The Oakland County Health Division Beach Monitoring Program for 2021 begins on June 7th and concludes August 13th. This year the County is monitoring 100 beaches on 59 different lakes.

The water collection and beach surveying are conducted by environmental health students hired by the County for summer internships. Water at each of the beaches is tested on a weekly basis, measuring for an indicator bacteria, E. Coli. As an indicator, if E. Coli is present, other, more harmful and harder to detect organisms could be present.

Monitored beaches are to meet the one day standard of 300 colonies per 100 milliliters of water AND the 30 day geometric average standard of 130 colonies per 100 milliliters. If a beach does not meet the water quality standard, it will be closed until satisfactory samples are obtained.

2021 Beach List
2021Currently Closed Beaches
2021 Historically Closed Beaches

Additional Info