HYDRO21129

• Permit No: M2000158
• IBM Index Class Name: Hydrology
• Doc Date: 1/22/2004
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Leonard Rice Engineers Inc.
• Media Type: D
• Archive: No

Re: S&H Mine Gravel Pit, Substitute Water Suooly Plan
DMG File No. M-2000-1-5_8
Section 35, T4N, R67W, 6 P. M.
Water Division 1, Water District 2
Dear Jennifer L. Ashworth:
/~~4~`', ~'"
w
a +
'~ r8'l° s
Bilf Owens
Governor
Greg E. Walther
Executive Director
Hal D. Simpson, P.E.
State Engineer
We have received your letter of November 25, 2003, requesting renewal of the above
referenced substitute water supply plan to cover depletions caused by a gravel mining operation.
The required fee of $217.00 for the renewal of this substitute supply plan has been submitted.
The original supply plan was approved on April 30, 2001 and a renewal was approved November
26, 2002.
The renewal anticipated that mining would begin in the spring of 2003, however, it did not
begin until September due to unforeseen delays. This plan describes the actual uses for 2003
and the proposed uses for 2004. According to the information submitted, no water surface was
exposed within the permit boundary prior to January 1,1981.
Mining at the site may be done under wet conditions with a dredge directly exposing
groundwater or under dry conditions by dewatering the pit area. The area of exposed
groundwater specified in the plan assumes that the area will be mined under wet conditions.
The actual consumptive use for 2003 consisted of 0.49 acre-feet of evaporative loss
(from September through December) from 0.61 acres of exposed lake surface and 0.34 acre-
feet of water lost in product {4% moisture of 11,400 tons of raw material}. The anticipated
consumptive use for 2004 consisted of 12.27 acre-feet of evaporative loss from 0.61 acres of
lake surface exposed from January through April and 5 acres of lake surface exposed from May
through December, 3.24 acre-feet of water lost in product (4% moisture of 110,000 tons of raw
material) and 1 acre-foot of water used for dust control (total 16.51 acre-feet)
The S&H Mine Gravel Pit is located approximately 2,900 feet from the South Platte River.
The Applicant has provided a monthly schedule of lagged actual depletions to the river system,
together with a schedule of replacement requirements for 2003 and 2004. While this replacement
amount matches calculated river depletions during 2003 and 2004, the deficit between pit and
river depletions will need to be accounted for in future years.
RECEIVED f
~a", ~ z 200 - STATE OF COLORADO
OFFICE OF THE STATE ENGINEER / oe cow
Division of Wa[er Resources eF' R~
Department of Nawral Resources ~ ,",
1313 Sherman Street, Room 8"18
Denver, Colorado 80203
Phone [phone] January 14, 2004
FAX [phone]
www.watersta[e.co. us
Jennifer L. Ashworth
Leonard Rice Engineers, Inc.t~
2000 Clay Street, Suite 300
Denver, Colorado 80211-5119