EAGLE RIVER FLATS FY 00
30
battery problems we had this season. During
Table III-1-7: Predicted non-flooding peri-
extended dry spells, such as occurred in May
ods using tide gates.
and June, the gensets do not run enough to
Longest Dry Spell *
keep the batteries charged. These units will
Duration
Core
condition the batteries to prevent buildup of
Days†
Year
(Days)
Starts
Ends
sulfate on the plates and the subsequent re-
duction of cranking capacity. The redesign
2001
118
1 May
19 Aug
97
2002
130
1 May
7 Sept
115
of the switch standoffs is already underway,
2003
130
19 May
25 Sept
120
and several small projects for optimizing the
2004
94
1 May
2 Aug
79
deployment of the pump systems are in the
2005
112
1 May
20 Aug
98
2006
102
1 May
10 Aug
87
works. Probably the most pressing need at
2007
102
19 May
29 Aug
102
this time is the procurement of light-weight
aluminum single-wall fuel transfer tanks for
Notes: *Between 1 May and 30 September. Values take into
account the predicted effectiveness of the tide gates during nor-
use in shuttling fuel from the EOD Pad to
mally flooding tides.
fielded systems. We need something light
†Core days are between 15 May and 15 September.
enough to be transported with 900 L of fuel
by the ERA A-Star helicopter. A summary of
proposed development work and equipment
earliest part of the season when conditions
improvements is given in Appendix III-1-B.
tend to be more favorable for remediation. If
Because of the savings realized in the re-
the gates work well for 9.7-m tides during
duced utilization of the commercial helicop-
those seasons, the contiguous non-flooding
ter, some badly needed maintenance will be
period will be much longer. The 2004 season
done on the gensets. All systems will get a
is much like the 1999 season, and if the tide
general maintenance checkup, and Systems
gates work well enough, it could turn into a
2, 4, and 5 will have their rear main seals re-
very good season. Beyond the horizon, in
placed. All units will have block heaters in-
20052007, tides are almost ideal, with no
stalled and will be run at least once a month
flooding tides in June and minor ones in July.
to ensure that the bearings stay lubricated and
These predictions are based on past perfor-
the seals don't dry out. Power to the genset
mance. Unusual climatic events, such as
overwinter staging area is to be installed to
warmer-than-normal temperatures prior to
hook up the block heaters.
flooding tides, unfavorable strong winds dur-
The out years, 20022003, are predicted to
ing flooding events, or heavy rain will ad-
be excellent remediation years, especially if
versely affect our ability to keep the Flats from
the tide gates continue to work as well as they
flooding in the target ponds being treated. If
have in the past (Table III-1-7). A minimum
the project is extended for any reason, the
of 67 contiguous non-flooding core days will
outlook is excellent in these years for further
occur during these years, primarily during the
remediation.
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