HYDRO27677

• Permit No: M2003001
• IBM Index Class Name: Hydrology
• Doc Date: 11/10/2003
• Doc Name: Substitute Water Supply Plan
• From: State Engineer
• To: Leaf Engineering
• Media Type: D
• Archive: No

STATE OF COLORADO
OFFICE OF THE STATE ENGINEER
Division of Water Resources
Department of Natural Resources
1313 Sherman Street, Room 818
Denver, Colorado 80203
Phone [phone]
FAX [phone]
www.wa[ecsta[e.co.us
Mr. Forrest Leaf, P.E.
Leaf Engineering
1401 415` Avenue
Greeley, Co 80634
RECEIVE®
NOV •1 0 2003
Division of Minerals and Geology
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Bill Owens
Governor
Greg E. Walther
Executive Director
Hal D. Simpson, P.E.
State Engineer
Re: "Substitute Water Supply Plan, Nissen Pit (DMG #M-2003-001) ~:
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Section 12, T5N, R65W, 6th P.M.
Water Division 1, Water District 2, Weld County
Dear Mr. Leaf:
This letter is in response to your application of December 19, 2002 for a substitute water
supply plan for Nissen Pit Site. The required fee of $1,343 for the substitute water supply plan has
been submitted.
The anticipated net depletion for this plan is 45.28 acre-feet per year. There are 4.2 acres of
water surface exposed after December 31, 1980 (4 acres silt pond and 0.2 acres of dewatering
trenches to accommodate the construction of a slurry wall). The mined area will be lined with a
slurry wall in late 2003 or early 2004. Mining will not commence until the slurry wall has been
constructed and approved by the Division Engineer. Therefore, if the dewatering stops, no more
than 4.2 acres will be exposed at the site. According to the information submitted, no water surface
was exposed within the reclamation permit boundary prior to January 1, 1981.
You have provided a monthly breakdown of the annual depletions consisting of 11.93 acre-
feet ofevaporative loss, 14.7 acre-feet of water lost with mining of up to 500,000 tons of aggregate
per year, 3.31 acre-feet of losses from water used for dust control and 15.34 acre-feet of water used
in concrete production. The water used in the concrete botching and dust control is proposed to be
withdrawn from the well permit number 5115-F. A well permit application to use an existing well for
the above purpose was submitted to the State Engineer's Office on February 24, 2003 (receipt no.
506240). No phreatophyte credit has been applied to this plan.
The proposed source of replacement water for this pit is 0.6 shares of Lower Latham Ditch
and 2.25 shares of Lower Latham Reservoir. There are 200 outstanding shares in the Lower Latham
Ditch and 156 outstanding shares in the Lower Latham Reservoir. The 0.6 share of ditch water is a
portion of the 2.5 shares leased by Hall-Irwin in the Lower Latham Ditch from the Water Resource,
LLC. The 2.5 shares of ditch water and the 2.25 shares of reservoir water were historically used to
irrigate 120 acres on the Nissen farm. In addition to the ditch water and the reservoir water, well
permit nos. 5115-F and 13255-R were used as supplemental supply water on the 120 acres. The
0.6 share of the Lower Latham Ditch and 2.25 shares of the Lower Latham Reservoirwill be used to
cover the mining depletions attributed to the Nissen mine via direct release to the South Platte River.
The monthly depletions and replacement requirements are found on the attached table.
October 15. 2003