New York /

Jamesville Reservoir

Reservoir in New York · 223 acres · near DeWitt

Jamesville Reservoir has 1 carry-in launch listed as public.

Invasive species

NYS DEC records brittle naiad (latest 2007), curly-leaf pondweed (latest 2002), Eurasian watermilfoil (latest 2001), variable-leaf milfoil (latest 2007) and water chestnut (latest 2021) in this water. Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

NYS DEC · checked October 18, 2026

Past algal blooms

Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2017, 2018 and 2020 to 2026.

state reports compiled by U.S. EPA · checked October 18, 2026

Launches

Wikidata: Q30624872