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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) Batching (ac-ft) uses for this from all approval period previous ' (ac-ft) year s o erations F-Street g0 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 39 x 7 31 20 00 73.25 68.25 -27.56 Farms Pit . (800,000 . . tons East 8`" Street Pit 11.72 (1 8 000 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 Vrairt 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 Pit (M-84-164} and Distel Pit (M-89-029AM). To the extent available, excess supplies during the summer months from