From The Leadville Herald (Danny Ramey):
The Resurrection Mining Company has filed for approval of an augmentation plan that would allow it to use water shares to replace water depleted from the Yak Tunnel and water treatment plant. Under the plan, the company would use shares it owns in Twin Lakes Reservoir to replace water depleted by its operations in California Gulch. Resurrection filed an application for approval of the augmentation plan with Division 2 of the Colorado Water Court on May 20.
Resurrection currently owns 22 shares of water in Twin Lakes. Twelve of those shares are included on a provisional basis, meaning Resurrection can remove those shares from the plan or use it for purposes other than what it was originally approved for.
In its plan, Resurrection estimates that depletions from its plant range from 3 to 7.7 acre feet of depletions a year. The plan seeks to augment five structures owned by Resurrection. Of those structures, only two cause water depletion, according to the plan. Water depletes from the Yak Surge Pond and the Yak Treatment Plant via evaporation, and some also leaves the treatment plant through the disposal of residuals used in water treatment. The water shares from Twin Lakes would be delivered to the intersection of Lake Creek and the Arkansas River under the plan.
ASARCO and Resurrection have been using water from Twin Lakes to replace depletion from their operations at the Yak since 1989. However, they have been doing so under substitute water supply plans, which expired June 14, 2014. Resurrection’s application would provide for a permanent water replacement plan. The application also asks the division to renew the substitute water supply plan.
Resurrection and ASARCO entered into a joint agreement to develop mine sites in the Leadville area in 1965. The Yak Treatment Tunnel was originally under title to ASARCO. However, when ASARCO went bankrupt, Resurrection assumed the title.
More Arkansas River Basin coverage here.