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1t <br />Mr. Andy Rodriguez, P.E. <br />December 22, 2009 <br />Page 4 <br />4. The total surface area of the groundwater exposed at the Parker - Dersham Pit must not <br />exceed 0.56 acres (in the dewatering trenches) during the approval period of this SWSP <br />resulting in an annual evaporative loss of 1.66 acre -feet. <br />5. The annual amount of water used at the operation shall not exceed 1.67 acre -feet for dust <br />control and the total product mined shall not exceed 425,000 tons per year below the <br />groundwater surface resulting in 12.5 acre -feet of water lost with the product. <br />6. Total consumption at the Parker - Dersham Pit must not exceed the aforementioned <br />amounts unless an amendment is made to this plan. <br />7. The applicant shall maintain daily records of all diversions, replacements, and the <br />amount of vaster used for each particular purpose. The applicant shall provide a report of <br />these records to the division engineer and the water commissioners on a monthly basis <br />on a form'.-approved by them. The accounting must be submitted within thirty (30) <br />calendar days of the end of the month for which the accounting is being made. <br />In addition, the applicant shall submit a report from the City of Aurora ( "Aurora "). The <br />report shall include an accounting of all replacement water controlled by Aurora, <br />showing the total volume of water under its control and the amount committed to each of <br />the recipients of the water. <br />8. Since the water leased from the City of Aurora will be used to replace depletions under <br />this SWSP, the SWSP approved for the Baseline Resource Pit and the C.R.S. 37 -92- <br />308(4) SWSP approved for Bestway Concrete, the applicant's accounting for each <br />SWSP must show the total amount of effluent released and the amount associated with <br />each SWSP. <br />9. All diversions shall be measured in a manner acceptable to the division engineer. The <br />Applicant shall install and maintain such measuring devices as required by the division <br />engineer for operation of this SWSP. <br />10. 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 />11. The name, mailing address, and phone number of the contact person who will be <br />responsible for operation and accounting of this plan must be provided on the <br />accounting forms to the division engineer and water commissioner. <br />12. 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 mine 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 <br />losses and lagged depletions. If a lined pond results after reclamation, replacement of <br />lagged depletions shall continue until there is no longer an effect on stream flow. <br />y <br />