2020-12-03_HYDROLOGY - M1982155 - Laserfiche WebLink

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Mr. Abdullah Javed, El December 3, 2020 Page 3 of 6 The total of 3.5 acre-feet per year for dust control would be withdrawn from well permit no. 59834-F and piped approximately one mile to the storage tank and/or ground water pond. The water withdrawn from the ground water pond will be less than or equal to water delivery, so Schmidt does not anticipate appropriating additional groundwater within the pit itself other than water lost to evaporation. The timing of depletions to Rock Creek attributable to pumping from the sump well no. 59834-F were calculated using the Integrated Decision Support System AWAS program utilizing the following lagging parameters: distance to stream = 390 feet, transmissivity = 30,000 gallons per foot per day, aquifer width = 3,500 feet and specific yield = 0.2. Due to the location of the sump and the lagging parameters used, the steady-state lagged stream depletions were determined to be 3.49 acre-feet/year as shown in Table No. 3. The ground water pond is not located within the defined alluvium aquifer; therefore, for the purpose of this SWSP, the Applicant assumed steady-state conditions where the depletions accrue to the stream uniformly through the year. The total steady-state depletions covered by this SWSP are 4.07 acre-feet/year as shown on the attached Table 3. The SWSP does not allow for use of storm water that may collect in on -site pits. Storm water collected on site will be administered in accordance with this office's February 11, 2016 Administrative Statement Regarding the Management of Storm Water Detention Facilities and Post-Wildland Fire Facilities in Colorado. REPLACEMENTS Replacement water for the use of water leased from CS-U will be managed by CS-U pursuant to decrees for Case nos. W-4376,16CW3056, 84CW202, 84CW203, 86CW118(b). and 89CW36. The replacement water will be supplied using reusable sewered return flows released from the Las Vegas Water Reclamation Facility and/or non-sewered return flows. Replacement water for pumping of well permit nos. 59834-F and 77721-F will be supplied by historical consumptive use credits from Applicant's 20 shares of the Fountain Mutual Irrigation Company (FMIC) to Fountain Creek at FMIC's augmentation station located on Spring Creek in Colorado Springs. Replacement credits for the Fountain Mutual shares have averaged 0.7 acre-feet per share per year, representing a portion of farm headgate delivery. These share percentages have been confirmed in previous court cases, most recently by the Division 2 Water Court in case no. 07CW51. You have estimated that the 20 shares would yield 14 acre-feet per year of replacement water, which is sufficient to cover the estimated depletions from the consumptive uses mentioned above. For purposes of this SWSP, historical consumptive use credit for the 20 shares of FMIC will be accepted in accordance with the terms described in case no. 07CW51. The Applicant shall also be entitled to use its pro rata share of the water attributable to its FMIC shares that is placed into storage, when storage is available, in FMIC's 10,000 acre feet of decreed storage in Big Johnson Reservoir, with prior notification of the Water