2008-09-16_HYDROLOGY - M2000041

• Permit No: M2000041
• IBM Index Class Name: HYDROLOGY
• Doc Date: 9/16/2008
• Doc Name: Substitute Water Supply Plan Renewal
• From: OSE
• To: Deere & Ault Consultants Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: BMK
• Media Type: D
• Archive: No

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DEPARTMENT OF NATURAL RESOURCES 4+0,5z-
DIVISION OF WATER RESOURCES
Bill Ritter, Jr
Governor

September 10, 2008
Mr. Mark McLean, P.E.
Deere & Ault Consultants Inc.
600 S. Airport Road, Building A, Suite 205
Longmont, CO 80503
Re:
Evans #2 Pit, 2 07-2009 Substitute Water Supply Plan ReKwal
DMG File No.2000-041
SE'/. Section 35, SW'/. Section 36, T20S, R63W, 6th P.M., and
NW'/. Section 1, NE'/. Section 2, T21S, R63W, 6th P.M.
Water Division 2, Water District 14
Expiration date: March 31, 2009
Harris D. Sherman
Executive Director
Dick Wolfe, P.E.
Director
RECEIVED
CEP 16 2008
Dear Mr. McLean: Division of Reclamation,
Mining and Safety
We have reviewed your December 28, 2007 letter requesting renewal of the substitute water
supply plan for 2007 and 2008, in accordance with Senate Bill 89-120 for a sand and gravel pit
previously operated by Stonewall Springs Quarry, LLC/Morley Companies. The required renewal
fees of $257.00 for 2007 and $257.00 for 2008 have been paid. The applicants shall be responsible
for compliance with this plan, but the State Engineer's Office may also pursue the landowner for
eventual compliance.
PLAN OPERATION
This pit did not exist, and no ground water was exposed, prior to January 1, 1981. This plan
proposes to replace depletions to the Arkansas River that result from dry mining aggregate. There
will not be a wash water pond or concrete batch plant.
DEPLETIONS
Previous approvals were for dry mining, with the only water exposure consisting of
dewatering trenches (0.3 acres), a collection area (0.1 acres), and a return trench (0.1 acres). The
0.5 acres of exposed ground water will result in 1.77 acre-feet of evaporative loss (See attached
Table 1). A total of 15.33 acre-feet of water is expected to be consumed by 500,000 tons of
aggregate mining (14.72 acre-feet) and approximately 0.61 acre-feet used for dust suppression (See
attached Table 2). Total operations with evaporation will result in 17.09 acre-feet of consumptive
use. Well permit no. 054064-F (ID 1406561) was obtained for this pit.
A Glover analysis was prepared to calculate lagged stream depletions using a transmissivity
of 100,000 gallons per day per foot, a storage coefficient of 0.2, a distance from well to steam of
2,400 feet and a no flow boundary at 5,000 feet from the Arkansas River. Your stream depletion
analysis is also attached (See attached Table 3) providing a monthly distribution of the steam
depletion. You have calculated total stream depletions to be 16.97 acre-feet for the April 1, 2007
Office of the State Engineer
1313 Sherman Street, Suite'818 - Denver, CO 80203 - Phone: [phone] - Fax: [phone]
www.water.state.co.us