GENERAL30387

• Permit No: M1979097
• IBM Index Class Name: General Documents
• Doc Date: 9/27/2004
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Applegate Group Inc.
• Media Type: D
• Archive: No

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STATE OF
OFFICE OF THE STATE ENGINEER
Division of Water Resources
Department of Natural Resources
1313 Sherman Street, Room 818
Denver, Colorado 80203
Phone [phone]
FAX [phone]
wvvw.watecstate.co. us
Mr. Richard T. Raines
Applegate Group, Inc.
1499 West 120' Ave., Suite 200
Denver. Colorado 80234-2728
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SEP 2 7 2004 y= ~
plyision ~f Mieerels and Geolog , s,~;
September 22, 2004 sill ow-ens
Governor
Russell George
Executive Director
Hal D. Simpson, P.E.
State Engineer
RE: East Rigden Pit Substitute Water Supply Plan, M-79-097
Section 28, T7N, R68W, 6th P.M.
Water Division 1, Water District 3, Larimer County
Dear Mr. Raines:
We have received your letter of August 26, 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 approved on January 9, 1992, and was most recently renewed on May 23, 2003.
Mining has been completed at the East Rigden site and construction of a clay reservoir liner
~. is proceeding in the southeast portion of the property. In addition, mined material is no longer
conveyed from the adjacent Resource Recovery Farm site to be processed at the East Ridgen
facility.
The exposed acreage has decreased to 23.2 acres, which includes 0.3 acres of dewatering
trench. According to previously submitted information, 25 acres of water surface was exposed within
the reclamation permit boundary prior to January 1, 1981. Since the current exposed area is less
than the area exposed prior to January 1, 1981, there is no longer an evaporation augmentation
requirement at this site.
The anticipated consumptive use at this site consists of 1 acre-footfordust suppression and
0.08 acre-feet for the office/asphalt production plant septic system. The replacement requirement
forthis approval period is 4.8.acre-feet, which accounts forthe lagged depletionsfrom consumptive
used during this plan period and lagged depletions accruing to the river from previous operations.
The proposed sources of replacement water for this pit is one Box Elder Ditch share which
will be recharged into a 7.9-acre pond located on the property. The one Box Elder Ditch share is part
of the 8 shares that were historically used to irrigate 222.7 acres of com, alfalfa and pasture grass at
the East Rigden site, which have been taken out of the production. The historic consumptive used of
the 8 shares was determined to be approximately 327.3 acre-feet. The pro-rata consumptive use for
one share is 40.9 acre-feet.
A monthly breakdown of depletions and replacements is shown on the attached Table. The
Table indicates that although the total consumptive use from the mining operation is currently 1.08
acre-feet, this plan will make replacements for 4.8 acre-feet to account for lagged depletions from
previous consumption at the site. Well permit no. 53509-F was obtained for the gravel pit in
accordance with §37-90-137(2) and (11), C.R.S.