Beach · Carteret County · NC
Is Mile Post 19 1/2, oceanside safe to swim?
Recent heavy rain may have spiked bacteria since the last clear sample.
Updated July 19, 2026 · North Carolina beach program (EPA BEACON)
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Know before you get in at Mile Post 19 1/2, oceanside.
Get an alert the day a bacteria or algae advisory goes up.
What's in the water at Mile Post 19 1/2, oceanside right now
As of July 19, 2026, Mile Post 19 1/2, oceanside in Carteret County, North Carolina carries a swim caution. 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 1.8 in, which can wash bacteria and nutrients into the water.
Blue-green algae at Mile Post 19 1/2, oceanside
Mile Post 19 1/2, oceanside is a lake in Carteret County, North Carolina. 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 Mile Post 19 1/2, oceanside
- Is it safe to swim in Mile Post 19 1/2, oceanside right now?
- Mile Post 19 1/2, oceanside carries a swim caution 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 Mile Post 19 1/2, oceanside have blue-green algae (cyanobacteria)?
- Blue-green algae are not currently monitored at Mile Post 19 1/2, oceanside. Watch for green, blue-green, or paint-like scum and avoid the water if you see it.
- Can dogs swim in Mile Post 19 1/2, oceanside?
- No bloom is detected at Mile Post 19 1/2, oceanside 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 North Carolina lakes and beaches have swim advisories today?
- Today, 13 North Carolina waters are under a swim advisory and 113 more warrant caution, out of 255 monitored waters SwimZone tracks in the state.
- How is Mile Post 19 1/2, oceanside'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 Mile Post 19 1/2, oceanside, and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.