Superfund Site Profile

The Lincoln Park site is located south of Cañon City in Fremont County, Colorado. The site includes the Cotter Corporation’s (Cotter) 2,600-acre uranium mill and areas of mill-associated contamination, including the Lincoln Park community near the mill. Cotter started producing yellowcake at the Cañon City mill in August 1958. Yellowcake is the solid form of mixed uranium oxide, which is produced from uranium ore in the uranium milling process. In addition to producing yellowcake, the mill produced vanadium and molybdenum as byproducts. Historical mill operations and disposal practices released radioactive and metal contamination into the environment. The mill was originally licensed by the Atomic Energy Commission, but the authority for licensing was transferred to the Colorado Department of Public Health and Environment (CDPHE) in 1968 when Colorado became an Agreement State. Investigation and cleanup activities at the site are ongoing under a 2014 agreement to conduct a Remedial Investigation/Feasibility Study (RI/FS).


EPA, in cooperation with the Colorado Department of Public Health and Environment (CDPHE), is conducting the third five-year review for Operable Unit 2 (residential soils). The purpose of the review is to make sure that the cleanup actions completed to date are adequately protecting human health and the environment.

We want to hear from you! Community members are encouraged to share information that may help us make determinations regarding the protectiveness and effectiveness of the remedies at the site. Please make an appointment during one of our drop-in sessions or by contacting V. Jasmin Guerra. Walk-ins will also be accommodated during these times.

Join us to participate in an interview session on Wednesday, March 15, 2017, at:

Cañon City Public Library (10 a.m. to 4 p.m.)
516 Macon Avenue
Cañon City, CO 81212

The Abbey Events Complex (6 p.m. to 8 p.m.)
2951 East U.S. Highway 50, Abbots Room
Cañon City, CO 81212

Alternatively, share input with us by mail or email:

V. Jasmin Guerra (guerra.valeria@epa.gov)
EPA Community Involvement Coordinator
Phone: (303) 312-6622
Mailing Address: U.S. EPA Region 8 (8OC)
1595 Wynkoop Street, Denver, CO 80202-1129

Warren Smith (warren.smith@state.co.us)
CDPHE Community Involvement Manager
Phone: (303) 692-3373


Human Exposure

Under Control
Contaminated Ground
Water Status
Under Control
Site-Wide Ready for
Anticipated Use?