2009-12-23_HYDROLOGY - M2006003 - Laserfiche WebLink

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Mr. Andy Rodriguez, P.E. December 22, 2009 Page 3 The applicant has entered into a long term lease agreement with the City of Aurora ( "Aurora ") whereby Aurora will deliver up to 49 acre -feet of fully consumable water to the South Platte River at the confluence of the South Platte River & Sand Creek, just north of Metro Wastewater Treatment Plant. The confluence is located approximately 20 miles upstream of the Baseline Resource Pit. A 0.25 percent per mile transit loss for November through March (5.0 percent overall loss) and a 0.5 percent per mile transit loss for April through October (10.0 percent overall loss) has been accounted for in the replacement schedule. During 2010, 5.65 acre -feet from the Aurora lease will be used to cover the remaining depletions after the Laramie -Fox Hills well pumping. In addition to replacing depletions resulting from this mining operation, the City of Aurora effluent will also be used by the Applicant to replace 20 acre -feet of depletions resulting from operations at the Baseline Resource site in accordance with the C.R.S. 37 -90- 137(11) SWSP approved for Hall -Irwin and 23.3 acre -feet of depletions resulting from operation of the Bestway Concrete Well No. 1 (permit no. 67418 -F), in accordance with the C.R.S. 37 -92- 308(4) SWSP approved for Bestway Concrete. Since the City of Aurora effluent is being used as a replacement source for the three plans, the applicant's accounting for each SWSP must specify the total amount of effluent released and the amount associated with each SWSP. A monthly breakdown of depletions and replacements is shown in attached Table 4. Conditions of Approval I approve the proposed substitute water supply plan 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shall be valid for the period of January 1, 2010 through December. 31, 2010, unless otherwise revoked, modified, or superceded by decree.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) by November 15, 2010. ` 2. Well permit no. 67585 -F was obtained for the current use. and exposed pond surface area of the gravel pit pond in accordance with §37 -90- 137(2) and (11), C.R.S. 3. As required by the condition no. 3 of the previous SWSP approval, the Applicant was required to obtain a new permit to operate well no. 66961 -F for dust suppression purposes approved under this SWSP. The Applicant is hereby notified that a permit application must be _submitted within 30 days of the date of approval of this letter or demonstrate that water for dust control at the site is obtained from a different source. Any application will be evaluated subsequent to approval of this plan. The provisions of §37 -90- 137(2) 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 in accordance with the procedural rules in 2CCR402 -5. The hearing will 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 SWSP will be canceled.