Problems/Comments

The facility was constructed in 1967, with a five bay floor drain shop. The waste water was plumbed through a two compartment oil/water separator prior to connecting with the facility's septic tank soil absorption system comprised of a septic tank that discharged to a log crib seepage pit, classified by EPA as a Class V Injection well. In 2009 this system failed and was taken out of service. In the interim the septic tank was used as a holding tank and routinely pumped by a local septage hauler. In 2010 a new septic tank soil absorption system was constructed. After completing the new system on August 23 and 24 of 2010 the Class V Injection Well (seepage pit and associated structures) was excavated and removed. Petroleum contamination was observed during the removal of the structure, both from the solid material within the seepage pit and in the soil surrounding the seepage pit. Approximately 120 cubic yards of contaminated soil was removed and was stockpiled at the site. The total depth of the excavation was at 17.5 feet below ground surface, with confirmation soil samples taken from the excavation confirmed that the petroleum contamination had been removed. Arsenic was detected within the limits of the excavation at concentrations of 3.32 to 5.44 mg/kg. The confirmation stockpiled soils samples detected DRO at 254 to 624 mg/kg and Arsenic at 4.04 to 4.83 mg/kg.

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Contaminant Information

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Requirements