Laserfiche WebLink
~~~ ~~~~~~~~~~~~~~~~ ayd~v <br />y~ TWENTYMILE COAL COMPANY <br />S>i~ SUBSIDIARY OF CYPRUS MINERALS COMPANY <br />P.O. Box 897 • 29515 Routt County Road 27 • Oak Creek, Colorado 80467 <br />Telephone: (303) 879-8050 <br />September 22, 1986 <br />~, <br /> <br />Catherine Begej <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br />Dear Ms. Begej: <br />SEP 2 ~ 1886 <br />RE: Material Damage Standard for Irrigation Water; Permit C-82-056 <br />Twentymile Coal Company is submitting the enclosed text which serves to <br />establish a site specific material damage standard for electrical <br />conductivity of irrigation waters. This text is revised from the August <br />submittal to reflect discussions with Dan Mathews and to include production <br />data. TCC is submitting this information to demonstrate that the proposed <br />2000 umhos/cm irrigation water standard is applicable to the operations of <br />the Foidel Creek Mine. <br />At this time, TCC requests that the CMLRD review this submittal. The <br />formal exhibit which is to be incorporated into the permit will be forwarded <br />to your office at a later date. <br />Please call if you have any questions or additional concerns. Thank you <br />for your time and efforts with this review. <br />Sincerely, <br /> <br />Claire Semmer <br />Environmentbl Specialist <br />CES/de <br />Enclosures <br />`-~,~~r <br />c~rpRUs <br />