Superfund Information Systems: Site Profile

Superfund Site:

SILVER BOW CREEK/BUTTE AREA
BUTTE, MT

Operable Units

Below, EPA has provided a list of the remedial actions selected pertaining to each operable unit.

EPA issues Records of Decision (RODs) to explain which cleanup methods will be used at Superfund National Priorities List sites. EPA has two primary documents that it may use to identify changes to the remedies selected in RODs. EPA uses a ROD Amendment when it needs to make a fundamental change to the remedy. EPA publishes an Explanation of Significant Differences (ESD) for significant changes.

During cleanup, complex sites may be divided into several distinct areas to make the response more efficient. These areas, called operable units (OUs), may address geographic areas, specific problems, or medium (e.g., groundwater, soil) where a specific action is required.

EPA is working to improve data quality. The information presented on this page is undergoing review for accuracy and completeness, and may be subject to change.

OU ID Name Decision Document Cleanup Technologies Selected
in the Decision Document
00 SITEWIDE No decision document
01 STREAMSIDE TLNGS (SBC) Record of Decision
November 29, 1995
Data not available
01 STREAMSIDE TLNGS (SBC) Explanation of Significant Differences
August 31, 1998
Cover (soil)
Drainage/Erosion Control (other, NOS)
ESD - Nonfundamental Change (other)
Stream Realignment
02 AREA I No decision document
03 BERKELEY PT/MINE FLDNG (BUTTE) Record of Decision
September 29, 1994
Chemical Oxidation (P&T, exsitu)
Institutional Controls
Membrane Filtration (reverse osmosis, P&T, exsitu)
Monitoring
Precipitation (P&T, exsitu)
Treatment (other, NOS, exsitu, onsite)
04 WARM SPRINGS PONDS (SBC) Record of Decision
September 28, 1990
Cap (engineered cap)
Consolidate (onsite)
Containment (other, NOS, onsite)
Discharge (other, NOS)
Discharge (surface water/NPDES discharge)
Drainage/Erosion Control (dike/berm/levee)
Excavation
Extraction (recovery/vertical well)
Hydraulic Control (containment)
Institutional Controls
Precipitation (P&T, exsitu)
04 WARM SPRINGS PONDS (SBC) Explanation of Significant Differences
June 24, 1991
Institutional Controls
05 REDUCTION WORK TAILINGS (SBC) No decision document
06 TRAVONA MINE (BUTTE) No decision document
07 ROCKER (SBC) Record of Decision
December 22, 1995
Chemical Oxidation/Reduction (P&T, exsitu)
Excavation
Institutional Controls
Monitored Natural Attenuation
Monitoring
Revegetation
Solidification/Stabilization (exsitu, onsite)
Solidification/Stabilization (insitu)
Water Supply (temporary replacement, other, NOS)
07 ROCKER (SBC) Explanation of Significant Differences
September 29, 2014
ESD/Amd - Cleanup/Performance Standard Change
08 SOILS (BUTTE) Record of Decision
September 21, 2006
Cap (engineered cap)
Cap (exsitu)
Discharge (surface water/NPDES discharge)
Excavation
Extraction (recovery/vertical well)
Institutional Controls
Monitoring
Operations & Maintenance (O&M)
Precipitation (P&T, exsitu)
Treatment (other, NOS, onsite)
08 SOILS (BUTTE) Explanation of Significant Differences
July 18, 2011
ESD - Nonfundamental Change (other)
09 CLARK FORK/DOWN STREAM No decision document
10 BUTTE RESIDENTIAL SOILS No decision document
11 LOWER AREA ONE No decision document
12 WSP/INACTIVE AREA Record of Decision
June 30, 1992
Cap (exsitu)
Consolidate (onsite)
Containment (other, NOS, onsite)
Engineering Control (other, NOS)
Excavation
Institutional Controls
Other (NOS)
Solidification/Stabilization (exsitu, onsite)
Treatment (other, NOS, exsitu, onsite)
13 WEST SIDE SOILS No decision document

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