2011-03-30_HYDROLOGY - M1978056 (2)

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Cheryl Signs, P.E. Kurtz Pit, DRMS-1999-006 Page 5 dewatering at the site ceases. This information must be accepted by this office prior to claiming any credit for the native vegetation. 7. Approval of this plan is for the purposes as stated herein. This office must fast approve any additional uses for the water. Any future additional historic consumptive use credit given (e.g., agricultural water transfer) for this site must consider all previous credits given. 6. All pumping for dust control shall be measured in a manner acceptable to the division engineer. 9. The replacement water that is the subject of this. plan cannot be sold or leased to any other entity. As a condition of subsequent renewals of this substitute water supply plan, the replacement water must be appurtenant to this site until a plan for augmentation is obtained. All replacement water must be concurrent with depletions in quantity, timing, and locations. 10. Adequate accounting of depletions and replacements must be provided to the division engineer in Greeley (Div1Accountin-QOstate.co.us) and the water commissioner (Shera SumerFord at Shera.SumerfordO-state.co.us) on a monthly basis or other interval acceptable to both of them. The accounting form provided with your application is subject to modification and approval by the division engineer. All amounts shall be in acre-feet. In addition, the Applicant shall submit a report from the entity making replacements; for this plan, that entity is the Varra Companies, Inc. ("VCI"). The report shall include an accounting of all of the Rural Ditch water and junior water right water controlled by VCI, showing the total volume of water under its control and the amount committed to each of the recipients of the water. 11. 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. 12. 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 years prior to the completion of mining to include, but not be limited to, long-term evaporation losses and tagged depletions. If a lined pond results after reclamation, replacement of lagged depletions shall continue until there is no longer an effect on stream flow. Granting of this plan does not imply approval by this office of any such court application(s). 13. Dewatering at this site will produce delayed depletions to the stream system. As tong as the pit is continuously dewatered, the water retumed to the stream system should be adequate to offset the depletions attributable to the dewatering operation. If dewatering at the site ceases, the delayed depletions must be addressed. At least three years prior to completion of dewatering, a plan must be submitted that specifies how the post pumping dewatering depletions (including refilling of the pit) will be replaced, in time, place and amount. 14. In accordance with the letter dated April 30, 2010 (copy attached) from the Colorado Division of Reclamation, Mining, and Safety ("DRMS"), all sand and gravel mining operators must comply with the requirements of the Colorado Reclamation Act and the Mineral Rules and Regulations for the protection of water resources. The April 30, 2010 letter from DRMS requires that you provide information to DRMS to demonstrate you can replace long term injurious stream depletions that result from mining related exposure of ground water. The DRMS letter identifies flour approaches to satisfy this requirement. If the information you are providing to DRMS is included under the approaches numbered 1 - 3, a copy of that iii#orrra#iva: reeds to also be provided to this office (the nivision of Water Resources).