| Main Title |
Superfund record of decision : Central City-Clear Creek, CO. |
| CORP Author |
United States. Environmental Protection Agency. |
| Publisher |
U.S. Environmental Protection Agency, Office of Emergency and Remedial Response ; Reproduced by National Technical Information Service, |
| Year Published |
1991 |
| Report Number |
EPA/ROD-R08-91-055 |
| Stock Number |
PB92-964406 |
| OCLC Number |
32543775 |
| Subjects |
Hazardous waste sites--Colorado
|
| Additional Subjects |
Superfund ;
Hazardous materials ;
Waste disposal ;
Remedial action ;
Pollution control ;
Colorado ;
Ground water ;
Acid mine drainage ;
Mining ;
Metals ;
Mine wastes ;
Tailings ;
Water pollution ;
Record of Decision ;
Gilpin County(Colorado) ;
Clear Creek County(Colorado) ;
EPA region 8 ;
Cleanup operations
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA ROD-R08-91-055 |
|
Headquarters Library/Washington,DC |
11/13/2009 |
| NTIS |
PB92-964406 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 volume (various pagings) : illustrations ; 28 cm |
| Abstract |
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. |
| Notes |
Cover title. "9/30/91." "EPA/ROD-R08-91-055." "September 1991." |
| Place Published |
Washington, D.C. Springfield, VA |
| Availability Notes |
Available on Standing Order, deposit account required for all RODS is $700 for U.S., Canada, and Mexico; all others $1,400. Deposit required for each region, $200, U.S., Canada, and Mexico; for all others $400. Also available individually in paper copy or microfiche. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Emergency and Remedial Response. |
| PUB Date Free Form |
1991 |
| NTIS Prices |
PC A06/MF A02 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20091021144821 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01080cam 2200277Ka 45020 |
