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25th Avenue Pit SWSP, (Amendment) Page 6 of 9 May 30, 2017 Table 4- 138 shares of the Boyd and Freeman Ditch HCU Results Based on the historical study period of 1950 through 1977, Table 4 above provides a monthly summary of the estimated yield associated with the subject 138 shares of the Boyd and Freeman Ditch. The projected annual farm headgate delivery of the subject 138 shares of the Boyd and Freeman Ditch is estimated to be 127.1 acre-feet. The monthly return flow requirements will be determined by multiplying the monthly return flow factor by the total delivery during the previous 12 months. Monthly results shall be divided by the number of days in that month to determine the daily return flow obligation. During this SWSP period, the 138 shares of the Boyd and Freeman Ditch will be used as a replacement water source at the 25th Avenue Pit. The Applicant shall only take delivery of the 138 shares of the Boyd and Freeman Ditch from April 1st, through October 31st. The annual farm headgate diversions, in acre- feet, are presented in Table 4 above. These amounts are the historical average monthly and annual farm headgate diversions. The headgate of the Boyd and Freemen Ditch is located approximately 3 miles upstream from the 25th Avenue Pit. The water attributable to the 138 shares of the Boyd and Freeman Ditch must continue to be diverted in-priority at the river headgate and the historic consumptive use credits must be released back to the Cache la Poudre River through the Boyd and Freeman Ditch Return (WDID 0302914), located near the river headgate. A transit loss as determined by the Water Commissioner will be assessed. There are no intervening water rights between the headgate of the Boyd and Freeman Ditch and the point of depletions. The Boyd and Freeman Ditch water is only available for diversion during the irrigation season of April through October, therefore Greeley will utilize other water sources during the non-irrigation season such as reusable effluent discharged from the Greeley Water Pollution Control Facility (aka Greeley Sewer, WDID 0302312). The Greeley Sewer is located downstream of the 25th Avenue Pit but above the Ogilvy Ditch. Greeley may also release legally stored water from Flatiron Pits 1 and Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Farm Headgate Delivery 0 0 0 3.0 18.6 24.9 31.3 28.8 14.5 5.9 0 0 127.1 On Farm Depletion of Surface Water 0 0 0 1.6 9.9 14.3 17.2 15.8 7.6 3.5 0 0 69.9 Surface Return Flows 0 0 0 1.0 6.3 8.4 10.6 9.7 4.9 2.0 0 0 42.9 Ground Water Return Flow 0 0 0 0.3 2.1 2.8 3.5 3.2 1.6 0.7 0 0 14.3 Lagged Ground Water Return Flows 0.3 0.2 0.2 0.4 1.4 2.1 2.8 2.9 2.0 1.2 0.6 0.3 14.3 Total Return Flows 0.3 0.2 0.2 1.4 7.7 10.5 13.4 12.6 6.9 3.2 0.6 0.3 57.2 Average Net Depletion -0.3 -0.2 -0.2 1.6 10.9 14.4 17.9 16.2 7.6 2.7 -0.6 -0.3 69.9 Return Flow Factors 0.2% 0.2% 0.2% 47% 41% 42% 43% 44% 48% 54% 0.5% 0.2%