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Title: Dredging in an active artillery impact area, Eagle River Flats, Alaska
Authors: United States. Army. Corps of Engineers. Alaska District.
U.S. Army Environmental Center.
Walsh, Michael R.
Chamberlain, Edwin J.
Henry, Karen S.
Garfield, Donald E.
Sorenson, Ed.
Keywords: Dredging
Natural remediation
White phosphorus
Eagle River Flats
Eagle River Flats, Alaska
Fort Richardson, Alaska
Remote control
Spoils retention basin
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 96-22.
Description: Special Report
Abstract: Remediation of sediments in permanently ponded areas at Eagle River Flats, a salt marsh contaminated with white phosphorus (WP), may require dredging. Because the Flats were used as a firing range impact area for over 40 years by the U.S. military, there is much unexploded ordnance, which will require that any dredging equipment be remotely controlled. To treat the sediment pumped from dredged areas, a spoils retention basin was designed, constructed, and tested. This basin contains several innovations, including a natural peaty-silt liner and a geofabric barrier to inhibit reintroduction of WP into the environment, and is designed for the natural remediation of the WP. The dredging system was deployed in October of 1994, with sampling indicating that WP-contaminated areas were removed from the dredged area. An early snowfall curtailed operations shortly after initiation.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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