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RECORD NUMBER: 19 OF 20

Main Title Water-Quality Trends and Constituent-Transport Analysis for Selected Sampling Sites in the Milltown Reservoir/Clark Fork River Superfund Site in the Upper Clark Fork Basin, Montana, Water Years 1996©¢â‚¬â€œ2015.
Author Sando, S. K. ; Vecchia, A. V.
CORP Author Geological Survey, Reston, VA.; Environmental Protection Agency, Washington, DC.
Year Published 2016
Report Number USGS-SIR-2016-5100
Stock Number PB2016-104367
Additional Subjects Water quality ; Sampling sites ; Trends ; Mining wastes ; Solid waste ; Metallic contaminants ; Trace elements ; Water pollution ; Remediation efforts ; Data collection ; Streamflow data ; Milltown Reservoir (Montana) ; Clark Fork River Superfund Site (Montana) ; Upper Clark Fork Basin (Montana)
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB2016-104367 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 94p
Abstract
During the extended history of mining in the upper Clark Fork Basin in Montana, large amounts of waste materials enriched with metallic contaminants (cadmium, copper, lead, and zinc) and the metalloid trace element arsenic were generated from mining operations near Butte and milling and smelting operations near Anaconda. Extensive deposition of mining wastes in the Silver Bow Creek and Clark Fork channels and flood plains had substantial effects on water quality. Federal Superfund remediation activities in the upper Clark Fork Basin began in 1983 and have included substantial remediation near Butte and removal of the former Milltown Dam near Missoula. To aid in evaluating the effects of remediation activities on water quality, the U.S. Geological Survey began collecting streamflow and water-quality data in the upper Clark Fork Basin in the 1980s.