> Describe where and how the removed water was stored on site, and type of containment used: <br /> N/A. <br /> Water Disposal Information: <br /> [X] Not Applicable. (Water not encountered,or not disposed of as hazardous waste) <br /> The water was transported by: N/A. <br /> The water was disposed of as: N/A. Date: N/A <br /> Name and address of disposal facility: N/A. <br /> [N/A] LLNL Hazardous Waste Requisition and Uniform Hazardous Waste Manifest "TSD <br /> Facility to Generator"copy for the water enclosed. <br /> 3 <br />