HYDRO22914

• Permit No: M1999098
• IBM Index Class Name: Hydrology
• Doc Date: 4/25/2005
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Applegate Group Inc.
• Media Type: D
• Archive: No

Mr, Donald E. Frick
April 22, 2005
The total depletions for the sites are shown in the following table:
TABLE B -DEPLETIONS
Page 2
Total lagged Total
depletions Lagged
from on-site Depletion(-)
Site Evaporation Lost in
Product Dust
Control Concrete Total consumptive or
accretion(+)
Name (ac-ft) (ac-ft) (ac-ft) gatching (ac-ft) uses for this from all
approval
period Previous
'
(ac-ft) year
s
o erations
F-Street 90.42 0 2.00 0.00 92.42 77.89 -115.39
Pit
Loloff Pit 24.24 0 0 0.00 24.24 21.70 -21.71
22'39 7.31 20.00 73.25 68.25 -27.56
Farms Pit (00 000
tons
East 8`h 4.06
Street Pit 11.72 (138,000 1.38 8.45 25,61 22.58 85.39
tons)
Total 148.77 27.61 10.69 28.45 215.52 190.42 79.27
The source of .replacement water for this combined plan for the months of April through
September 2005 will be from 240 Boyd & Freeman Ditch Company shares and 11 shares in the Whitney
Ditch Company. The 240 Boyd & Freeman Ditch Company shares were quantified in the previous
substitute water supply plan for the F-Street Pit. The 240 shares represent an estimated 99.28 acre-feet
of consumptive use credit annually based on the dry-year average analysis. However for this plan a
consumptive use credit of 97.31 acre-feet was applied based on the 2004 delivery of the 240 Boyd &
Freeman Ditch Company shares. The 11 shares of Whitney Ditch Company were quantified in the
original substitute supply plan for W.W. Farms Pit and represent an estimated 161.37 acre-feet of
consumptive use credit annually based on the dry-year average analysis. The return flow obligations
from the Boyd & Freeman Ditch shares and Whitney Ditch Company shares will be maintained.
Fully consumable effluent from the City of Westminster will be used to replace out-of-priority
depletions during January through March and November and December 2005. For the purposes of this
combined plan, a transit loss of 15% was charged for the delivery of the City of Westminster water from
the outfall of the Metro Wastewater Treatment Plant to the confluence of the Poudre and South Platte
Rivers. A 1999 lease with the City of Westminster was provided to this office as part of the
documentation process for the previous combined plan. The remaining depletions after the City of
Westminster lease will be supplied by excess credits during the summer months from Aggregate's
operations on the Saint Vrain River and the South Platte River.. These supplies include excess
consumptive use credits in the South Flat Ditch and the Coffin & Davis Ditch. The ditch right and return
flow obligations will be maintained by substitute water supply plans for the Neighbor Pif (M-84-164) and
Distel Pit (M-89-029AM). To the extent available, excess supplies during the summer months from