2009-03-19_PERMIT FILE - M2008080 ‎(2)‎

• Permit No: M2008080
• IBM Index Class Name: PERMIT FILE
• Doc Date: 3/19/2009
• Doc Name: Adequacy Review Response- 03
• From: J&T Consulting, Inc.
• To: DRMS
• Email Name: MAC
• Media Type: D
• Archive: No

M-2008-080 - Journey Ventures, LLC - Joumey Ventures Pit - 112 (c) Application Adequacy Review Response - 03
March 19, 2009
-2-
this location. Monthly evaporation percentages are established by guidelines set by the State
Engineer's Office. To determine precipitation, data from the National Weather Service for
Greeley, CO (053553) (1967-2007) was used. The long-term average precipitation at the
Journey Ventures Pit is estimated at 14.04 inches. Effective precipitation is calculated as 70% of
the total precipitation. The net evaporation is the difference between gross annual evaporation
and effective precipitation. The resulting net evaporation is 2.93 feet.
The maximum evaporative loss from the 0.38 acres is 1.11 ac-ft.
Operational Loss
The average annual production from the Journey Ventures Pit site is estimated at 250,000 tons.
Using 4% moisture content, the total associated consumptive use for water retained in the
material mined is 7.4 ac-ft.
Dust control use is 10,000 gal/day, 6 days/week, 4 weeks/month for 10 months of the year. This
equates to 7.4 ac-ft.
Maximum annual operational loss is estimated to be 14.8 ac-ft for Phases 3-11.
Consumptive Use
The maximum annual consumptive use at this site during the mining operation is estimated to
be 15.91 ac-ft for Phases 3-11.
Replacement Water
The replacement of consumptive uses at the site is will be accounted for in a substitute water
supply plan (SWSP) approved by the State Engineer. The SWSP will be obtained prior to any
mining activities occurring that expose groundwater.
Estimated Volume to Fill Reclaimed Reservoir
The reclaimed reservoir volume is estimated to be approximately 2,000 acre-feet.
Anticipated Source of Water to Fill Reclaimed Reservoir
There are several potential sources to fill the reclaimed reservoir. While Journey Ventures, LLC
does not own shares in the adjacent ditch or company it could be a potential source. Journey
Ventures, LLC has not approached the ditch company about shares or a carriage agreement.
There are numerous other municipalities, water districts, and water providers that exist in the
area which Journey Ventures, LLC has discussed the potential storage volume with that could
provide a source of water to fill the reservoir through diversions, well fields, or pipelines that
could be constructed from those sources to this site. Journey Ventures, LLC will continue to
pursue these potential users of the reclaimed water storage as the potential users have needs
for storage of augmentation water and re-capturing wholly consumable supplies/effluent to aid in
exchanging water in the South Platte River and Cache La Poudre River corridors.
V m 1400 W 122 "d Avenue - Suite 120 • Westminster CO 80234 • Ph: 303-457-0735 • Fax: [phone]