Public information meeting for Lincoln Park/Cotter Mill superfund site, April 20, 2017

Lincoln Park/Cotter Mill Site via The Denver Post

From The Colorado Springs Gazette (Liz Forster):

Cañon City community members will meet again with Cotter Corp. on Thursday to hear about the former uranium mining company’s pilot groundwater cleanup project.

Cotter hopes the project will reduce uranium and molybdenum contaminates to safe levels, but so far, community members have had mixed feelings about the effectiveness of the program.

Doni Angell, a member of the Lincoln Park Community Advisory Group that hosts the meetings and frequently comments on Cotter projects, said the proposed project, known as the Organic Bioreactor Work Plan, will only create a more concentrated toxic environment…

The project proposes an organic method using wet hardwood mulch to remove contaminates from the groundwater, rather than synthetic chemicals that most uranium mills use. The mulch, Cotter believes, would remove oxygen from water flow areas, causing the uranium to separate from the water. Because the water is migrating down slope through the mulch, Cotter anticipates successful contamination reduction using the natural aquifer as opposed to a mechanically propelled system.

“This is the simpler solution based on our tests, and sometimes the simple solution is the better solution,” Cotter project manager Steve Cohen said, adding that capital costs for this type of project are much lower than synthetic chemical-based ones.

Community Advisory Group member Carol Dunn said she does not know enough about the details of the project to make an assessment.

She said her hope going into Thursday relies on the relationship the community has developed with Cotter – a unique aspect of the Cotter/Lincoln Park site in relation to other Superfund sites where the responsible party is usually no longer present…

The project is in the informal public comment period, which was extended by the Colorado Department of Public Health and Environment from April 21 to May 7 last week after a request from the Community Advisory Group. The EPA and CDPHE – which oversees activities at the site because of its designation as a Superfund site in 1984 – are reviewing the details of the project and will provide comments following the May 7 comment deadline.

At that time, the agencies will also evaluate comments received from other agencies and the public, include the Community Advisory Group…

The original groundwater contamination in the Lincoln Park community was caused by the discharging of the uranium tailings into unlined tailing ponds. The ponds were closed in the early 1980s when the EPA listed the area as a Superfund site, and the waste was excavated and put into new lined ponds. The new ponds cut off most of the groundwater contamination, and, since then, the EPA has since declared the contaminated ground water status as “under control.”

The EPA is currently administering its 5-year review of the site to ensure that the site decision remedies are continuing to protect human health and the surrounding environment. The Community Advisory Group also has contributed to that project, providing the EPA with people to interview in the community about the impacts, or lack thereof, of the remaining contamination.

(The Community Advisory Group meeting will take place on Thursday at 6 p.m. in the Abbots Room at the Abbey Events Complex, 2951 East U.S. Highway 50. The meeting is open to the public.)

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