| Abstract |
The 1.2-acre Arrcom site is an abandoned waste oil recycling facility located 2.5 miles southwest of Rathdrum, Idaho. From 1960 to 1982, Arrcom used the site for oil recycling operations, which included an oil/water separation process, a shaking process to facilitate sedimentation, and a heating process for demulsification. Waste oil and recycled oil were stored in 27 tanks and 4 tank trucks. Sludge and waste oils were discarded in three disposal pits on the property or used for dust suppression on the road. In 1982, the site was abandoned, and investigations by EPA later that year revealed soil and waste oils contaminated with high levels of solvents, lead, and PCBs. Emergency response activities were conducted under EPA's removal program between 1983 and 1990. The ROD addresses the final remedy for the Arrcom site. Previous removal actions have eliminated the need to conduct remedial action at the site. The selected remedial action for the site is no further action, which is based on the post-removal soil and ground water sampling, supplemental remedial soil and ground water sampling, and the risk assessment. Removal actions onsite have reduced concentrations of contaminants in the soil to levels that do not pose a risk to human health and the environment. |
