2007-12-05_HYDROLOGY - M1977081 - Laserfiche WebLink

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,l Mr. Richard T. Raines Greeley West Pit Substitute Water Supply Plan (M-77-081) October 23, 2007 Page 2 A portion of the Greeley Canal No. 3 was changed in Division 1 Water Court in case no. 96CW658, the Poudre Prairie Mutual Reservoir and Irrigation Company. This case found that 519.7 shares have been used to irrigate 3,501 acres with an average historic consumptive use of 5,358 acre-feet per year, which yields an average consumptive use credit of 10.31 acre-feet per share (5,358 acre-feet/519.7 shares). The 7 shares to be used in this plan results in a consumptive use credit of 72.2 acre-feet per year (10.31 acre-feet per share x 7 shares). The 7 shares historically irrigated 71.8 acres, which are located in the eastern portion of the Greeley West Pit site and were a portion of the original 3,501 acres of irrigated lands. The 71.8 acres is no longer irrigated due to mining operation and ground water lakes. The return flow obligations from the 7 shares of the Greeley Canal No. 3 will be maintained by this plan. The monthly depletions and replacement requirements are found on the attached Table I. I hereby approve the proposed substitute water supply plan in accordance with §37-90- 137(11), C.R.S. subject to the following conditions: 1. This plan is approved with the effective date of November 1, 2007 and shall be valid through October 31, 2008 unless otherwise revoked or modified. If this plan will not be made absolute by a water court action by the plan's expiration date, a renewal request must be submitted to this office with the statutory fee of $257 no later than September 15, 2008. 2. Well permit no. 59809-F was obtained for the current use and exposed pond surface area of the Greeley West Pit in accordance with §37-90-137(2) and (11), C.R.S. Applicant shall comply with the terms and conditions of permit no. 59809-F. 3. The total surface area of the groundwater exposed after December 31, 1980 must not exceed 29.7 acres, which results in an evaporative loss of 86.9 acre-feet per year. Should the total consumption at the pit exceed this amount prior to the expiration date of this plan, an amendment will need to be filed with this office. 4. Approval of this plan is for the purpose as stated herein. Any additional uses for which the water may be used must first be approved by this office. Any future additional consumptive use credit given (e.g. agricultural water transfer) for this site must consider all previous credits given. 5. The water attributable to 7 shares of the Greeley Canal No. 3 must continue to be diverted in priority at the ditch then measured back to the Cache La Poudre River in the vicinity of the Greeley West Pit. Adequate measuring devices acceptable to the water commissioner must be installed. 6. All releases of replacement water must be sufficient to cover all out-of-priority depletions in time, place, and amount and must be made under the direction and/or the approval of the water commissioner. The release of replacement water may be aggregated to maximize beneficial use. The water commissioner and/or the division engineer shall determine the rate and timing of an aggregated release.