2023-08-29_HYDROLOGY - M2015030 - Laserfiche WebLink

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Chavers Mining Resources Substitute Water Supply Plan 2023 Page 5 of 8 August 29, 2023 a. total surface area of the groundwater exposed at the Chavers Mining Resources site must not exceed 18 acres, which results in an annual evaporative loss of 48.68 acre-feet per year and 18.47 acre acre-feet for the period of August 1, 2023 through December 31, 2023; b. the water used for dust control at the Chavers Mining Resources site shall not exceed 1.25 acre-feet per year and 0.52 acre-feet for the period of August 1, 2023 through December 31, 2023; c. the total product mined at the Chavers Mining Resources site shall not exceed 650,000 tons per year and 261,000 tons during the August 1, 2023 through December 31, 2023, which results in 19.12 acre-feet per year of water lost with the mined aggregate and 7.69 acre-feet for the period of August 1, 2023 through December 31, 2023; d. the total concrete production shall not exceed 154,000 cubic yards per year and 68,190 cubic yards during the August 1, 2023 through December 31, 2023, which results in 14.18 acre-feet per year of water used for concrete production and 6.28 acre-feet for the period of August 1, 2023 through December 31, 2023; and e. total consumption at the Chavers Mining Resources site must not exceed these aforementioned amounts unless an amendment is made to this SWSP. 3. The Applicant must replace all out-of-priority depletions resulting from operation under this SWSP, including those lagged depletions that occur to the stream after the expiration date of this SWSP. 4. As part of any renewal of this SWSP, the Applicant must specify the proposed replacement source that will be used to replace all lagged depletions that result from operation under this SWSP, including those that extend beyond the approval period of the SWSP. If the intent is to obtain a short term lease for such future replacement water an executed lease for depletions that extend beyond the SWSP approval period is not required, however the Applicant must demonstrate that there is a reasonable likelihood that such a lease could be obtained. 5. Approval of this SWSP is for the purposes as stated herein. This office must first approve any additional uses for the water. 6. All pumping for dust control shall be measured in a manner acceptable to the Division Engineer. 7. Well permit no. 80121-F was issued for the gravel pit site in accordance with sections 37-90-137(2) and (11), C.R.S. and this permit remains valid. Well permit no. 80120-F was issued in accordance with section 37-90-137(2), C.R.S. for the alluvial well used for the concrete production, and this permit remains valid. 8. The replacement water that is the subject of this SWSP cannot be sold or leased to any other entity. As a condition of subsequent renewals of this SWSP, 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. 9. The Applicant shall provide daily accounting (including, but not limited to diversions, depletions, replacement sources, and river calls) on a monthly basis. The accounting must be uploaded to the CDSS Online Reporting Tool within 30 days of the end of the month for which the accounting applies (https://dwr.state.co.us/Tools/reporting). Instructions for using the tool are available on the Division of Water Resources website on the "Services" —> "Data Et Information" page under the heading of Online Data Submittal. Accounting and reporting procedures are subject to approval and modification by the division engineer. Accounting forms need to identify the WDID number for each structure operating under this SWSP. Additional information regarding accounting requirements can be found in the attached Augmentation Plan Accounting Administration Protocol for Division One. NOTE: Monthly accounting, even during the winter non-irrigation season, is required.