2012-04-30_HYDROLOGY - M1986015 - Laserfiche WebLink

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Mr. Paul Bruss, E.I. Page 3 April 30, 2012 ditch, will be replaced using releases of the Pueblo water (from Pueblo reservoir or other equivalent source such as Clear Creek reservoir). Two replacement scenarios may be implemented over the course of this plan period. Scenario A represents the current operations where PBWW cannot store Hamp -Bell Ditch credits. Scenario B represents possible future operations that will take effect once PBWW has the right to store Hamp -Bell Ditch credits. The operational scenario giving monthly depletions and replacements is detailed on your Tables 5A & 5B, which are attached. The State and Division Engineers have reviewed the plan and the adequacy of each source of water provided for use as augmentation water, including, where necessary, the historical consumptive use of each water right, and return flows from diversion of waters imported into the Arkansas River Basin or other fully consumable waters proposed for use as augmentation water. In accordance with Section 25 -8- 202(7), C.R.S. and Senate Bill 89 -181 Rules and Regulations adopted on February 4, 1992, the State Engineer has determined that subject to the terms and conditions below, the replacement supply is of a quality to meet the requirements of use to senior appropriators. CONDITIONS OF APPROVAL I hereby approve the proposed substitute water supply plan in accordance with Section 37 -90- 137(11), C.R.S., subject to the following conditions: 1. This plan shall be valid through January 31, 2014, unless otherwise revoked or modified. The previous plans covering the period February 1, 2008 — January 31, 2012 have been approved. 2. Transit Mix shall provide this office and the Division office in Pueblo a copy of the extended water lease (through January 31, 2014) with the PBWW prior to the expiration of their current lease, September 30, 2012. 3. The total surface area of exposed ground water and total consumption at the pit may not exceed the amounts given in the attached tables. 4. The total combined amount of exposed ground water and dewatered area at the Pueblo East pit may not exceed 19.7 acres. Documentation of pond size may be required by the Division Engineer in the form of an aerial photo evaluation or survey by a Professional Land Surveyor during the plan year or in years covered by subsequent renewals of this plan. Should the combined exposed surface area of Phases 1 and 2 exceed 12 acres (as allowed by permit no. 61509 -F), the operator shall apply for a new permit for the increased exposed surface area. 5. Release of the Pueblo waters must be under the Division Engineer's direction and approval. 6. All diversions for dust suppression must be metered in compliance with the "Amended Rules Governing the Measurement of Tributary Ground Water Diversions Located in the Arkansas River Basin." 7. Dewatering at this site will produce delayed depletions to the stream system. As long as the pit is continuously dewatered, the water returned to the stream system should be adequate to offset the depletions attributable to the dewatering operation. Once dewatering at the site ceases, the delayed depletions must be addressed. Accordingly, dewatering is required to