Evaluation of PCP/Oil Spill on CFT Indian Reservation Near Nespelem, Washington

by Kenneth A. Mangelson, Rocky Mountain Consultants Inc, Englewood, CO, USA,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution


This paper presents the immediate action taken, the field work performed, and the engineering analysis performed in response to a spillage of a solution of pentachlorophenol (PCP) and wood preservative oil which occurred on November 15-16, 1980. The spillage took place at the pole treating facility at the Post and Pole Plant operated by the Colville Forest Enterprises (CFE), near Nespelem, Washington. Presented herein is the immediate action taken to minimize the quantity of PCP/oil solution infiltrating into the ground, the field work performed consisting of well drilling to establish a groundwater monitoring system, the laboratory work done to determine the extent of infiltration of the PCP/oil spill, and final disposal of the PCP/oil contaminated wastes taken from the area of the spill.

Subject Headings: Soil pollution | Groundwater pollution | Hazardous materials | Soil water | Wood preservatives | PCP | Groundwater quality | Hazardous materials spills | Washington | United States

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