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'I <br />~, <br />Response: Bishop Brogden has updated the number and location of the wells in the <br />vicinity of the amendment azea that are currently registered with the <br />State Engineer's Office. See Attachment #8, Figure 2, Page 9. <br />33. Comment: In the list of Appendix, the applicant provided Case No. 93CW159 <br />noted as the Rockin' WP Ranch Lake #5. It is noted as 1,820 ac-ft <br />storage area. What is the Rockin' WP Ranch Lake #5, and will it be <br />lined with a slurry wall? <br />Response: Rockin' WP Ranch Lake #5 refers to the proposed reservoir located at <br />~. the southeast end of the amended area identified as Stage 1 of Phase III. <br /> I/ 34. Comment: The applicant has provided engineering designs for a low water crossing <br /> of St. Vrain Creek. The Division has several questions regarding the <br /> proposed low water crossing(s). How many crossings will the operator <br /> construct? Where will the crossing(s) be located? What time of year will <br /> the operator install the crossing(s)? At what phase in the mining & <br /> reclamation plan will the crossing(s) be installed? Will the crossing(s) be <br /> temporary or permanent structures? Has the operator secured a 404 <br /> permit or nationwide permit from the US Army Corps of Engineers for <br /> installation ofthe crossing(s)? What will be the height of the crossing(s) <br />d <br />b <br />h <br />t <br />b <br />d? Will th <br />i <br />d <br />i <br />ll <br />be <br />b <br /> ove t <br />ream <br />su <br />a <br />e s <br />e cross <br />ng(s) an <br />w <br />ng wa <br />s <br />merge <br />e <br /> during peak flows expected throughout the life of the operation? Will <br /> the expected peak flows be able to pass over or around the crossing <br /> structure(s) with minirnal or no impact to the surrounding stream <br />' channel? The applicant should revise one of the maps provided to show <br /> the location of the proposed structure(s). Please respond. <br /> Response: The low water crossing was previously constructed in 1996. <br /> /35 <br />C <br />t Pl <br />i <br />t th <br />l <br />f th <br />NPDES di <br />h <br />i <br />t <br />th <br />d <br />i <br /> . <br />ommen <br />: <br />R ease <br />e <br />ocat <br />e <br />sc <br />arge po <br />n <br />(s) on <br />e map. <br />ep <br />c <br />on o <br />Th <br />i <br />h <br />ill be <br />di <br />h <br />i <br />lif <br />f <br />h <br />d <br /> esponse: ere w <br />var <br />ous <br />nts over t <br />e propose <br />sc <br />arge po <br />e <br />e o <br />t <br /> mining operation. Currently, ground water discharges from WMI's <br /> Lyons operation aze authorized by the Colorado Department of Health <br /> under Permit No. COG-50000. See Attachment # 12, NPDES Permit. <br /> <br /> <br /> DMG Adequacy Review Response Page 14 <br />