2007-12-05_HYDROLOGY - M1977081

• Permit No: M1977081
• IBM Index Class Name: HYDROLOGY
• Doc Date: 12/5/2007
• Doc Name: Substitute water supply plan
• From: OSE
• To: Applegate Group, Inc
• Media Type: D
• Archive: No

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,~ ; (~ S L= STATE OF COLORADO
OFFICE OF THE STATE ENGINEER _
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Division of Water Resources oF'~Oto~
Department of Natural Resources ;Ne ~;
1313 Sherman Street, Room 818
Denver, Colorado 80203
Phone [phone] ~ECE~V~®
FAX [phone] October 23, 2007
http://www.water.state.co.us ~JEC ~ 5 207
uivi,~u;~ ur naaamation,
Mining and Safety
Mr. Richard T. Raines
~~~ Applegate Group, Inc.
1499 West 120t Ave., Suite 200
Denver, Colorado 80234-2728
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RE: Substitute Water Supply Plan, Greeley West Pit, DRMS No. M-77-081
Section 36, T6N, R66W, 6th P.M.
Water Division 1, Water District 3, Weld County
Approval Period: November 1, 2007 through October 31, 2008
Contact Phone Number for Mr. Richard Raines: 303-452-6611
Dear Mr. Raines:
'..
`~avs
Bill Ritter, Jr.
Governor
Harris D. Sherman
Executive Director
(Vacant)
State Engineer
Your letter dated August 27, 2007, requesting renewal of the above referenced substitute
water supply plan to cover depletions caused by an existing gravel mining operation has been
reviewed. The required fee of $257 for the renewal of this substitute water supply plan has been
submitted. The original plan was approved on January 14, 1992 and it was most recently renewed
on November 8, 2006.
The Greeley West Pit is still owned by Flatiron Companies ("Flatiron") and is leased to
Lafarge for mining. In an agreement with Flatiron, the City of Greeley assumed the long-term
augmentation responsibility for the Greeley West Pit. The total exposed pond surface area at this
site is 75.2 acres. According to the information from the previous plan, a total of 45.5 acres of pond
surface was exposed within the Greeley West reclamation permit boundary prior to January 1,1981.
This results in 29.7 acres of exposed surface area requiring augmentation. Thus the anticipated net
depletion for this plan is 86.9 acre-feet per year. Evaporation is the only consumptive use of water at
this site. It is anticipated that mining will resume at this site once the operator, Lafarge West, Inc.,
completes mining activities at the nearby 35'h Avenue Pit site (M-77-036). No dewatering is provided
or sought under this plan.
The Greeley West Pit is located approximately 350 feet from the Cache La Poudre River,
thus depletions were not assumed to be instantaneous and have been lagged back to the Cache La
Poudre River. You have provided a monthly breakdown of the annual depletions totaling 86.9 acre-
feet of evaporative loss. No phreatophyte credit has been applied to this plan.
The proposed sources of replacement water for this pit are 7 shares of the Greeley Canal
No. 3 during the irrigation season and 41.8 acre-feet of fully consumable water provided by the City
of Greeley during the non-irrigation season. The point of replacement for the water provided by the
City of Greeley will be the Greeley Wastewater Treatment Plant. A copy of the lease agreement with
the City of Greeley for 41.8 acre-feet of consumable effluent from Greeley's wastewater plant was
provided to this office with this renewal request and is attached to this letter.