| WOF | Weir or Flume measurement of flow rate x time |
| OTH | crest of spillway = 12.40 af - supplemented with staff gauges (1996) |
| OTH | Crest of Spillway/Staff Guages (2018) |
| OTH | Estimate based on visual observat (2022) |
| OTH | Estimate based on visual observation (2024) |
| OTH | None (2021) |
| OTH | Visual estimate based on known volumes (2020) |
| OTH | Visual estimate from prior years (2023) |