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Jeffrey A. Clark <br /> January 13, 2021 <br /> Page 4 of 6 <br /> the gravel pit in accordance with 937-90-137(2) and (11), C.R.S. WDID 1205065 is assigned to <br /> the gravel pit structure and should be included in all reporting. <br /> 3. The total surface area of the groundwater exposed at the Parkdale Project site must not <br /> exceed 5.0 acres during this SWSP period, which will result in a net annual evaporative loss <br /> of 15.51 acre-feet. <br /> 4. The annual amount of water used at the operation shall not exceed 22.41 acre-feet for dust <br /> control and 8.90 acre-feet for water lost in the mined product. The washed mined product <br /> will be charged a depletion of 2 percent by weight of the material, and the unwashed <br /> product (mined above the water table) will be charged a depletion of 0 percent by weight of <br /> the material. <br /> 5. Total consumption at the Parkdale Project site must not exceed the aforementioned <br /> amounts unless the Applicant obtains a new SWSP for such additional amounts. <br /> 6. Approval of this SWSP is for the purposes as stated herein. Any additional uses of <br /> groundwater must first be included in a new SWSP approved by this office. <br /> 7. Any water used for aggregate washing ponds that does not infiltrate within 24 hours may <br /> require submittal of a new SWSP to include additional areas of exposed water surface <br /> subject to evaporation, and to include additional replacement supplies. Field visits by the <br /> Water Commissioner may be made to confirm that the maximum surface area of exposed <br /> ground water allowed by this plan (5.0 acres) is not exceeded. <br /> 8. All pumping for product washing and dust control shall be measured in compliance with the <br /> Amended Rules Governing the Measurement of Tributary Ground Water Diversions Located in <br /> the Arkansas River Basin. <br /> 9. The Applicant shall provide daily accounting (including, but not limited to pumping, stream <br /> depletions, and replacement water deliveries) on a monthly basis. The accounting must be <br /> submitted to the Division Engineer via the online submittal tool. Please contact Joseph <br /> Regur at Joseph.Regur@state.co.us to set up an account with the subject line "Parkdale <br /> Project Gravel Pit SWSP". Accounting must be submitted within 10 days after the end of the <br /> month for which the accounting applies. Accounting and reporting procedures are subject to <br /> approval and modification by the Division Engineer. <br /> 10. Approval of this SWSP does not relieve the Applicant and/or the landowner of the <br /> requirement to obtain a Water Court decree approving a permanent plan for augmentation <br /> or mitigation to ensure the permanent replacement of all depletions, including long-term <br /> evaporation losses and lagged depletions after mining operations have ceased. If <br /> reclamation of the mine site will produce a permanent water surface exposing groundwater <br /> to evaporation, an application for a plan for augmentation must be filed with the Division 2 <br /> Water Court at least three (3) years prior to the completion of mining, to include, but not be <br /> limited to, long-term evaporation losses and lagged depletions. If a lined pond results after <br /> reclamation, replacement of lagged depletions from mining and dewatering shall continue <br /> until there is no longer an effect on stream flow. <br />