The local health unit has begun testing the water quality at eight area beaches.
Throughout the summer months, water samples are taken on Wednesdays and lab tested for E. coli bacteria count analysis.
The Windsor Essex County Health Unit takes water samples from Sandpoint Beach, Lakeshore Lakeview Park West Beach, Point Pelee Northwest Beach, Seacliff Park Beach, Cedar Island Beach, Cedar Beach, Colchester Beach, and Holiday Beach.
Every Friday, water testing results can be found online and by calling the beach hotline at 519-258-2146, extension 1490.
After the first week of testing, all beaches are open.
Public beaches must post a warning or a closure sign if the beach results show higher than acceptable levels of E. coli bacteria. Pollution is also typically higher after a heavy rainfall.