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. 999 <br /> © CLIMAX MOLYBDENUM COMPANY COLORADO OPERATIONS <br /> Climax Mine <br /> A Division of Cyprus Climax Metals Co <br /> Hwy.91 <br /> Climax,Colorado 80249 <br /> M ' �� I <br /> n2 (719)486-215• 17 L �// �f'y 4 fix(719)486-2251 <br /> October 1, 1996 <br /> �CT 0 3 1996 <br /> Certified Mail No. P 291 415 918 Dlv►;1 f' <br /> `41NERALS t:s :' (_.�:�Ga'� <br /> Mr. Allen Sorenson <br /> Environmental Protection Specialist <br /> Division of Minerals and Geology <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> Dear Mr. Sorenson: <br /> The Storke Wastewater Pump Station (SWWPS) is an Environmental Protection Facility <br /> at the Climax Mine. As you know, Climax manages this facility for the delivery of water <br /> from the Storke facilities to the Climax water treatment system. You are also aware that <br /> the grated `mousecatcher' within the concrete delivery flume requires extensive <br /> maintenance during peak snowmelt conditions. <br /> Climax has recently developed a design to reduce risk of flume overtopping during <br /> snowmelt. Pursuant to Rule 7.3.1 of the Mineral Rules and Regulations, the attached <br /> design for modification of the SWWPS is presented for your review and acceptance. <br /> The design considers management of debris that is conveyed in the flume during peak <br /> flow and caught at the grated `mousecatcher'. Current delivery of water into the ponds <br /> occurs near the pump inlet area of the pond storage system. The modification consists <br /> of a conveyance to the back of the storage ponds, allowing settling of suspended debris <br /> away from the pump inlet manifold. The conveyance will be constructed with two <br /> components: an open lined ditch to capture surface flows, and an HDPE pipe to route <br /> flume flows. The southern portion of the existing flume will be maintained with much <br /> reduced flows and increased maintenance capability. <br /> Thank you in advance for your review. I can be reached at (719) 486-2150, ext. 723 if <br /> you have any questions. <br /> Sincerely, <br /> Bryce R. Romig <br /> Environmental Coordinator <br /> Climax Mine <br />