2017-06-30_HYDROLOGY - M2009082 - Laserfiche WebLink

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Parsons Mine SWSP June 30, 2017 Plan ID 5822 Page 5 of 10 Office of the State Engineer 1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866.3581 www.water.state.co.us acre-feet of evaporative losses, leaving 66.86 acre-feet of accretions to be lagged to the river. Past and projected recharge deliveries will result in a lagged accretion of 16.16 acre-feet accruing to the river during this plan period. Approximately 112.72 acre-feet of the Whiney Ditch water will be delivered directly to the Cache la Poudre River, as shown on attached Table 3, column 7. MM’s Whitney Ditch deliveries directly to the river will be made through the headgate of Kenny Tigges, a neighboring landowner. The Applicant obtained an agreement with Kenny Tigges and the Whitney Ditch to use Mr. Tigges’s headgate. The location of Mr. Tigges’ headgate is shown on attached Figure 3. The deliveries will be measured at the Tigges augmentation structure (WDID 0302904) and delivered back to Cache la Poudre River. The return flow obligations associated with Whitney Ditch water direct deliveries were determined to total 54.82 acre-feet calculated based on the return flow percentages for Zones 2-A and 2-B decreed in case no. 2008CW65, shown on Table 2, column 5, leaving 57.90 acre- feet of water available for replacement. The Whitney Ditch shares are insufficient to provide replacement during the months of March and April. MM plans to replace the remaining depletions during these months with water stored in the Heaton Reservoir under the junior water right decreed in case no. 2001CW193. Heaton Reservoir (WDID 0504089) is located in Section 9, T2N, R68W, 6th P.M. Water stored under the right decreed in case no. 2001CW193 is delivered to the reservoir through the Rural Ditch (WDID 0600551). The date of appropriation for the Heaton Reservoir storage right is October 26, 2001 for 680 acre-feet, conditional, subject to the right to fill and refill as described in case no. 2001CW193. Replacement water will be pumped from Heaton Reservoir directly into the St. Vrain River just downstream of the confluence with Boulder Creek. Replacement made out of Heaton Reservoir provides replacement supply that is conveyed to the South Platte River at the confluence of the Cache la Poudre River, downstream of the point of depletion on the Cache la Poudre River. The downstream replacement is allowed at times when the call is downstream of Heaton Reservoir and there is no dry up point between the point of depletion on the Cache la Poudre and the confluence with the South Platte River. Based upon a review of historical calls over the last 20 years, this downstream replacement of depletions could historically have occurred in March and April without causing injury. MM plans to pump a total of 2.14 acre-feet for Heaton Reservoir during March and April, as shown on the attached Table 3. The Applicant will need to obtain permission from the District 5 Water Commissioner prior to any credit for releases from Heaton Reservoir to ensure the Heaton Reservoir water can make it past any dry up locations between the confluence of Boulder Creek and the St. Vrain River to the confluence of the Cache La Poudre River and the South Platte River. The delivery schedule incorporates a transit loss of 18.25% based on the currently assessed rate of 0.5% per mile for a distance of 36.5miles. If a different transit loss is determined by the division engineer or water commissioner, the Applicant must modify their accounting and replacements as necessary to be consistent with the determined transit loss. Under this SWSP, MM requests to use any excess fully consumable water leased from the City of Greeley (“Greeley”) not required for replacement purposes in the MM’s combined SWSP for the Iverson Mine and the 35th Avenue Pit (WDID 0302546). MM’s predecessor, Lafarge West, Inc., traded its 550 Boyd and Freeman Ditch shares for 125 acre-feet of augmentation water from Greeley. MM acquired this lease from Lafarge as part of their acquisition of the Greeley 35th Ave Pit. The lease allows MM to use this water to cover depletions at Greeley 35th Ave Pit and surrounding land. A copy of the lease has been provided to this office. To the extent that excess fully consumable water is available, the leased replacement water may also be used to replace depletions at Parsons Mine. Fully consumable replacement water provided by Greeley will be returned to the river at one of the following locations: