Pond · Washington County · VT
Is Berlin Pond safe to swim?
No advisory or algae bloom reported for this water today.
Updated July 20, 2026 · EPA CyAN satellite
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What's in the water at Berlin Pond right now
As of July 20, 2026, Berlin Pond in Washington County, Vermont is clear to swim. Satellite imagery detected no blue-green algae bloom as of July 19, 2026. Rainfall over the past week totaled 0.5 in, which can wash bacteria and nutrients into the water.
Blue-green algae at Berlin Pond
Berlin Pond is a pond in Washington County, Vermont covering about 0.5 sq mi, the 24th-largest of the 26 lakes SwimZone monitors in Vermont. Satellite imagery detected no blue-green algae bloom as of July 19, 2026.
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.
Bloom history at Berlin Pond
From EPA CyAN's satellite archive
Over 3 summers of satellite monitoring since 2020, Berlin Pond has not reached a blue-green algae advisory level. Conditions can still change quickly, so check the current read before you swim.
Frequently asked: swimming in Berlin Pond
- Is it safe to swim in Berlin Pond right now?
- Berlin Pond is clear to swim today. Satellite imagery detected no blue-green algae bloom as of July 19, 2026. Conditions can change quickly with wind, heat, and rain, so check the posted signs and look at the water before you get in.
- Does Berlin Pond have blue-green algae (cyanobacteria)?
- No blue-green algae bloom is detectable at Berlin Pond as of July 19, 2026 (below the satellite's roughly 10,000 cells/mL detection limit). Cyanobacteria can still appear within hours in warm, calm, nutrient-rich water, so look before you swim.
- Can dogs swim in Berlin Pond?
- No bloom is detected at Berlin Pond 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 often does Berlin Pond have blue-green algae blooms?
- Over 3 summers of satellite monitoring since 2020, Berlin Pond has not reached a blue-green algae advisory level. Conditions can still change quickly, so check the current read before you swim.
- How many Vermont lakes and beaches are unsafe for swimming today?
- Today, 3 Vermont waters are above a safe-contact threshold and 2 more warrant caution, out of 29 monitored waters SwimZone tracks in the state.
- How is Berlin Pond'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 Berlin Pond, and a recent-rainfall overlay, all refreshed daily. It was last updated July 20, 2026.