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St. Paul Island: TPA Site 12c Lukanin Bay Petroleum Contaminated Soil
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Excavation in progress at the Lukanin Bay PCS Area.
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The Lukanin Bay petroleum contaminated soil (PCS) area is located on the western side of Diamond Hill Road, approximately 450 feet west of the bay. The site was used for the disposal of metal and wood debris, electrical cabling and controls, general household refuse, 55-gallon drums, government vehicles, heavy equipment, industrial machinery, fire fighting and suppression systems, and steel storage tanks. Soil petroleum contamination evidently resulted from the leaking of debris contents.
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Erosion control matting in place at the Lukanin Bay PCS Area.
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Focusing on five previously identified hot spot locations, excavation activities for the Lukanin Bay PCS Area commenced on July 3, 2004. Two separate areas were excavated during remediation activities. Throughout excavation activities at the Lukanin Bay PCS Area, significant quantities of wood and metal debris were encountered and removed from up to 7 feet below ground surface. Debris included drums and miscellaneous pieces of scrap wood and metal. Confirmation samples collected from the bottom and sidewalls of the excavations at the Lukanin Bay PCS Area indicated all analyte concentrations are below the Alaska Department of Environmental Conservation (ADEC) Method Two cleanup levels.
During the corrective action, an estimated 1,778 cubic yards of PCS were removed from the excavation areas. In addition, and estimated 395 cubic yards of debris were removed from the excavations. On May 5, 2005, ADEC granted NOAA no further action status for the Lukanin Bay PCS Area.
Downloads
Click on the following link to view a copy of the Conditional Closure document. |
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