The Rhode Island Department of Health (RIDOH) and the Rhode Island Department of Environmental Management (DEM) have issued a warning regarding certain ponds in Roger Williams Park, Providence. The advisory concerns Edgewood Lake, Cunliff Lake, and Elm Lake due to a confirmed cyanobacteria bloom. Cyanobacteria, also known as blue-green algae, are typically found in water bodies but can form harmful algae blooms (HABs) under specific conditions.
All recreational activities such as swimming, fishing, boating, and kayaking are advised against at these locations due to health risks. The RIDOH State Health Laboratory detected toxins or high cell counts from water samples collected by DEM at these sites. This advisory is effective until further notice.
Caution is advised throughout Roger Williams Park Ponds since cyanobacteria HABs can shift locations within ponds and lakes. It is recommended not to drink untreated water or consume fish from affected areas. Pet owners should prevent their pets from drinking or swimming in this water.
Contact with toxin-producing cyanobacteria can lead to skin irritation and symptoms like stomachache, diarrhea, vomiting, and nausea if ingested. Less common effects include dizziness, headache, fever, liver damage, and nervous system damage. Young children and pets are particularly vulnerable as they might swallow water while near it. Anyone experiencing symptoms after contact should consult a healthcare provider.
In case of contact with a cyanobacteria HAB:
– Rinse skin with clean water immediately.
– Shower and wash clothes upon returning home.
– Wash exposed pets with clean water right away; do not let them lick algae off their fur.
– Contact a vet if pets show signs of illness such as tiredness or vomiting.
– Seek medical advice if feeling unwell after exposure.
Affected waters may appear bright to dark green with thick algae on the surface resembling green paint or pea soup. Avoid contact if you observe such conditions.
To report suspected cyanobacteria blooms, reach out to DEM’s Office of Water Resources at 401-222-4700 Press 6 or email DEM.OWRCyano@dem.ri.gov along with a photograph if possible. For more information and updates on advisories via the Freshwater Cyanobacteria Tracker Dashboard visit: www.dem.ri.gov/bluegreen

