HYDRO24858

• Permit No: M1979195
• IBM Index Class Name: Hydrology
• Doc Date: 8/19/2004
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Environment Inc.
• Media Type: D
• Archive: No

OFFICE OF THE STATE ENGINEER (~
Division of Water Resources
Department of Natural Resources
1313 Sherman Stree4 Room 818
Denver, Colorado 80203
Phone [phone]
FAX [phone]
www.waterstate.co.us
Stevan L. O'Brian
Environment, Inc.
7985 Vance Drive, Suite 205A
Arvada, CO 80003
ti~
RE€~~~~E OF COLORADO
AUG 19 2004 ~ ~w°` `°`°~
Division ~f Minerals and Geology ..0.
~ 1876 3
August 19, 2004 sill ovens
Governor
Russell George
Executive Director
Hal D. Simpson, P.E.
State Engineer
Re: Substitute Water Supply Plan, Road Runners Rest II Pit (M-79-195)
Sections 3 & 4, Township 2 South, Range 67 West, 6th P.M.
Water Division 1, Water District 2, Adams County
Dear Mr. O'Brian:
We have received your request of July 9, 2004 requesting renewal of the above referenced
substitute water supply 1o cover depletions caused by an existing gravel mining operation. The required
fee of $217.00 for the renewal of this substitute supply plan has been submitted. The original supply plan
was approved on September 26, 2003.
The proposed supply plan is to replace depletions caused by evaporation from 19 acres of
water surface exposed after December 31, 1980, the removal of water in product and dust
suppression. According to the information submitted no water surface was exposed prior to January
1, 1981. Consumptive use of water at the property consists of 52.6 acre-feet of evaporation from the
19 acres of exposed pond area, 7.4 acre-feet lost in product (4% moisture of 250,000 tons of raw
material} and 2.0 acre-feet for dust control (for a total of 62 acre-feet annual{y). Depletions from
evaporation and operational losses are assumed to occur instantaneously based on the edge of the
ground water pond being located within 100 feet of the South Platte River. No phreatophyte credit has
been applied to this plan. The monthly depletion and replacement requirements are found on the
attached table. A well permit has been issued for the operation under well permit no. 60313-F.
In January 2004, the Denver Water Board constructed a slurry wall around a series of three
groundwater lakes including the Road Runners Rest II pit. The pit is currently being dewatered,
however, with the inter-connection of the other two lakes the dewatering process has been slow. The
area of evaporation will continue to decrease during the dewatering process. The liner has not yet
been approved in accordance with the State Engineer Guidelines for Lining Criteria for Gravel Pits,
therefore, this plan is approved in the same manner as previous approvals.
The source of replacement water for this plan consists of 65 acre-feet per year of leased fully
consumable replacement water from Denver Water. The lease with Denver Water was effective as of
September 1, 2003 and shall terminate December 31, 2006. Of the 65 acre-feet of lease water from
Denver Water approximately 3 acre-feet will cover transit losses (0.5% per mile for the 9.2 miles from
Metro Wastewater plant outfaA to the Road Runner Rest II pit).
1 hereby approve the proposed substitute water supply plan in accordance with C.R.S. §37-90-
137(11), subject to the following conditions: