Laserfiche WebLink
STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman SVeet, Room 818 <br />Denver, Colorado 80203 <br />Phone (303) 866-3581 <br />FAX (303) 866-3589 <br />wvn¢watecsta[e.co. us <br />November 23, 2004 <br />Mr. Brian J. Venn <br />Leonard Rice Consulting Water Engineers Inc. <br />2000 Clay Street, Suite 300 <br />Denver, Colorado 80211-5119 <br />Re: S&H Mine Gravel Pit, Substitu~ Water Supply Plan <br />DMG File No. M-2000-158 <br />Section 35, T4N, R67W, 6`" P.M. <br />Water Division 1, Water District 2 <br />Dear Mr. Venn: <br />p4'`Oto <br />a~' <br />~~ <br />N <br />1 1 <br />x w <br />t 1876 x <br />I/ Bill Owens <br />Governor <br />RECEI VEp Ezecotl eeDigrector <br />DEC 0 1 1004 Hal D. Simpson, P.E. <br />State Engineer <br />Division ~f Minerals and Geology <br />We have received you letter of November 15, 2004, requesting renewal of the above <br />referenced substitute water supply plan to cover depletions caused by an existing gravel mining <br />operation. The required fee of $217.00 for the renewal of this substitute supply plan has been <br />submitted. The original supply plan was approved on April 30, 2001 and most recently renewed <br />on January 14, 2004. <br />This plan describes the actual uses for 2003 and 2004 and the projected uses for 2005. <br />According to the information submitted, no water surface was exposed within the permit boundary <br />prior to January 1, 1981. <br />Mining at the site may be done under wet conditions with a dredge directly exposing <br />groundwater or under dry conditions by dewatering the pit area. The area of exposed <br />groundwater specified in the plan assumes that the area will be mined under wet conditions. <br />The anticipated consumptive use for 2005 consists of 27.1 acre-feet of evaporation loss <br />from a maximum exposed area of 13.53 acres, 8.83 acre-feet lost in product (4% moisture of <br />300,000 tons of raw material) and 3.07 acre-feet of water used for dust control (total 39.01 acre- <br />feet). The exposed pond area gradually increases from 3.73 acres in January 2005 to 13.53 <br />acres in December 2005. See the table below for the area exposed monthly. <br />The S&H Mine Gravel Pit is located approximately 2,900 feet from the Sauth Platte River. <br />The Applicant has provided a monthly schedule of lagged actual depletions to the river system, <br />together with a schedule of replacement requirements. While this replacement amount matches - <br />calculated river depletions, the deficit between pit and river depletions will need to be accounted <br />for in future years. <br />f <br />~~.~ <br />