cotter corporation

from “unicom history” at:

“In the interest of assuring a uranium supply, ComEd acquired Cotter Corporation, a uranium mining and milling company in 1974.”

lawsuit against cotter

on cotter canon city/lincoln park epa superfund site:

on westlake landfill epa NPL site:

short film on the superfund site:


Cotter Corporation (Exelon and Generation)

The EPA has advised Cotter Corporation (Cotter), a former ComEd subsidiary, that it is potentially liable in connection with radiological contamination at a site known as the West Lake Landfill in Missouri. On February 18, 2000, ComEd sold Cotter to an unaffiliated third party. As part of the sale, ComEd agreed to indemnify Cotter for any liability incurred by Cotter as a result of any liability arising in connection with the West Lake Landfill. In connection with Exelon’s 2001 corporate restructuring, this responsibility to indemnify Cotter was transferred to Generation. Cotter is alleged to have disposed of approximately 39,000 tons of soils mixed with 8,700 tons of leached barium sulfate at the site. Cotter, along with three other companies identified by the EPA as PRPs, has submitted a draft feasibility study addressing options for remediation of the site. The PRPs are also engaged in discussions with the State of Missouri and the EPA. The current estimated cost of the anticipated remediation for the site is $24 million, which will be allocated among all PRPs. It is expected that the PRPs will agree on an allocation of responsibility for the costs once a remedy is selected. Generation has accrued what it believes to be an adequate amount within this estimated cost range to cover its anticipated share of the liability.

on cotter from:

Company Profile
Cotter Corporation is a General Atomics (GA) affiliate headquartered in Denver, Colorado. Originally incorporated in 1956 in New Mexico as a uranium production company, Cotter was purchased by and became a wholly owned subsidiary of Commonwealth Edison in 1975. GA acquired Cotter in early 2000. Through its various mining and milling operations, Cotter has produced uranium, vanadium, molybdenum, silver, lead, zinc, copper, selenium, nickel, cobalt, tungsten and limestone.

Operations Cañon City Mill – The mill, located near Cañon City, Colorado, has a nominal capacity of 1,200 tons per day. The mill has the capability and is licensed to process a wide range of uranium-bearing feed material, as well as performing specialized milling campaigns. The Cañon City mill can be operated using an alkaline leach uranium circuit or an acid leach circuit depending on ore chemistry.

Uravan Mineral Belt Uranium/Vanadium Operations – Cotter has acquired numerous uranium/vanadium properties in the Uravan Mineral Belt of western Colorado, and currently owns or controls 15 uranium/vanadium mines in southwest Colorado. Combined recoverable reserves for the properties are approximately 20 million pounds U3O8 (7,700 mtU) and 100 million pounds (45,400 tonnes) V2O5. Uranium/vanadium ores occur in channel sandstones mineable primarily by underground methods. Presently, all the western Colorado operations are on standby status.

Schwartzwalder Mine, Colorado ­ Cotter acquired the Schwartzwalder mine in 1965. The property was developed as a multi-level, hard rock underground mine. Uranium mineralization occurs in steeply-dipping veins within Precambrian gneisses and schists. Total production from the Schwartzwalder has been approximately 17 million pounds U3O8 (6,500 mtU), with additional resources of 16 million pounds U3O8 (6,150 mtU) identified. Based on long-term forecasts for a weak uranium market, the decision has been made to place the mine on temporary standby and begin reclamation of the property.

Wyoming Uranium Properties – Cotter¹s uranium holdings in Wyoming are the undeveloped Charlie and Taylor Ranch deposits. Both properties are located in the Southern Powder River Basin in northeast Wyoming. The Charlie deposit, owned 100% by Cotter, contains 4.2 million pounds U3O8 (1,610 mtU). Cotter Corporation owns a 50% interest in the Taylor Ranch deposit through a joint venture with Cameco Corporation. Cotter¹s share of the Taylor Ranch uranium reserves is 5.0 million pounds U3O8 (1,900 mtU).


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