2010-07-07_HYDROLOGY - M1999006

• Permit No: M1999006
• IBM Index Class Name: HYDROLOGY
• Doc Date: 7/7/2010
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Cheryl Signs Engineering
• Permit Index Doc Type: Hydrology Report
• Email Name: MAC
• Media Type: D
• Archive: No

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DEPARTMENT OF NATURAL RESOURCES
DIVISION OF WATER RESOURCES
Cheryl Signs, P.E.
Cheryl Signs Engineering
?J 109 East Fourth Avenue
Denver, CO 80203
July 6, 2010
M A (11? _
Bill Ritter, Jr.
Governor
Mike King
Executive Director
Dick Wolfe, P.E.
Director/State Engineer
Re: Kurtz Ranch Resource R,?Spovery Pit, Substitute Water Supply PI (WDID 0502513)
DRMS File No. M-99-006! Well Permit no. 52945-F
Sections 28 and 29, T3N, R67W, 6t' P.M.
Water Division 1, Water District 5, Weld County, Colorado
Approval Period: November 1, 2009 through October 31, 2010 JUL 0 7 LU10
Contact Phone Number for Ms. Cheryl Signs: 303-778-7653 Division vi neciaination,
Mining and Safety
Dear Ms. Signs:
We have reviewed your letters dated October 9, 2009, January 22, 2010, March 31, 2010 and
June 23, 2010 requesting renewal of the above referenced substitute water supply plan ("SWSP") to
cover depletions caused by an existing gravel mining operation. The required fee of $257 for the renewal
of this substitute water supply plan has been submitted (receipt no. 3643119). The original plan was
approved on September 28, 1999 and it was most recently renewed on October 16, 2008.
Plan Operation
This plan seeks to replace depletions resulting from mining operations at the Kurtz Ranch
Resource and Recover pit ("Kurtz", WDID 0503002). The depletions that results from the mining
operations are evaporation, water lost in mined product, and dust suppression. The mine is located in
Weld County in parts of Sections 28 and 29, Township 3 North, Range 67 West of the 6`h P.M. This
SWSP will cover the replacement of the projected depletions of 259.38 acre-feet per year. The
replacement will be made using water stored in two lined pits. The storage water will be from the junior
storage water rights that were decreed in case no. 2001 CW274. The stored water decreed in case no.
2001 CW274 is also used in the Durham Pit SWSP (DRMS M78-056).
Depletions
The anticipated net depletions for this SWSP are 259.38 acre-feet per year. The currently
exposed groundwater at the site totals 19 acres. However, the plan anticipates that a total of 173.1 acres
of water surface will be exposed at the site if dewatering ceases. The evaporation calculations were
based on the entire exposed surface area in the event that the dewatering ceased and this plan will cover
replacements for depletions associated with the 173.1 acres.
You indicated that in addition to the dewatering pumps installed in the pit for dewatering, the
Applicant intends to use well no. 2489-FR, for dewatering purposes at the site. This well was decreed by
the Division 1 Water Court as Kurtz Well No. 11 in Case no. W-3873, for 1.84 cfs and irrigation purposes
of 50 acres in the NW1/4 of Section 28, Township 3 North, Range 67 West of the 6th P.M. The well is
located on the Kurtz site DRMS permitted boundary and the well has not been used for irrigation since
mining started at the Kurtz site. Note that if well no. 2489-FR is being used for dewatering at the Kurtz site
a new well permit must be obtained for dewatering purposes in accordance with § 37-90-137(2), C.R.S.
r Office of the State Engineer
1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: [phone] • Fax: [phone]
www.water.state.co.us