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Author
Publisher
United States Environmental Protection Agency Region VIII
Pub. Date
[2010]
Physical Desc
1 online resource (vi, 24, [13] p.) : ill., maps.
Language
English
Description
This Proposed Plan identifies the preferred alternative for OU4 water treatment. The mining-impacted waters of Gregory Gulch, Gregory Incline and National Tunnel are acidic and contain high concentrations of heavy metals. This proposed amendment calls for construction of a new water treatment plant designed and operated specifically to treat discharges from the National Tunnel and Gregory Incline, as well as base surface water flow and alluvial ground...
Author
Publisher
United States Environmental Protection Agency Region VIII
Pub. Date
[2006]
Physical Desc
1 online resource (v, 17, [2] p.) : ill., maps.
Language
English
Description
The selected amended remedy for OUs 3 and 4 adds an additional remedial action component, an on-site repository, to the previously selected remedial actions.
Author
Publisher
United States Environmental Protection Agency Region 8
Pub. Date
[2004]
Physical Desc
1 online resource (x, 60, [A-12, B-14, C-9, D-3] p.) : ill., maps.
Language
English
Description
The selected remedy for OU4 addresses contaminated surface water, ground water, and sediment from mine waste piles within the Study Area. The cleanup strategies will address threats through the capping or removal of waste piles and treatment of point and non-point sources of surface water contamination.
Author
Publisher
United States Environmental Protection Agency Region VIII
Pub. Date
[2009]
Physical Desc
1 online resource (11p.) : ill., maps.
Language
English
Description
This Proposed Plan identifies the preferred alternative for OU4 water treatment. The mining-impacted waters of Gregory Gulch, Gregory Incline and National Tunnel are acidic and contain high concentrations of heavy metals. This proposed amendment calls for construction of a new water treatment plant designed and operated specifically to treat discharges from the National Tunnel and Gregory Incline, as well as base surface water flow and alluvial ground...
Publisher
Environmental Strategies Corporation
Pub. Date
2001
Physical Desc
1 v. (loose-leaf) : tables, diagrs. ; 29 cm.
Language
English
Description
Laboratory reports and procedures relating to investigation of compliance by Rocky Mountain Steel Mills with requirements of the Resource Conservation and Recovery Act.
Author
Publisher
Colorado Dept. of Public Health and Environment, Hazardous Materials and Waste Management Division
Pub. Date
[2009]
Physical Desc
1 online resource (22 p.) : ill., map.
Language
English
Description
This Community Involvement Plan revision for the Central City/Clear Creek Superfund Site is intended to reflect the changes, both actual and as perceived by the community, since the original 1989 plan was last revised in September 2004. This revision of the 2004 revision of the Community Involvement Plan, based on community interviews, describes the community involvement and public participation program developed for the Central City/Clear Creek Superfund...
Series
Open file report volume 81-1
Publisher
[Colorado Geological Survey]
Pub. Date
1981
Physical Desc
1 online resource (various pagings) : ill., maps.
Language
English
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