Beach · Ocean County · NJ
Is Seaside Park Borough at O St safe to swim?
No advisory or algae bloom reported for this water today.
Updated July 19, 2026 · New Jersey beach program (EPA BEACON)
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Know before you get in at Seaside Park Borough at O St.
Get an alert the day a bacteria or algae advisory goes up.
What's in the water at Seaside Park Borough at O St right now
As of July 19, 2026, Seaside Park Borough at O St in Ocean County, New Jersey 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 0.0 in, which can wash bacteria and nutrients into the water.
Blue-green algae at Seaside Park Borough at O St
Seaside Park Borough at O St is a lake in Ocean County, New Jersey. 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 Seaside Park Borough at O St
- Is it safe to swim in Seaside Park Borough at O St right now?
- Seaside Park Borough at O St 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 Seaside Park Borough at O St have blue-green algae (cyanobacteria)?
- Blue-green algae are not currently monitored at Seaside Park Borough at O St. Watch for green, blue-green, or paint-like scum and avoid the water if you see it.
- Can dogs swim in Seaside Park Borough at O St?
- No bloom is detected at Seaside Park Borough at O St 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 New Jersey lakes and beaches have swim advisories today?
- Today, 4 New Jersey waters are under a swim advisory and 73 more warrant caution, out of 467 monitored waters SwimZone tracks in the state.
- How is Seaside Park Borough at O St'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 Seaside Park Borough at O St, and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.