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Melanie Lawrence <br />August 11, 2008 <br />Page 4 <br />and 5.0 acre-feet of water used for dust suppression. Should the losses associated with <br />the mining operation exceed 43.55 acre-feet or the lagged annual depletions to the South <br />Platte River exceed 46.0 acre-feet prior to the expiration date of this plan, an amendment <br />will need to be filed with this office. <br />3. Dewatering at this site, outside of an approved liner, will produce delayed depletions to <br />the stream system. As long as the pit is continuously dewatered, the water returned to <br />the stream system should be adequate to offset the depletions. However, once <br />dewatering at the site ceases the delayed depletions must be addressed. At least three <br />years prior to completion of dewatering, a plan must bet submitted that specifies how the <br />post pumping dewatering depletions will be replaced, in time, place and amount. <br />4. All pumping for dust control shall be measured in a manner acceptable to the division <br />engineer. <br />5. Conveyance loss for delivery of augmentation water to the South Platte River is subject <br />to assessment and modification as determined by the division engineer. <br />6. The approval of this substitute water supply plan does not relieve the Applicant and/or <br />landowner of the requirement to obtain a Water Court: decree approving a permanent <br />plan for augmentation or mitigation to ensure the permanent replacement of all <br />depletions, including long-term evaporation losses and lagged depletions after gravel <br />mining operations have ceased. If reclamation of the mane site will produce a permanent <br />water surface exposing groundwater to evaporation, an application for a plan for <br />augmentation must be filed with the Division 1 Water Court at least three (3) years prior <br />to the completion of mining to include, but not be limited to, long-term evaporation losses <br />and lagged depletions. If a lined pond results after reclamation, replacement of lagged <br />depletions shall continue until there is no longer an effect on stream flow. <br />7. The Water Commissioners responsible for the administration of this plan are Mr. Scott <br />Edgar, 1735 Dolores River Drive, Windsor, CO 80550, phone no. (970) 686-0628. The <br />applicant shall maintain daily records of all diversions, replacements, and the amount of <br />water used for each particular purpose. The applicant shall provide a report of these <br />records to the division engineer and the water commissioners on a monthly basis on a <br />form approved by them. The accounting must be submitted within thirty (30) calendar <br />days of the end of the month for which the accounting is being made. <br />In addition, the applicant shall submit a report from each entity making replacements <br />using fully consumable effluent; for this plan, that entity is the City of Longmont. The <br />report shall include an accounting of all wastewater plant water effluent controlled by <br />each entity, showing the total volume of water under its control at the various <br />wastewater treatment plants, and the amount committed to each of the recipients of the <br />water. <br />8. All releases of replacement water must be sufficient to cover all out of priority depletions <br />and be made under the direction and/or approval of the water commissioner. The <br />replacement may be aggregated to maximize beneficial use. The water commissioner <br />and/or division engineer shall determine the rate and timing of an aggregated release. <br />,.A.1