2008-02-28_HYDROLOGY - M2000034

• Permit No: M2000034
• IBM Index Class Name: HYDROLOGY
• Doc Date: 2/28/2008
• Doc Name: Substitute water supply plan
• From: DWR
• To: Applegate Group, Inc
• Media Type: D
• Archive: No

DEPARTMENT OF NATURAL RESOURCES
DIVISION OF WATER RESOURCES
February 7, 2008
RECE-VE® - /
Ms. Michelle L. Hatcher FEB 2 8 ZOOS V
Applegate Group, Inc.
Division nt Kec~amation,
1499 West 120th Ave., Suite 200 Mining and Safety
Denver, CO 80233 /
RE: Substitute Water Supply Plan, Loveland Pit, (DRMS# M-2000-034) v
Section 24, T5N, R69W, 6th P.M.
Water Division 1, Water District 4, Larimer County
Dear Ms. Hatcher:
Bill Ritter, Jr.
Governor
Harris D. Sherman
Executive Director
Dick Wolfe, P.E.
Director
This letter is in response to your letter dated December 6, 2007, requesting renewal of
the above referenced substitute water supply plan to cover depletions caused by an existing
gravel mining operation. The required fee of $257 for the renewal of this substitute water supply
plan has been submitted. The original plan was approved on June 26, 2000 and it was most
recently renewed on January 22, 2007.
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 2010 due to a lack of demand in this area. 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 phreatophyte
credit has been applied.
The post-pumping depletions from the Loveland Pit site that occurred through March
2004 have been replaced. According to the lagged depletion analysis previously provided by
your office, lagged depletions from previous mining did not affect the stream 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 WWTP 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 noon-going depletions that need to be replaced, however
according to your letter, mining operations at this site are projected to resume in 2010. As
requested by your letter, this approval is valid until December 31, 2009. Prior to any modifications to
the existing conditions at this site that result in the expansion of exposed ground water beyond the
Office of the State Engineer
1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: [phone] • Fax: [phone]
www.water, state. co.us