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71uttleApplegate,lnc. Consultants for Land, Mineral and Water Development January 29, 1999 Mr. Thomas Schreiner Division of Minerals and Geology 1313 Sherman Street Room 215 Denver, CO 80203 RE: M&G Pit, Technical Revision No.4, Permit No. M-86-079 Dear Mr. Schreiner: III IIIIIIIIIIIIIIII 999 RECEIVED FEB O 1 1999 Owls:cn of Minerals 8 Geology The following information is in response to your adequacy concems letter of December 23, 1998. This information is provided in the same order as your concerns. .. . Attached.is a vvell,location map showing oae,well installed.since'.I986;withiri 600,feet `of the~north wadi pond:,:This well was a replacement for~one installed around 1940. The new well, installed in 1990 has a depth of 40 feet, which is still located in the South Platte alluvium. Also included aze the case information on both the old well and the replacement well. The current permit still allows for a maximum sized lake on the property. This could be up to 83 acres of exposed water surface. As the azea is now, the south pond and the north wash pond are physically connected most of the yeaz when the water table is up. There are approximately 71 acres total that will be left as open water. This is an additional 10 acres from the original permitted water surface azea. The landowner would be the applicant and holder of a substitute water supply plan to cover the evaporative losses from the exposed water at the site. The sowce of replacement water is shares of the Fulton Ditch owned by the property owner. Currently the Office of the State Engineer is reviewing information submitted for approval of the substitute supply plan. Our understanding of the status is there is one outstanding issue regarding the determination of the specific headgate on the Fulton Ditch that could be used for making deliveries of the ditch shares to the river. This issue was being discussed today in a meeting with the ditch company and the property owner. The substitute supply plan covers the potential evaporative losses during the mining operation. Once final reclamation is completed, the plan will be converted to a permanent augmentation plan to cover the evaporative losses from the lake. 11990 Grant Street, Suite 304 • Denver, Colorado 80233 • (303) 452-6611 • Fax (303) 452-2759