See Source Info tab to understand what these results mean
Meets water quality standards
This status is based on the latest sample, taken on July 22nd, 2026
Upper St. Lawrence Riverkeeper
updates the status of this beach as soon as test results become available.
These results were posted to Swim Guide on July 22nd, 2026 at 10:09.
Monitoring Frequency:
Potter's Beach is sampled
Bi-Weekly from
July 2nd
to
August 27th.
Water Quality Graph:
About Potter's Beach
Potters Beach is a swimming area located on the St. Lawrence River off the West end of Grindstone Island near Clayton, New York. Potters Beach is the only naturally occurring sandy beach in the area and is a popular place to swim and have fun all summer long. The only way to access Potters Beach is by watercraft (navigation chart or GPS unit encouraged).
Current Weather
23°C
Clear
Source Information
Recreational public beaches in upstate New York are tested at least once every week typically from mid-June to September. Freshwater beaches in New York are posted when a single sample exceeds 235 E. coli / 100 ml or when the geometric mean of samples collected over a 30-day period exceeds 126 E. coli / 100 ml. Chapter I of the State Sanitary Code Subpart 6-2 includes more criteria for freshwater quality, but most monitoring agencies rely on the E. coli standard.