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Doc Date:1211112001 <br />• Environmental Planners, Scientists and Engineers 11 <br />~~ <br />October 20, 1997 ~ J/ <br />/ ~_rr-n~-,~ irl-, <br />Mr. Jon Kubic <br />Water Quality Control Division - PE-B2 (lr" 1 '' 1gy) <br />Colorado Department of Public Health and Environment <br />4300 Cherry Creek Drive South `-~°~`•~ ... <br />Denver, CO 80222-1530 - ~ `~"'`~ny <br />RE: Request for Revision to Permit 00.0000906, New Elk Miue <br />Dear Mr. Kubic, <br />Picketvvire Processing, LLC's requests an approval to the above referenced permit to apply <br />flocculent to the sedimentation ponds at the site as required to meet the effluent limitations provided <br />in the permit. The Material Safety Data Sheet (MSDS) for the proposed flocculent is attached. This <br />is the same flocculent that was approved for use at Basin Resources' Golden Eagle Mine located <br />five miles east of New Elk. The New Elk Mine has needs to apply this chemical to assist in <br />• operations related to pond cleaning and intermittent discharges of store water so that the ponds will <br />contain or pass the 10-year, 24-hotu storm event. The flocculent will be applied to the pond surface <br />by a controlled spray technique and water will only be discharged following sampling to assure that <br />effluent limitations are met. <br />We would appreciate your attention to this request as Picketvvire is planning some pond cleaning <br />maintenance during this falls dry weather conditions. <br />Should you have questions or need additional information concerning these materials, please do not <br />hesitate to ]et me know. <br />Sincerely, <br />J' erry H: K~itz~~ <br />Principal <br />Attachments <br />cc Mr, Jim Cooper - Picketwire <br />• <br />5990 Greenwood Plaza Blvd. • Suite 250 • Englewood, Colorado 8011 l <br />Phone (303) 850.0930 Fax (303) 721-9298 <br />