HYDRO24716

• Permit No: M2000034
• IBM Index Class Name: Hydrology
• Doc Date: 11/1/2004
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Applegate Group Inc.
• Media Type: D
• Archive: No

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STATE OF COLORADO
OFFICE OF THE STATE ENGINEER
Division of Water Resources
DeparVnent of Na[ural Resources
1313 Sherman Sveet, Room 818
Denver, Colorado 80203
Phone [phone]
FAX [phone]
October 13, 2004
wwvewa[erstate.w.us - -
Mr. Richard T. Raines " ~~
Applegate Grou~, Inc. ~ ~;~J1,~ Q I ~~i~¢ ,~
1499 Wesf 120 Ave., Suite 200
Denver, CO 80233
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RE: Substitute Water Supply Plan, Loveland Pit, (DMG# M-2000-034)
Section 24, TSN, R69W, 6th P.M.
Water Division 1, Water District 4, Larimer County
Dear Mr. Raines:
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Bill Owens
Governor
Russell George
Executlve Direttor
Hal D. Simpson, P.E.
Brate Engineer
This letter is in response to your letters dated May 6, 2002 and July 7, 2004, requesting
renewal of the above referenced substitute water supply plan to cover depletions caused by an
existing gravel mining operation. The required fee of $217 for the renewal of this substitute water
supply plan has been submitted. The original plan was approv(aii on June 26, 2000.
According to the information submitted, there has been no mining activity at the Loveland
Pit site since June 2002 and Lafarge West, Inc. does not intend to resume mining operations
until 2006. Currently the amount of exposed surface area at this site is less than the amount of
pre-1981 exposed surface area. In a letter dated November 20, 2002, from this office to Mr.
Michael J. Hart, the pre-1981 exposed area is identified as being limited to 6.5 acres. Thus the
proposed operation will not expose any additional water surface acreage within the reclamation
permit boundary that was not already exposed prior to January 1, 1981. Accordingly, no
replacements are proposed to be made for evaporation. No phl•eatophyte credit has been
applied.
The post-pumping depletions from the Loveland Pit site that occurred through March
2004 have been replaced. The lagged depletion analysis that you provided indicated that lagged
depletions did not occur after March 2004. The total volume required for replacement to account
for post-pumping depletions was 1.9 acre-feet. Replacement water required included a 2.0
percent transit loss from Loveland W WTP to the Loveland Pit site. The source of replacement
water for this pit during 2003 was a lease of 3.0 acre-feet of fully consumable water from the City
of Loveland. The release of replacement water was made under the direction of the water
commissioner. In addition, a well permit was obtained for the gravel pit in accordance with §37-
90-137(2) and (11), C.R.S., permit no. 54292-F.
In accordance with C.R.S. § 37-90-137(11), the above referenced out-of-priority
depletions have been replaced. Presently, there are no on-going depletions that need to be
replaced, however it is our understanding that the applicant proposes to resume mining
operations at this site in 2006. Prior to any modifications to the existing conditions at this site
that result in out-of-priority depletions, the applicant is required to request and obtain approval of
a substitute water supply plan for the proposed modifications.