Geology and Hydrology of the Project Rulison Exploratory Hole, Garfield County, Colorado. (open access)

Geology and Hydrology of the Project Rulison Exploratory Hole, Garfield County, Colorado.

None
Date: April 4, 1969
Creator: unknown
System: The UNT Digital Library
Mitigation action plan for remedial action at the Uranium Mill Tailing Sites and Disposal Site, Rifle, Colorado (open access)

Mitigation action plan for remedial action at the Uranium Mill Tailing Sites and Disposal Site, Rifle, Colorado

The Estes Gulch disposal site is approximately 10 kilometers (6 miles) north of the town of Rifle, off State Highway 13 on Federal land administered by the Bureau of Land Management. The Department of Energy (DOE) will transport the residual radioactive materials (RRM) by truck to the Estes Gulch disposal site via State Highway 13 and place it in a partially below-grade disposal cell. The RRM will be covered by an earthen radon barrier, frost protection layers, and a rock erosion protection layer. A toe ditch and other features will also be constructed to control erosion at the disposal site. After removal of the RRM and disposal at the Estes Gulch site, the disturbed areas at all three sites will be backfilled with clean soils, contoured to facilitate surface drainage, and revegetated. Wetlands areas destroyed at the former Rifle processing sites will be compensated for by the incorporation of now wetlands into the revegetation plan at the New Rifle site. The UMTRA Project Office, supported by the Remedial Action Contractor (RAC) and the Technical Assistance Contractor (TAC), oversees the implementation of the MAP. The RAC executes mitigation measures in the field. The TAC provides monitoring of the mitigation actions in …
Date: July 1992
Creator: unknown
System: The UNT Digital Library
Records of Selected Wells and Springs in the Rulison Project Area, Garfield and Mesa Counties, Colorado. (open access)

Records of Selected Wells and Springs in the Rulison Project Area, Garfield and Mesa Counties, Colorado.

None
Date: September 1969
Creator: Hurr, R. T.; Wilson, W. W.; Welder, F. A. & Emerson, R.L.
System: The UNT Digital Library
Refraction Surveys in Rifle, Colorado (open access)

Refraction Surveys in Rifle, Colorado

None
Date: June 1972
Creator: Navarro, Richard; Bayer, Kenneth C. & King, Kenneth W.
System: The UNT Digital Library
Waste minimization opportunities at the U.S. Uranium Mill Tailings Remedial Action (UMTRA) Project, Rifle, Colorado, site (open access)

Waste minimization opportunities at the U.S. Uranium Mill Tailings Remedial Action (UMTRA) Project, Rifle, Colorado, site

At two uranium mill sites in Rifle, Colorado, the US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project is removing uranium mill tailings and contaminated subgrade soils. This remediation activity will result in the production of groundwater contaminated with uranium, heavy metals, ammonia, sulfates, and total dissolved solids (TDS). The initial remediation plan called for a wastewater treatment plant for removal of the uranium, heavy metals, and ammonia, with disposal of the treated water, which still includes the sulfates and TDSS, to the Colorado River. The National Pollutant Discharge Elimination (NPDES) permit issued by the Colorado Department of Health for the two Rifle sites contained more restrictive discharge limits than originally anticipated. During the detailed review of alternate treatment systems to meet these more restrictive limits, the proposed construction procedures were reviewed emphasizing the methods to minimize groundwater production to reduce the size of the water treatment facility, or to eliminate it entirely. It was determined that with changes to the excavation procedures and use of the contaminated groundwater for use in dust suppression at the disposal site, discharge to the river could be eliminated completely.
Date: December 31, 1993
Creator: Hartmann, George L.; Arp, Sharon & Hempill, Hugh
System: The UNT Digital Library
Geohydrology: Project Rulison, Garfield County, Colorado. Rulison-5. (open access)

Geohydrology: Project Rulison, Garfield County, Colorado. Rulison-5.

None
Date: March 1970
Creator: Voegeli, P. T., Sr. & West, S. W.
System: The UNT Digital Library