Superfund Record of Decision (EPA Region 8): Central City-Clear Creek site, (Operable Unit 3), Clear Creek and Gilpin Counties, CO. (Third remedial action), September 1991
Technical Report
·
OSTI ID:7085965
The Central City-Clear Creek site is an active mining facility in Central City, Clear Creek and Gilpin counties, Colorado. The site lies within the 400-square mile drainage basin of Clear Creek, which serves as a drinking water source for several municipalities. Presently, six major mine drainage tunnels are thought to be principal discharge sources of acid mine water containing high concentrations of metals to surface waters including Clear Creek and its tributaries. In addition, over 21 mine tailings piles with an estimated total volume of over 2,000,000 cubic yards at numerous locations throughout the site are thought to be major sources of contamination. In response to site contamination, EPA has conducted three removal actions since 1987. The ROD supersedes the remedy provided for OU1 in the 1987 ROD by including active treatment of the Argo Tunnel and delaying a decision on treating the discharge from the Big Five, National and Quartz Hill tunnels, and the Gregory Incline. The primary contaminants of concern affecting the ground water are metals including arsenic, cadmium, chromium, and lead. The selected remedial action for the site is included.
- Research Organization:
- Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
- OSTI ID:
- 7085965
- Report Number(s):
- PB-92-964406/XAB; EPA/ROD/R--08-91/055
- Country of Publication:
- United States
- Language:
- English
Similar Records
Health assessment for Clear Creek/Central City, Clear Creek and Gilpin Counties, Colorado, Region 8. CERCLIS No. COD980717557. Final report
Superfund Record of Decision (EPA Region 8): Central City/Clear Creek, Colorado (first remedial action), September 1987. Final report
Metals removal from an acid mine drainage: The Argo Tunnel experience
Technical Report
·
Mon Jul 11 00:00:00 EDT 1988
·
OSTI ID:5123204
Superfund Record of Decision (EPA Region 8): Central City/Clear Creek, Colorado (first remedial action), September 1987. Final report
Technical Report
·
Wed Sep 30 00:00:00 EDT 1987
·
OSTI ID:6903237
Metals removal from an acid mine drainage: The Argo Tunnel experience
Conference
·
Mon Dec 30 23:00:00 EST 1996
·
OSTI ID:416870
Related Subjects
54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
540350 -- Environment
Aquatic-- Site Resource & Use Studies-- (1990-)
ACID MINE DRAINAGE
ARSENIC
CADMIUM
CHROMIUM
COLORADO
CONTAMINATION
DEVELOPED COUNTRIES
DRINKING WATER
ELEMENTS
FEDERAL REGION VIII
GROUND WATER
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
LAWS
LEAD
MANAGEMENT
MATERIALS
METALS
MINING
MONITORING
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
POLLUTION LAWS
REMEDIAL ACTION
SEMIMETALS
SITE SURVEYS
SOLID WASTES
SURFACE WATERS
TAILINGS
TRANSITION ELEMENTS
US SUPERFUND
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
WATER POLLUTION
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
540350 -- Environment
Aquatic-- Site Resource & Use Studies-- (1990-)
ACID MINE DRAINAGE
ARSENIC
CADMIUM
CHROMIUM
COLORADO
CONTAMINATION
DEVELOPED COUNTRIES
DRINKING WATER
ELEMENTS
FEDERAL REGION VIII
GROUND WATER
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
LAWS
LEAD
MANAGEMENT
MATERIALS
METALS
MINING
MONITORING
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
POLLUTION LAWS
REMEDIAL ACTION
SEMIMETALS
SITE SURVEYS
SOLID WASTES
SURFACE WATERS
TAILINGS
TRANSITION ELEMENTS
US SUPERFUND
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
WATER POLLUTION