HYDRO20465 - Laserfiche WebLink

Home Browse Search

Mr. Andrew Rodriguez December 21, 2004 Page 2 The proposed source of replacement water for this pit is 56.1 acre-feet of fully consumable effluent leased from the City of Thomton. The Thomton water will be released from the Metro Wastewater Treatment plant, which is located approximately 35 mile upstream of the operation. Of the 56.1 acre-feet of lease water from the City of Thomton, approximately 8.1 acre- feetwill cover transit losses (17.5% total based on 0.5% per mile for the 35 miles from the Metro wastewater treatment plant to the Heit Sand and Gravel Mine). The amount of City of Thomton replacement water that reaches the Heit Sand and Gravel Mine is 48.0 acre-feet. The monthly depletions and replacement requirements are found on the attached Table 3. As required by Section 8 of Senate Bill 89-120, this substitute water supply plan has been provided to an outside consultant for review. I hereby approve the proposed substitute water supply plan in accordance with §37-90-137(11), C.R.S., subject to the following conditions: 1. This plan approval shall be valid through March 31, 2006, unless otherwise revoked or modified. 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 statutoryfee (currently $217) by February 1, 2006. 2. A well permit must be obtained for the gravel pit in accordance with §37-90-137(2) and (11), C.R.S. prior to the exposure or use of groundwater. A well permit must also be obtained for well no. 20136-R in accordance with §37-90-137(2), C.R.S. to change the use of the well to dust suppression and concrete batching prior to commencing such uses. Any application will be evaluated subsequent to approval of this plan. The provisions of §37-90-137(2) C.R.S. prohibit-the issuance of a permit for a well to be located within 600 feet of any existing well, unless the State Engineer finds that circumstances so warrant after a hearing held in accordance with the procedural rules in 2CCR402-5. This hearing may be waived if you are able to obtain statements from the owners of all wells within 600 feet, verifying that they have no objection to your use of the proposed well. Should a new well permit be denied for reasons of 600 foot spacing, or any other legitimate reason, approval of this substitute supply plan will be cancelled. 3. The losses associated with this mining operation must not exceed a total of 46.3 acre-feet for the duration of this permit approval. These losses include 14.2 acre- feet of evaporation from the proposed exposure of 4.8 acres of groundwater, 14.7 acre-feet of water lost in 500,000 tons of mined aggregate, 15.5 acre-feet consumed in batching of 150,000 cubic yards of concrete and 1.9 acre-feet used for dust suppression. Should the annual losses at the site exceed 4.31 acre-feet prior to the expiration of this plan, an amendment will need to be filed. 4. A copy of the signed City of Thomton lease shall be submitted to the Division Engineer and State Engineer's Office prior to exposing ground water at the site. 5. Approval of this plan is for the purposes as stated herein. Any additional uses of this water must first be approved by this office.