Jacques Cartier State Park

Brier Hill, New York

Jacques Cartier State Park’s sandy beach is sheltered by a bay, making it a perfect calm swimming spot. The park also offers boat rentals and is frequented by fishers who can fish off the boat docks. Washroom facilities and parking are available on site.

Water Quality
  • Passed water quality tests 60-95% of the time

  • Historical Status
  • This status is based on the latest sample, taken on August 18th, 2022. Lake Ontario Waterkeeper updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on August 19th, 2022 at 11:46 PM.
For water quality icon legend, click:  
Monitoring Frequency

Jacques Cartier State Park is sampled weekly from June 1st to September 15th.

Source Information

Thousand Islands State Park samples beaches weekly from June 12 to September 4. When sample results are shared via park staff (by calling each park individually), Lake Ontario Waterkeeper updates Swim Guide.

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.

In the USA, the Environmental Protection Agency has two sets of recommendations for freshwater and marine beaches. A single sample at a freshwater beach should not exceed 235 E. coli / 100 ml of water. A single sample at a marine beach should not exceed 104 Enterococci / 100 ml of water. The geometric mean of 5 samples from a freshwater beach should not exceed 126 E. coli / 100 ml of water. The geometric mean of 5 samples from a marine beach should not exceed 35 Enterococci / 100 ml of water. States may choose to use this standard or they may substitute a standard that is "as protective as" the EPA's recommendation. The Beach Act is the nation's primary beach protection law.

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Water Quality Graph

Jacques Cartier State Park

Brier Hill, New York

Water Quality
  • Passed water quality tests 60-95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on August 18th, 2022. Lake Ontario Waterkeeper updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on August 19th, 2022 at 11:46 PM.
For water quality icon legend, click:  

Jacques Cartier State Park’s sandy beach is sheltered by a bay, making it a perfect calm swimming spot. The park also offers boat rentals and is frequented by fishers who can fish off the boat docks. Washroom facilities and parking are available on site.

Monitoring Frequency

Jacques Cartier State Park is sampled weekly from June 1st to September 15th.

Source Information

Thousand Islands State Park samples beaches weekly from June 12 to September 4. When sample results are shared via park staff (by calling each park individually), Lake Ontario Waterkeeper updates Swim Guide.

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.

In the USA, the Environmental Protection Agency has two sets of recommendations for freshwater and marine beaches. A single sample at a freshwater beach should not exceed 235 E. coli / 100 ml of water. A single sample at a marine beach should not exceed 104 Enterococci / 100 ml of water. The geometric mean of 5 samples from a freshwater beach should not exceed 126 E. coli / 100 ml of water. The geometric mean of 5 samples from a marine beach should not exceed 35 Enterococci / 100 ml of water. States may choose to use this standard or they may substitute a standard that is "as protective as" the EPA's recommendation. The Beach Act is the nation's primary beach protection law.

Read more
Water Quality Graph

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