2012-12-12_HYDROLOGY - M2006003 - Laserfiche WebLink

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Mr. Andy Rodriguez, P.E. Bestway's Brighton Combined SWSP December 12, 2012 Page 4 of 5 control and 16.40 acre -feet for concrete production. Mining activities outside of an approved slurry wall resulting in ground water depletions due to water lost in product are not projected to occur, and shall not occur during this SWSP approval period. 6. Total consumption at the Parker - Dersham and Baseline Pit must not exceed the aforementioned amounts unless an amendment is made to this plan. 7. All diversions shall be measured in a manner acceptable to the division engineer. The Applicant shall install and maintain such measuring devices as required by the division engineer for operation of this SWSP. 8. All releases of replacement water must be sufficient to cover all out of priority depletions and be made under the direction and /or approval of the water commissioner. The replacement may be aggregated to maximize beneficial use. The water commissioner and /or division engineer shall determine the rate and timing of an aggregated release. 9. Water shall not be impounded in the reservoirs except pursuant to lawful diversions allowed by statute or decree. At all other times, all inflow of water into the reservoirs from any source, including precipitation and ground water inflows, shall be removed by the applicant. The water may be removed from within the lined area and returned to the stream system through surface flow or ground water recharge without need for replacement, so long as the operator does not put the water to beneficial use. 10. The name, mailing address, and phone number of the contact person who will be responsible for operation and accounting of this plan must be provided on the accounting forms to the division engineer and water commissioner. 11. Adequate accounting of depletions and replacements must be provided to the Division Engineer in Greeley (Div1Accountinqstate.co.us) and the water commissioner (William Schneider at William.Schneiderstate.co.us) on a monthly basis. All amounts shall be in acre -feet. All submitted accounting shall conform to the Administration Protocol "Augmentation Plan Accounting, Division One - South Platte River" (attached). In addition, the applicant shall verify that the entities making replacement are identifying this use on their accounting submitted to our office. For the period of this plan, that entity is the City of Aurora (WDID 0802593 — Aurora Reuse). 12. The approval of this substitute water supply plan does not relieve the Applicant and /or landowner of the requirement to obtain a Water Court decree approving a permanent plan for augmentation or mitigation to ensure the permanent replacement of all depletions, including long -term evaporation losses and lagged depletions after gravel mining operations have ceased. If reclamation of the mine site will produce a permanent water surface exposing groundwater to evaporation, an application for a plan for augmentation must be filed with the Division 1 Water Court at least three (3) years prior to the completion of mining to include, but not be limited to, long -term evaporation losses and lagged depletions. If a lined pond results after reclamation, replacement of lagged depletions shall continue until there is no longer an effect on stream flow. 13. This substitute water supply plan may be revoked or modified at any time should it be determined that injury to other water rights has or will occur as a result of this plan. Should this substitute water supply plan expire without renewal or be revoked prior to adjudication of a permanent plan for augmentation, all excavation of product from below the water table, and all other use of water at the pit, must cease immediately.