Beach · Middlesex County · CT
Is TOWN BEACH (OLD SAYBROOK) safe to swim?
No advisory or algae bloom reported for this water today.
Updated July 19, 2026 · Connecticut beach program (EPA BEACON)
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Know before you get in at TOWN BEACH (OLD SAYBROOK).
Get an alert the day a bacteria or algae advisory goes up.
What's in the water at TOWN BEACH (OLD SAYBROOK) right now
As of July 19, 2026, TOWN BEACH (OLD SAYBROOK) in Middlesex County, Connecticut is clear to swim. Blue-green algae are not currently monitored at this water. No fecal-bacteria advisory is posted (state beach program). Rainfall over the past week totaled 0.3 in, which can wash bacteria and nutrients into the water.
Blue-green algae at TOWN BEACH (OLD SAYBROOK)
TOWN BEACH (OLD SAYBROOK) is a lake in Middlesex County, Connecticut. Blue-green algae are not currently monitored at this water.
Blue-green algae (cyanobacteria) blooms are most common from midsummer into early fall, when the water is warm, calm, and rich in nutrients from runoff. They can produce toxins that make people sick and can be rapidly fatal to dogs, so skip water that looks green, scummy, or like spilled paint, and keep children and pets out of it.
Frequently asked: swimming in TOWN BEACH (OLD SAYBROOK)
- Is it safe to swim in TOWN BEACH (OLD SAYBROOK) right now?
- TOWN BEACH (OLD SAYBROOK) is clear to swim today. Blue-green algae are not currently monitored at this water. Conditions can change quickly with wind, heat, and rain, so check the posted signs and look at the water before you get in.
- Does TOWN BEACH (OLD SAYBROOK) have blue-green algae (cyanobacteria)?
- Blue-green algae are not currently monitored at TOWN BEACH (OLD SAYBROOK). Watch for green, blue-green, or paint-like scum and avoid the water if you see it.
- Can dogs swim in TOWN BEACH (OLD SAYBROOK)?
- No bloom is detected at TOWN BEACH (OLD SAYBROOK) today, but dogs are much more vulnerable to blue-green algae than people, and blooms can form within hours. Always keep dogs away from water that looks green, scummy, or discolored, and rinse them off after swimming.
- How many Connecticut lakes and beaches have swim advisories today?
- Today, 3 Connecticut waters are under a swim advisory and 27 more warrant caution, out of 92 monitored waters SwimZone tracks in the state.
- How is TOWN BEACH (OLD SAYBROOK)'s water quality measured?
- SwimZone builds this read from EPA CyAN satellite imagery for blue-green algae, official beach and fecal-bacteria advisories where a program monitors TOWN BEACH (OLD SAYBROOK), and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.