2016-02-17_HYDROLOGY - M1996052 - Laserfiche WebLink

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Mr. Rick Parsons, P.E. February 10, 2016 L.G. Everist Combined SWSP Page 9 of 14 South Platte River L. G. Everist owns 2.25 shares of the Lupton Bottom Ditch. Of the 2.25 shares of the Lupton Bottom Ditch water, 1 share will be dedicated to this plan in 2016 and 2017. The 2.25 shares were historically used to irrigate 95 acres of corn and small vegetables. The land historically irrigated by the 2.25 shares is the same land that is currently being mined at the Ft. Lupton Sand and Gravel Pit. Assuming a 10% ditch loss and a 55% irrigation efficiency, the dry-year consumptive use of the 2.25 shares was determined to be 136 acre-feet. The prorated consumptive use and return flows for the 1 share is 60.4 acre-feet. 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. Replacements will also be made from the Star Water Resource Reservoir when there is no call on the South Platte River between the Ft. Lupton Sand and Gravel Pit and the confluence of the South Plate River and Saint Vrain Creek. Transit losses from a point directly east of the reservoir on the South Platte River will be 0.50 percent per mile summer transit loss and 0.25 percent per mile winter transit loss. The transit loss percentages are subject to change depending upon current conditions. If transit losses will change they will be communicated by the Division Engineer via email to the Division One Call List.The applicant shall obtain prior permission from the District 2 and 3 Water Commissioners when making releases from this reservoir. Credit will not be given to any releases not measured and recorded to the satisfaction of the District 2 and 3 Water Commissioner or Division Engineer. During times a winter call on the reach of the South Platte (i.e., the Milton Reservoir storage right at the Platte Valley Canal Headgate), replacement supplies will be from L.G. Everist Laramie Fox Hills wells. The nontributary Laramie-Fox Hills aquifer water will be withdrawn by existing wells pursuant to permit nos. 77371-F, 77372-F, 77373-F, and 77374-F. The wells are currently permitted for industrial, commercial and augmentation use and are allowed a combined average annual withdrawal of 241.66 acre-feet and a pumping rate of 150 gpm. The wells are further described in the following Table F. The Applicant's accounting includes the 2% relinquishment requirement for the nontributary Laramie-Fox Hills water. TABLE F - L.G. EVERIST LARAMIE FOX HILLS WELL SUMMARY Well Field WDID 0204101 0204101 0204101 0204101 Well Field Name EVERIST LFH WL EVERIST LFH WL EVERIST LFH WL EVERIST LFH FLD FLD FLD WL FLD Well WDID 0210211 0210212 0210213 0210375 Well Name EVERIST LFH EVERIST LFH EVERIST LFH EVERIST LFH WELL 77371-F WELL 77372-F WELL 77373-F WELL 77374-F Relevant Well 77371-F 77372-F 77373-F 77374-F Permit Well Location SW, NE SEC 30, NW, NW SEC 24, NW, NW SEC 30, NE, NW SEC 31, 2N, 66W 1 S 65W 2N, 66W 2N, 66W Aquifer LAR/FOX HILLS LAR/FOX HILLS I LAR/FOX HILLS LAR/FOX HILLS Allowable AF 241.66 ACRE FEET COMBINED Amount