The Rhode Island Department of Health (RIDOH) and the Rhode Island Department of Environmental Management (DEM) have issued a recommendation for the public to avoid all contact with JL Curran Reservoir and Blackamore Pond in Cranston. This advisory follows confirmation of a cyanobacteria bloom, also known as blue-green algae, in these water bodies.
Cyanobacteria are naturally found in water but can multiply rapidly under certain conditions, forming harmful algae blooms (HABs). These blooms can produce toxins that pose health risks to both humans and animals. As a result, RIDOH and DEM advise against all recreational activities at JL Curran Reservoir and Blackamore Pond, including swimming, fishing, boating, and kayaking.
“All recreation, including swimming, fishing, boating and kayaking, is high risk to health and recommended to be avoided at this location. HABs can produce toxins which can be harmful to humans and animals,” according to the joint statement from RIDOH and DEM.
Officials caution that HABs may shift locations within ponds or lakes. Residents are advised not to drink untreated water or consume fish from affected areas. Pet owners should prevent their animals from drinking or swimming in these waters.
“Skin contact with water containing toxin-producing cyanobacteria can cause irritation of the skin, nose, eyes, and throat. Symptoms from ingestion of water can include stomachache, diarrhea, vomiting, and nausea. Less common symptoms can include dizziness, headache, fever, liver damage, and nervous system damage. Young children and pets are at higher risk for health effects associated with cyanobacteria HABs because they are more likely to swallow water when they are in or around bodies of water. People who have had contact with these ponds and experience those symptoms should contact their healthcare provider,” officials stated.
If exposure occurs—either for people or pets—officials recommend rinsing skin immediately with clean water upon leaving the area. Clothes should be washed after returning home. If a pet has been exposed to affected water or shows signs such as lethargy or gastrointestinal issues within 24 hours after exposure, owners should consult a veterinarian.
“If you feel sick after contact, call a healthcare provider,” the advisory states.
Affected waters may appear bright to dark green with thick floating algae resembling green paint or pea soup. Residents are urged to keep themselves and their pets away from any suspicious-looking water.
Suspected cyanobacteria blooms can be reported by contacting DEM’s Office of Water Resources at 401-222-4700 (Press 6) or by emailing DEM.OWRCyano@dem.ri.gov; photographs of blooms are encouraged if possible. More information on current advisories is available through the Freshwater Cyanobacteria Tracker Dashboard on www.dem.ri.gov/bluegreen.
