Before the FERC Application for New License for the Annex Creek ...

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Should an earthquake with a magnitude of 8 on the Richter scale occur, there
is some question of the upper portion of the dam being safe. The study shows
that at the 1140 elevation, the Project remains safe under the utmost conditions.
Rutherford went on to describe the upper powerhouse and the wye
valve arrangement that permits both powerhouses to operate simultaneously. He
noted that the old lower powerhouse is now used for storage. The new powerhouse
houses a single turbine, which discharges into a tailrace that is connected
to the original culvert system running under Glacier Highway.
Rutherford noted that the Annex Creek Reservoir had a maximum elevation
of 844 feet. The lake tap intake is at 690 and the dam consists of a
20-ft-high timber crib structure. This structure was recently rebuilt and new
drawings are being sent to the FERC to replace the ones they have lost.
Sylvia Burges (Beck) explained that the FERC relicensing requirements
include preparing an environmental exhibit (Exhibit E) and a series of
engineering exhibits and reports. No changes are proposed and no new impacts
are expected. The scope and detail of Exhibit E will be commensurate with the
past level of operation. Much of Exhibit E will be devoted to describing
existing conditions and agencies will be contacted for additional information.
Exhibit E will describe the individual resource areas and the
existing license articles that protect them. Copies of these articles were
distributed.
o General Description - Will be obtained from existing documents.
o Water Use and Quality - Water use and mlnlmum flow are current
ly being studied as part of the DNR water rights amendment
process. Beck hopes to include a completed water rights
amendment, including agreed-upon low flows, in an appendix to
Exhibit E. The protective articles pertaining to water
quality will be described.
o Fish, Wildlife and Botanical Resources - Protective articles
will be described.
o Archaeological Resources - Protected under article 44 in the
recent amendment.
o Recreational Resources - Protected by Articles 32 and 33. In
the past the Project has been exempted because of its remote
location and problems caused by vandalism. Beck will confirm
that the reasons for this exemption are still valid.
Bruce Hoffman (ADEC) noted that on September 8, 1983 an excessive
amount of water was re leased from the Salmon Creek Reservoir, scouring the
streambed and forcing spawning salmon (no species identified) to the side of