HYDRO27171

• Permit No: M1987049
• IBM Index Class Name: Hydrology
• Doc Date: 8/27/2004
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: JR Engineering
• Media Type: D
• Archive: No

1.:
b.~ I<
L,~, p
STATE OF COLORADO
OFFICE OF THE STATE ENGINEER (/
Division of Water Resources
Department of Natural Resources
1313 Sherman S[reet, Room 818
Denver, Colorado 80203
Phone [phone]
FAX [phone]
www.watecstate.co.us
August 26, 2004
Tom Hatton
JR Engineering
6020 Greenwood Plaza Boulevard
Greenwood Village, CO 80111
>/
Re: Substitute Water Supply Plan, Bromley Lakes Pit (M-87-049)
Sections 12, Township 1 Scuth, Range 67 West. 6th P.M.
Water Division 1, Water District 2, Adams County
Deal Mr. Hatton:
pF' COQ
~ti $~
y~
+ ~ r
• ~
~ X876 ~
Bill Owens
Governor
Russell George
Executive Director
Hal D. Simpson, P.E.
State Engineer
RECEIVED
~UG 2 7 2004
Division ~f Minerals and Geology
We have received your request of August 9, 2004 requesting approval of the above referenced
substitute water supply to cover depletions caused by an existing gravel mining operation. The required
fee of $217.00 for this substitute supply plan has been submitted.
The proposed supply plan is to replace depletions caused by evaporation from up to 48 acres
of water surface exposed after December 31, 1980 and the removal of water in product. According to
the information submitted no water surface was exposed prior to January 1, 1981. The City of
Brighton will line the pit with a slurry wall by the end of 2004. Once the pit is lined the area of
evaporation is predicted to decrease. The plan estimates that the area of evaporation will be 48 acres
for August through December and will then decrease to 10 acres for the remainder of the plan period.
Consumptive use of water at the property consists of 69.4 acre-feet of evaporation from the
maximum 48 acres of exposed pond area and 23.6 acre-feet lost in product (4% moisture of 800,000
tons of raw material). No phreatophyte credit has been applied to this plan. The monthly lagged
depletion and replacement requirements are found on the attached table. Since the depletions have
not yet reached steady state conditions the lagged depletions total 91.8 acre-feet.
The source of replacement water for this plan consists of 54.8 acre-feet per year of leased fully
consumable replacement water from Consolidated Mutual Water Company ("Consolidated")and 39
shares of Fulton Ditch. Of the 54.8 acre-feet of lease water from Consolidated approximately 3.3 acre-
feetwill cover transit losses (0.5% per mile for the 13 miles from Metro Wastewater plant outfall to the
Bromley Lakes Pit). The 39 shares of the Fulton Ditch were historically used to irrigate 77 acres of
alfalfa and grass. Assuming a 20% ditch loss and a 65% irrigation efficiency, the dry-year
consumptive use of the 39 shares was determined to be 68 acre-feet. A portion of the Fulton water
will be recharged back to the stream through the pit and a portion will be delivered directly back to the
river.
I hereby approve the proposed substitute water supply plan in accordance with C.R.S. §37-90-
137(11), subject to the following conditions:
1. This plan shall be valid through July 31, 2005 unless otherwise revoked or modified. If this
plan will not be made absolute by a water court action by the plan's expiration date, a renewal