Lake Level, Flume Depth, Air & Water Temperature AttachmentSize Lake Massapoag Level, Flume Depth and Temperature 2024 YTD53.72 KB Lake Massapoag Level and Flume Depth and Temp 2023 58.86 KB Lake Massapoag Level, Flume Depth, Air and Water Temperature, 2022 YTD 439.37 KB Median Lake Massapoag Water Levels May-October 1998-2021 490.13 KB 2016 Lake Level Summary2.99 KB 2015 Lake Level Summary3.82 KB