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<br />EXECUTWE SUMMARY
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<br />The Forest Service could modify the existing Fish Creek Reservoir permit and/or operating plan to
<br />address the environmental consequences of the No Action Alternative. Potential mitigation under
<br />the No Action Alternative could include: .
<br />
<br />. Enlargement of outlet pipe in main dam to help reduce flows through Puppy Dog
<br />Lake channel
<br />
<br />. Erosion protection in the Puppy Dog Lake drainage
<br />
<br />. Repair of channel degradation below Puppy Dog Lake
<br />
<br />. Upgrade of service roads
<br />
<br />. Recommendation for design and implementation of early warning and remote
<br />operational control systems
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<br />At this point in time, mitigation requirements under the No Action Alternative have not been
<br />formally defined by the Forest Service. In the event, however, that the No Action Alternative is
<br />selected by the Forest Supervisor, the nature and extent of potential mitigation would be further
<br />addressed by the Forest Service under the existing permit.
<br />
<br />ALTERNATIVE B - FISH CREEK RESERVOIR EXPANSION (Proposed Action)
<br />
<br />Under Alternative B, the Proposed Action, the Forest Service would issue a new Special Use Permit
<br />to the City to enlarge, use, operate and maintain Fish Creek Reservoir. The proposal includes
<br />raising the height of the existing main dam by 20 feet, reconstructing and raising the saddle dam, and
<br />creating a new spillway channel. The expansion would allow for an additional 2,280 AF of water
<br />storage, from 1,842 AF to approximately 4,122 AF. Fifty acres of shoreline would be inundated,
<br />changing the present size of the reservoir from 90 acres to 140 acres. An early warning system
<br />would be installed in both the main and saddle dams. An electric underground powerline would
<br />be installed to provide power to the early warning and remote off-site operational control system.
<br />Funding for this proposal would be provided by both the City and Mt. Werner, with the City
<br />financing 25 percent and Mt. Werner financing 75 percent of the cost. City Council has passed a
<br />resolution approving the participation of the City in the financing of this proposal, providing that
<br />the Proposed Action is approved and all necessary permits are granted (see Appendix I, City Council
<br />Resolution/Reservoir Financial Plan). The estimated cost of the Proposed Action is $6,000,000 which
<br />equates to a unit cost (cost per AF of water) of approximately $2,600/ AF.
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<br />Environmental Consequences of Alternative B
<br />
<br />The environmental consequences associated with the implementation of Alternative B include the
<br />following:
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<br />. Loss of approximately 15 acres of wetlands.
<br />
<br />. Disturbance and loss of upland meadows, mixed conifer forests, and previously
<br />undisturbed areas.
<br />
<br />. Increased capability to detect and remediate problems with the dams due to the
<br />installation of an early warning monitoring system.
<br />
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<br />September /99.1
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<br />Pag, S-7
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