skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Environmental assessment of remedial action at the Gunnison Uranium Mill Tailings Site, Gunnison, Colorado. [UMTRA Project]

Technical Report ·
DOI:https://doi.org/10.2172/6196795· OSTI ID:6196795
; ;  [1]; ; ; ; ; ; ; ; ; ; ;  [2];  [3]
  1. Jacobs Engineering Group, Inc., Pasadena, CA (USA)
  2. Weston (Roy F.), Inc., Washington, DC (USA)
  3. Sergent, Hauskins and Beckwith (USA)

This document assesses and compares the environmental impacts of various alternatives for remedial action at the Gunnison uranium of mill tailings site located 0.5 miles south of Gunnison, Colorado. The site covers 56 acres and contains 35 acres of tailings, 2 of the original mill buildings and a water tower. The Uranium Mill Tailings Radiation Control of Act of 1978 (UMTRCA), Public Law 95-604, authorizes the US Department of Energy to clean up the site to reduce the potential health impacts associated with the residual radioactive materials remaining at the site and at associated (vicinity) properties off the site. The US Environmental Protection Agency promulgated standards for the remedial actions (40 CFR 192). Remedial actions must be performed in accordance with these standards and with the occurrence of the Nuclear Regulatory Commission. Four alternatives have been addressed in this document. The first alternative is to consolidate the tailings and associated contaminated soils into a recontoured pile on the southern portion of the existing site. A radon barrier of silty clay would be constructed over the pile and various erosion control measures would be taken to assure the long-term integrity of the pile. Two other alternatives which involve moving the tailings to new locations are assessed in this document. These alternatives generally involve greater short-term impacts and are more costly but would result in the tailings being stabilized in a location farther from the city of Gunnison. The no action alternative is also assessed.

Research Organization:
Jacobs Engineering Group, Inc., Pasadena, CA (USA); Weston (Roy F.), Inc., Washington, DC (USA); Sergent, Hauskins and Beckwith (USA)
Sponsoring Organization:
DOE/NE
OSTI ID:
6196795
Report Number(s):
DOE/UMTRA-91005826; ON: DE91005826; TRN: 91-002741
Country of Publication:
United States
Language:
English