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Historic Water Levels
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Historic Water Levels

Lowest Recorded
Level (ft.)
Avg. Level (ft.)
Month
1988-
1997
1999
(drought year)
2002
(drought year)
1987-
2008
January
-15.2
-21.2
-20.9
-6.9
February
-15.5
-20.5
-23.4
-5.3
March
-13.4
-20.9
-24.7
-4.2
April
-5.5
-17.4
-24.3
-3.1
May
-3.4
-19.0
-23.8
-2.8
June
-2.8
-23.0
-27.0
-3.4
July
-4.7
-26.0
-29.3
-4.6
August
-6.7
-28.7
-31.4
-6.0
September
-8.2
-29.2
-33.7
-7.2
October
-10.8
-18.2
-34.1*
-7.9
November
-12.8
-17.9
-31.6
-8.7
December
-15.3
-14.0
-22.6
-8.3

*lowest level ever recorded

"-5.0" means "5.0 feet below spillway" or "the water level in Carvins Cove was 5.0 feet below the reservoir's maximum capacity."