Groundwater Remediation at a Superfund Site

by Henry Y. He, Roy F Weston, Inc, Edison, United States,
Jing-Yea Yang, Roy F Weston, Inc, Edison, United States,
Gregory Powell, Roy F Weston, Inc, Edison, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Soil and groundwater contamination at the Montana Post & Pole site in Butte, Montana, one of the nation's oldest Superfund sites, has developed into one of the most significant environmental issues. Product thickness was observed more than 5 feet in one groundwater monitoring well near the apparent source. the extent of the contaminant plume is about 1,350 feet long and 130 feet wide near the source area. A previously installed passive oil recovery system, comprised of recovery trenches and infiltration galleries, was installed as a temporary remedial measure in 1985. The newly installed product recovery system has recovered approximately 35 gallons of free-phase product daily since January 1993 and has surpassed the approximate 11,000 gallons recovered in seven years by the previous passive system.

Subject Headings: Soil pollution | Groundwater pollution | Water pollution | Waste sites | Groundwater management | Infiltration | Trenches | Montana | United States

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