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Stephen Buechner, Applegate Group Page 4 <br /> October 20, 2014 <br /> 137(2) and (11), C.R.S, and allows for a total surface area of ground water exposure of <br /> 1.6 acres, a total production of 2,800,000 tons per year of mined product, and a total <br /> washed product of 750,000 tons per year. According to the submittal, the ground <br /> water to be exposed under this plan totals 4.0 acres; therefore, should the <br /> operation include more than 1.6 acres of exposed ground water as allowed by <br /> permit no. 67722-F, application shall be made for a new well permit for the <br /> increased exposed surface within sixty (60) days of this approval. <br /> 5. Water used for washing that ponds and does not infiltrate within 24 hours may require an <br /> amendment to the plan to included additional acres of exposed surface area subject to <br /> evaporation that will require additional replacement under the plan. Field visits by the <br /> Water Commissioner will be made to confirm that 3.4 acres of evaporative surface area <br /> is appropriate for settling ponds and the gravel washing pond under this plan. <br /> 6. Approval of this plan is for the purposes as stated herein. Any additional uses of this <br /> water must first be approved by this office. <br /> 7. All pumping for product washing and dust control shall be measured in compliance with <br /> the Amended Rules Governing the Measurement of Tributary Ground Water Diversions <br /> Located in the Arkansas River Basin. <br /> 8. The Applicant shall provide daily accounting (including, but not limited to diversions, <br /> depletions, replacement sources, and river calls) on a monthly basis. The accounting <br /> must be emailed to the Division Engineer (augmentation.coordinator@state.co.us) and <br /> the Water Commissioner (Joshua.Kasper@state.co.us) with the subject line "Parkdale <br /> Project Gravel Pit SWSP". Said accounting must be received by the loth of the month <br /> following the month being reported. The name, mailing address, and phone number of <br /> the contact person who is responsible for operation and accounting of this plan must be <br /> provided on the accounting forms. <br /> 9. The approval of this substitute water supply plan does not relieve the Applicant and/or <br /> the 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 2 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 from mining and dewatering shall continue until there is no longer an effect on <br /> stream flow. <br /> 10. Dewatering at this site will produce delayed depletions to the stream system. As long as <br /> the pit is continuously dewatered, the water returned to the stream system should be <br /> adequate to offset the depletions. However, once dewatering at the site ceases the <br /> delayed depletions must be addressed. At least three years prior to completion of <br /> dewatering at the Parkdale Pit a plan must be submitted that specifies how the post <br /> pumping dewatering depletions(including refilling of the pit) will be replaced, in time, <br /> place and amount. <br />