2019-07-30_PERMIT FILE - M1996052

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i . L.G. Everist Combined SWSP Page 9 of 16 March 14, 2018 Return Flows Ground Water 0 0 0 8.89 11.11 12.0 10.22 12.44 8.89 8.44 0 0 72.0 Return Flow Lagged Ground Water 0.0 0.0 0.44 5.75 10.18 11.51 10.62 11.06 10.18 8.41 3.54 0.44 72.13 Return Flows Total Return 0.0 0.0 0.44 14.64 21.29 23.51 20.84 23.5 19.07 16.85 3.54 0.44 144.12 Flows Average Net 0.0 0.0 -0.4 4.47 8.04 11.16 16.05 10.27 10.27 4.48 -3.5 -0.4 60.4 Depletion Return Flow 0.0% 0.0% 0.2% 77% 73% 68% 56% 70% 65% 79% 1.7% 0.2% NA Factor For the months of April through October the daily return flow obligation will be determined by multiplying the applicable monthly return flow factor by the total daily deliveries associated with the subject shares. For the months of November through March the daily return flow obligation will be determined by multiplying the applicable monthly return flow factor by the previous year's (November through October) total deliveries associated with the subject shares, and then divided by the number of days in the month. The Applicant's dry year analysis is accepted for this SWSP. However, the SEO determined that a monthly historical consumptive use analysis using the study period of 1950 through 2002 is more representative of the actual conditions. Therefore for any renewal request of this SWSP, the Applicant shall provide a monthly historical consumptive use analysis with a study period of 1950 through 2002 for the Lupton Bottom Ditch shares. Such analysis shall justify all assumptions used in the analysis, including, but not limited to, the irrigation efficiency, historically irrigated area and cropping. The Lupton Bottom shares will be delivered back to the South Platte River at either the augmentation station located just north of WCR 14.5 (WDID 0202917) or the East Lateral Ditch into Little Dry Creek (WDID 0202307). The East Lateral Ditch into Little Dry Creek augmentation station is preferred for all releases, and if the WCR 14.5 augmentation station is used, the Applicant is required to first contact the District 2 Water Commissioner. Due to the distance from the augmentation station to the river, the Water Commissioner may assess transit losses on the amount released from the WCR 14.5 augmentation station. The Applicant proposes that deliveries will be limited to April through October and will be limited to the maximum monthly and annual farm headgate deliveries. The maximum monthly and annual farm headgate deliveries cannot be granted in a SWSP, since a SWSP is only approved for one or two year period. Therefore, for the period of the SWSP, the Applicant's share delivery will be limited to the historical monthly average and annual average dry-year farm headgate deliveries, as shown in Table H above. As requested for the Rural Ditch shares, the accounting for this plan must be updated to show the farm headgate deliveries for the Lupton Bottom shares and the associated monthly and annual volumetric limits.