2009-09-11_PERMIT FILE - M2009062

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DEPARTMENT OF NATURAL RESOURCES DIVISION OF WATER RESOURCES Bill Ritter, Jr. Governor Harris D. Sherman Executive Director Response to Reclamation Permit Application Consideration Dick Wolfe, P.E. Director/State Engineer DATE: September 9, 2009 TO: Eric C. Scott, Environmental Protection Specialist CC: Division 1 Office, District 1 Water Commissioner FROM: Sarah K. Reinsel, E.I.T. c.RE: Pierce North Gravel Pit, File No. M-2009-062 Operator: Weld County Public Works Contact: David Bauer; (970) 304-6496 SE% Section 1, Twp 8 North, Rng 66 West, 6th P.M., Weld County CONDITIONS FOR APPROVAL ® The proposed operation does not anticipate exposing groundwater. Therefore, exposure of ground water must not occur during or after mining operations. ? The proposed operation, will consume ground water by: ? evaporation, ? dust control, ? reclamation, ? water removed in the mined product, ? processing, ? other: Prior to initiation of these uses of ground water, the applicant will need to obtain either a gravel pit or other type of well permit, as applicable. However, prior to obtaining a permit, an approved water supply plan or decreed plan for augmentation is required. ? Prior to approving a well permit, the applicant must conduct a field inspection of the site and document the locations of all wells within 600 feet of the permit area. The applicant must then obtain a waiver of objection from all well owners with wells within 600 feet of the permit area or request a hearing before the State Engineer. ? The proposed operation may have potential impact on existing water rights near the project location. Applicant needs to demonstrate that the proposed project will not alter or impact the historic operation of existing water rights. ® The applicant has indicated plans to use other water for gravel mining and processing operations and dust control purposes at the permit site. The source of water for these uses is County-owned wells designated for dust control or gravel processing use. Applicant needs to document that this water was obtained from a legal source, or diverted in priority under a water right decreed for such industrial use. Applicant should contact the water commissioner for further information. COMMENTS: The applicant has indicated plans to reclaim the Pierce North gravel pit as a stormwater detention and flood control structure upon the conclusion of mining operations. Any stormwater runoff that is intercepted by this structure and is not diverted or captured in priority must infiltrate into the ground or be released to the stream system within 72 hours. This may require a discharge permit from CDPHE- WQCD. Otherwise, the operator will need to make replacements for evaporation. The applicant may contact the State Engineer's Office with any questions ,:- SEP Office of the State Engineer 1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: 303-866-35810 Fax: 303L 66: - 58 9 www.watenstate.co.us