HYDRO30473

• Permit No: M1978327
• IBM Index Class Name: Hydrology
• Doc Date: 10/5/2005
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: DMG
• Media Type: D
• Archive: No

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~-: OS ~~ STATE OF COLORADO
OFFICE OF THE STATE ENGINEER
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Division of Water Resources s~,'
Department of Natural Resources ~ i ~ ~ I
7313 Sherman Street, Room 816 `~OCT O 5 ZOOS * ti * ~
Denver, Colorado 80203 ~' rage ~ ~
Phone [phone]
FAX [phone] Division ~f Minerals and Geology
vnvw.watecstate.co.us September 30, 2005 Go a"'o°~
Russell George
Executive Director
Hal D. Simpson, P.E.
Ms. Kimberly K. Edwards, P.G. state Engineer
Applegate Group, Inc.
1499 West 120 Avenue, Suite 200
Denver, CO 80234-2728
/ /
RE: Substitute Water Supply Plan for Kauffman Pit, M-78-327
NW1/4 Section 21, TSN, R68W, 6th P.M.
Water Division 1, Water District 4, Lorimer County
Approval Period: October 1, 2005 through December 31, 2006
Dear Ms. Edwards:
We have reviewed your letter of August 15, 2005 requesting renewal of the above referenced
substitute water supply plan for a sand and gravel pit. The required fee of $217.00 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 September 8, 2003.
Based on an aerial photo taken in July 2004, the total exposed surface area at this site is
43.7 acres, which consists of two ponds of 25.9 acres and 17.2 acres and 0.6 acres of dewatering
trench. The site had a total of 36.2 acres of water surface exposed prior to January 1, 1981. This
results in 7.5 acres of exposed surface area that require replacement for evaporation losses. The
total annual consumptive use of water at the site is 24.2 acre-feet, which consists of 17.3 acre-feet
of evaporation from the 7.5 acres of exposed pond area, 4.4 acre-feet of water lost in the product
from 150,000 tons of mined material, and 2.5 acre-feet for dust control.
Replacement water for this pit will continue to be made available throughout the yearfrom an
existing lease of 35.0 acre-feet of fully consumable water from the City of Loveland ("Loveland"). A
copy of the lease associated with the mining operation was provided to the State Engineer's Office
with this renewal request. The duration of the lease is from January 1, 2004 through December 31,
2006. A 4 percent transit loss from Green Ridge Glade Reservoir to Kauffman Pit has been applied
to the delivery of the replacement water. In the event that Loveland plans to use C-BT water as a
replacement source, Loveland needs to comply with the Interim Rule issued by the Northern
Colorado Water Conservancy District ("District") in May 2005 regarding the use of Colorado-Big
Thompson ("CBT") Project water in substitute water supply plans. Prior to the use of C-BT Project
water, Loveland is required to notify this office, the division engineer and the water commissioner of
the amount of C-BT Project water dedicated to this plan and provide a copy of the District's approval
letter as required by paragraph I(g) of the District's May, 2005 Interim Rule.
The monthly depletions and replacement requirements are found on the attached Table 3.