The Agency for Toxic Substances and Disease Registry (ATSDR) requests comments on its Public Health Assessment for Midnite Mine (PDF) (126 pp. 1.6MB). Comments must be submitted by July 20, 2009.
Please address comments regarding this report to:
Agency for Toxic Substances and Disease Registry
Attn: Records Center
1600 Clifton Road, N.E., MS F-09
Atlanta, Georgia 30333
You may contact ATSDR Toll Free at 1-800-CDC-INFO or visit their website at http://www.atsdr.cdc.gov.
Midnite Mine is an inactive former uranium mine in the Selkirk Mountains of eastern Washington. Located within the reservation of the Spokane Tribe of Indians, the mine was operated from 1955 until 1981.
Two open pits, backfilled pits, and a number of waste rock piles and ore/protore stockpiles remain on site. In addition to elevated levels of radioactivity, heavy metals mobilized in acid mine drainage pose a potential threat to human health and the environment. The site drains to Blue Creek, which enters the Spokane Arm of Franklin D. Roosevelt Lake. Contaminated water emerging below the waste rock and ore piles is currently captured for treatment in an on-site treatment system.
The final cleanup plan (Record of Decision, or ROD) for the site was issued September 29, 2006.
Record of Decision
- Midnite Mine Superfund Site Spokane Indian Reservation Washington Record of Decision (PDF) - September 2006 (248pp., 6.2MB, About PDF)
Record of Decision, Revised Table 7-6 (1pp., 73K, PDF)
The Record of Decision initiates the design phase. Design of the cleanup will include data collection to support detailed construction plans and is expected to take several years.
Please read supporting Technical Documents