2014-01-09_HYDROLOGY - M2011049 - Laserfiche WebLink

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Partners Combined SWSP Page 3 of 5 December 30, 2013 All three WWTPs are located downstream of the point of depletion and thus no transit loss will be applied to any releases made for this SWSP. However there are water rights between the point of depletion and the WWTPs that have the potential to be injured should they place a call. Therefore, the ELCO municipal return credits are not a valid replacement source when an intervening water right places a call. Depending on which WWTP is supplying the municipal reuse credits, the intervening water rights may include the Fort Collins Irrigation Canal, Larimer and Weld Irrigation Canal, Lake Canal, Coy Ditch, Timnath Reservoir Inlet, Box Elder Ditch, and the Fossil Creek Reservoir Inlet. Because of this limitation, the applicant does not rely on ELCO municipal return credits in their projections, however they reserve the right to use this source when available and at their discretion. The second source of replacement water consists of various supplies owned by the City of Greeley or the Tri- Districts as follows: Owner Decree Description City of Greeley 87CW042 Milton Seaman Reservoir Water stored under 87CW42. City of Greeley Windy Gap Units - Wholly consumable transbasin water pursuant to 61 units owned by Greeley in the Windy Gap Project. City of Greeley 06CW258 Water pursuant to Greeley's 75 shares of stock in the Windsor Reservoir and Canal Company that entitle Greeley to water from the Laramie River System. A decree was entered in this case on January 4, 2012. Tri- Districts 03CW421 Reusable supplies stored in an account in Chambers Reservoir for water decreed in case no 03CW421. Tri- Districts 89CW071 Transmountain water available from the Divide Canal and Reservoir Company in case no 89CW071. Water will primarily be released from Greeley's mountain reservoirs although the Tri- Districts may supplement the Greeley releases. The applicant has included a 5% transit loss through the Poudre Canyon and a 0.25% per mile transit loss from the mouth of the Poudre Canyon to the Home Office Pit for a total transit loss of 7.8 %. This loss will be applied to Greeley's and the Tri- Districts' replacement supplies unless the Partners receive prior approval from the District 3 Water Commissioner to make replacements downstream of the Home Office Pit. Appropriate transit losses are subject to the Water Commissioners approval for any replacements made upstream of the Home Office Pit. The total amount of replacement water to be released is 218.70 acre -feet for 2014 and 235.75 acre -feet for 2015. See Table 7 for the projected monthly replacement schedule. Long Term Augmentation In accordance with the letter dated April 30, 2010 (copy attached) from the Colorado Division of Reclamation, Mining, and Safety ( "DRMS "), all sand and gravel mining operators must comply with the requirements of the Colorado Reclamation Act and the Mineral Rules and Regulations for the protection of water resources. To prevent long term injurious stream depletions that result from mining related exposure of ground water, future operations will include constructing slurry walls around each of the five ponds to construct water storage reservoirs. The Partners obtained a conditional water right for these future reservoirs (collectively known as the Overland Trail Reservoirs) in water court case no. 2000CW251. The owners and operators of the mining site are municipal entities and thus a bond to cover the cost of lining or backfilling the pits is not required.