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scale: full pond = 100 ft; full pond corresponds to 935.0 ft (AMSL, NGVD 29 datum)"],"methodology":"Daily average lake levels reported by Duke Energy. Values use the operator’s relative full-pond scale: 100 ft corresponds to 935.0 ft (AMSL, NGVD 29 datum). A reading of 98 ft means two feet below full pond; it does not mean 98% full or 98 feet above sea level. No storage percentage is inferred. Targets and forecasts are excluded, missing values remain missing, and Water Around adds no interpolation. The latest day may be incomplete. These are water-quantity records, not drinking-water safety tests."}