West Haven beaches are reopening after sewage and black algae appeared in the water on Wednesday.
Water samples collected late Wednesday afternoon at city beaches and tested for 24 hours at a state Department of Agriculture lab have revealed fragments of decomposing seaweed, which are non-toxic and pose no health risks to the public, city health director Maureen B. Lillis said on Friday.
Bradley Point Beach has reopened, while Oak Street Beach and Altschuler Beach will reopen on Saturday morning.
Officials were asking people not to swim at West Haven beaches after sewage and black algae appeared in the water on Wednesday.
Beachgoers saw a "large, dark area" across a mile-long stretch in the water heading toward land around 2 p.m., West Haven Fire Department Chief Robert Schwartz said.