2022-10-26_HYDROLOGY - M2008082 - Laserfiche WebLink

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Ready Mix Concrete Substitute Water Supply Plan Page 6 of 9 October 26, 2022 Replacements The proposed source of replacement water for this SWSP is fully consumable water leased from the City of Aurora ("Aurora"). The Applicant provided a copy of the lease extension agreement with Aurora renewable through December 31, 2023 with the SWSP request, and a copy of the lease is attached to this letter. Water leased from Aurora would be released from the Robert W. Hite Treatment Facility (a.k.a. Metro Wastewater Treatment Plant (MWWTP)) (WDID 0200700) in the SW '/a of the SW '/a of Section 1, Township 3 South, Range 68 West of the 6th P.M. A transit loss of 0.5% per mile is currently assessed from April through October and a transit loss of 0.25% per mile is currently assessed during November through March for delivery of water down the South Platte River. Such transit losses are subject to modification by the Division Engineer. The MWWTP is located approximately 25 miles upstream of the confluence of the South Platte River and Big Dry Creek where the mining depletions will accrue to the river, therefore the total transit loss will be 12.5% during the irrigation season and 6.25% during the non-irrigation season. Replacement supplies from Aurora include transit loss, so all Morton Lakes and Holton Lakes depletions are fully replaced at the point of depletions through December 31, 2022 (Table 3, attached). The Applicant shall ensure that the replacement water makes it to the calling water right. The Division Engineer, or their designated representative, will administer all such water transported in the South Platte River or its tributaries, including water for replacement of depletions, past intervening headgates to ensure that such water is not intercepted or otherwise diminished in quantity by diversion, use or other interference by intervening water rights and to assure that such water remains available and suitable for Applicant's uses under this plan, except when any intervening headgate is diverting the entire flow of("sweeping") the river. In the event that delivery past headgates which sweep the river requires the installation of a bypass structure or the use of an existing bypass structure by agreement with a third-party, Applicant is responsible for either installing a new bypass structure with a continuous recording measuring device(s) as approved by the Water Commissioner or securing an agreement with a third-party to use an existing bypass structure and providing such information and agreement to the Division Engineer. Conditions of Approval I hereby approve this proposed SWSP in accordance with section 37-90-137(11), C.R.S. subject to the following conditions: 1. This SWSP is approved with an effective date of January 1, 2022 and shall be valid through December 31, 2022 unless otherwise revoked or superseded by a decree. 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/DRMS permit) no later than November 1, 2022. If a renewal request is received after the expiration date of this plan, it will be considered a request for a new SWSP and the $1,593 filing fee will apply. 2. Well permit no. 82252-F has been obtained for Stage 1, 2, 5, 6A, 613, 6C/6D, 7A and 7B of the Morton-Holton Lakes site and this permit remains valid. If mining of Stage 3B is proposed as part of any SWSP renewal a new well permit must be obtained for Stage 3B in accordance with 5 37- 90-137(2), C.R.S., and an approved SWSP prior to commencing mining of that area. Any application will be evaluated subsequent to approval of this SWSP. The provisions of 5 37-90- 137(2), C.R.S., prohibit 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 in accordance with the procedural rules in 2CCR402-5. The hearing will 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.