2023-02-24_HYDROLOGY - M2004009 (2)

Home Browse Search

ASCI Turnpike Mining Resources SWSP Page 4 of 7 February 24, 2023 the SWSP will expire on December 31, 2023. Louisville will deliver fully consumable water to Coal Creek, a tributary to Boulder Creek, at Louisville's discharge point (WDID 0602301) on Coal Creek located in the NW '/a of the SE '/a of Section 9, Township 1 South, Range 69 West of the 6th P.M. If replacements are discharged at an alternate point on Boulder Creek, prior notice to and approval by the Water Commissioner is required. A 15% transit loss will be applied to all deliveries as specified in Table 6 (attached) subject to modification as determined by the Division Engineer. The replacement water available after accounting for transit losses from the City is 47 acre-feet and the replacement water available from dewatering is 112.27 acre-feet, therefore total replacement water available is 159.27 acre-feet during this SWSP period. Attached Table 6 summarizes total lagged depletions, the monthly leased water schedule with the City of Louisville, monthly dewatering credits, and net effect on the river. The replacement water in this SWSP is made available through the City of Louisville SWSP (WDID 062538, Plan ID 6159), approved pursuant to 37-92-308(5), C.R.S. which was most recently approved on January 20, 2023 and is the fifth year of that SWSP's approval. In accordance with section 37-92-308(5), C.R.S., the City of Louisville SWSP cannot be renewed or approved for more than five years. Therefore ASCI should be aware that the return flows made available from the City of Louisville SWSP cannot be proposed as a replacement source in the following SWSP approval period. Conditions of Approval I hereby approve the proposed SWSP in accordance with section 37-90-137(11), C.R.S. subject to the following conditions: 1. This SWSP shall be valid for the period of January 1, 2023 through December 31, 2023, unless otherwise revoked, or superseded by decree. If this plan will not be made absolute by a water court action by the plan's expiration date, a renewal request must be submitted to this office with the statutory fee (currently $257), with all necessary leases and other supporting documentation, no later than November 1. 2023. If a renewal request is received after the expiration date of this plan, it may be considered a request for a new SWSP and the $1,593 filing fee will apply. 2. Well Permit 82220-F has been issued for this pit, and this permit remains valid. The permit covers up to 8 acres of exposed surface area and allows for annual water uses of up to 25.81 acre-feet for evaporation losses, water lost with the mined product, and dust control. Actual depletions cannot exceed these amounts and are limited to those uses specifically approved through this SWSP. 3. The total surface area of the groundwater exposed at the Turnpike Mining Resource site must not exceed an area of 4.75 acres (Table A, attached). 4. The annual water used for dust control at the Turnpike Mining Resource site shall not exceed 1.76 acre-feet. 5. Total consumption at the Turnpike Mining Resource site must not exceed these aforementioned amounts unless an amendment is made to this SWSP. 6. Approval of this SWSP is for the purposes as stated herein. This office must first approve any additional uses for the water. Any future additional historical consumptive use credit given (e.g., agricultural water transfer) for this site must consider all previous credits given. 7. All pumping for dust control shall be measured in a manner acceptable to the Division Engineer.