2008-12-17_HYDROLOGY - M1978327

• Permit No: M1978327
• IBM Index Class Name: HYDROLOGY
• Doc Date: 12/17/2008
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Applegate Group, Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: ECS
• Media Type: D
• Archive: No

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DEPARTMENT OF NATURAL RESOURCES
DIVISION OF WATER RESOURCES
December 11, 2008
Mr. Richard Raines
Applegate Group, Inc.
1499 West 120th Avenue, Suite 200
Denver, CO 80234-2728
RE: Substitute Water Supply Plan fr Kauffman Pit (WDID 0402530)
DRMS N . M-78-327
NW1/4 Section 21, T5N, R68W, 6th P.M.
Water Division 1, Water District 4, Larimer County
Approval Period: January 1, 2009 through December 31, 2009
Contact Phone Number for Mr. Richard Raines: 303-452-6611
Dear Mr. Raines:
Bill Ritter, Jr.
Governor
Harris D. Sherman
Executive Director
Dick Wolfe, P.E.
Director
DEC Division oi
lft"ng and
We have reviewed your letter of November 10, 2008 requesting renewal of the above referenced
substitute water supply plan for a sand and gravel pit. The required fee of $257.00 for the renewal of this
substitute water supply plan has been submitted. The original substitute water supply plan was approved
on April 6, 1992 and it was most recently approved on December 14, 2006.
SWSP Operations
The mine is located in Larimer County in the NE1 /4 of Section 20, Township 5 North, Range 68
West of the 6th P.M., and has well permit no. 42901-F (WDID 0403009). The only consumptive uses at
this site will be from evaporation of exposed area and dust control. Reclamation is anticipated to begin
in January 2011. The replacement water will be supplied by a lease with the City of Loveland.
Depletions
Based on the information from your letter of November 10, 2008, the total exposed surface area
at this site was 44.4 acres of which 36.2 acres of water surface was exposed prior to January 1, 1981.
Since that time approximately 1.9 acres have been backfilled, leaving a total of 42.5 acres exposed.
This results in 6.3 acres of exposed surface area that require replacement for evaporation losses. The
total annual consumptive use of water at the site is 17.00 acre-feet, which consists of 14.5 acre-feet of
evaporation from the 6.3 acres of exposed pond area and 2.5 acre-feet for dust control. The mining
operation has continuously dewatered directly back to the Big Thompson River since 1990. Due to the
long period of continuous dewatering, you have assumed the dewatering at this site has reached a
state of equilibrium with the Big Thompson River.
Note, that due to a change in administration of evaporation from ground water exposed to the
atmosphere prior to 1981, pre-1981 credits will no longer be allowed for gravel pits which exposed ground
water to the atmosphere prior to 1981 and were actively mined on or after January 1, 1981. Accordingly,
Office of the State Engineer ?r
1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: [phone] • Fax: [phone]
www.water.state.co.us