2013-07-29_HYDROLOGY - M1979191 - Laserfiche WebLink

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Mr. Jared Dains Amended Lafarge Middle Poudre Combined SWSP July 29, 2013 Page 4 of 7 replacement water under MMM's South Platte Combined Replacement Plan are fully consumable water leased from the City of Aurora, and dewatering credits associated with mining operations at the Riverbend East Pit (WDID 0203041). Both sources are described more completely in the approval dated January 28, 2013 for MMM's South Platte Combined Replacement Plan. The releases of water leased from Aurora will be made from the Metropolitan Waste Water Treatment Plant (WDID 0200700) located in Denver on the South Platte River approximately 66.1 miles upstream from the Cache la Poudre confluence. The Riverbend East Pit is located on the South Platte River between the Metropolitan Waste Water Treatment Plant and the Cache la Poudre confluence. The Applicant will account for a transit loss of 0.5% per mile for the 66.1 miles from the Metropolitan Waste Water Treatment Plant to the confluence (33.05% total transit loss). Conveyance loss for delivery of augmentation water to the Cache la Poudre River is subject to assessment and modification as determined by the division engineer. During the winter it is possible for a call to be placed on the Evans Number 2 ditch for a Milton Reservoir call, or any other water rights which could potentially sweep the river. It is the Applicant's responsibility to contact the District 2 water commissioner to ensure this water is being delivered to the Cache la Poudre and South Platte River confluence. There is no call in the winter for the stretch of the Cache la Poudre River between these sites and the confluence with the South Platte River. As for using dewatering credits associated with mining operation at the Riverbend East Pit, prior to using these credits the District 2 Water Commissioner must inspect and approve the measuring devices used to deliver these credits to the River, and MMM must provide daily accounting to the District 2 Water Commissioner for the MMM's South Platte Combined Replacement Plan. Monthly breakdowns of the stream depletions from the mining operations as well as the replacements for this amended SWSP are shown in the attached Table 5. Conditions of Approval hereby approve this SWSP amendment in accordance with § 37 -90- 137(11), C.R.S., subject to the original terms and conditions except where changed below. For simplicity all terms and conditions are listed below: 1. This plan amendment has an effective date of July 29, 2013 and shall be valid through December 31, 2013 unless otherwise revoked or modified. If this plan will not be made absolute by a water court action by the plan's expiration date, a renewal request must be submitted to this office with the statutory fee (currently $257 per pit) for each gravel pit no later than November 1, 2013. 2 A new well permit must be obtained for the current use and exposed surface area of the Kyger Pit in accordance with § 37 -90- 137(2) and (11), C.R.S. in conjunction with this plan. The provisions of § 37 -90- 137(2), C.R.S. prohibits the issuance of a permit for a well to be located within 600 feet of any existing well, unless the State Engineer finds that circumstances so warrant after a hearing held in accordance with the procedural rules in 2CCR402 -5. This hearing may be waived if you are able to obtain statements from the owners of all wells within 600 feet, verifying that they have no objection to your use of the proposed well. Should a new well permit be denied for reasons of 600 foot spacing, or any other legitimate reason, the Kyger Pit will be dropped from this SWSP. 3. The total amount of lagged depletions from each of the pits shall not exceed the values shown in the attached Table 1.