Historical Water Quality
Passed water quality tests at least 95% of the time
This status is based on the latest sample, taken on August 18th, 2025 Swim Guide - Main updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on August 20th, 2025 at 14:36.
Groton - East Shore (North) is sampled Weekly from May 1st to October 1st.
About Groton - East Shore (North)
Current Weather
Source Information
Ledge Light Health District monitors water quality at beaches in this region from mid-May to mid-September. Water samples are collected at weekly from different bathing areas. Advisories are posted to the health district website. Swim Guide checks the advisories daily, during the monitoring season. A beach is marked Green when bacteria counts are below 104 units / 100ml of marine water or 235 / 100ml of fresh water, A beach is marked Red when two consecutive samples exceed 104 bacteria units / 100ml of marine water or 235 / 100ml of fresh water A beach is marked Grey when there is no recent or reliable information available.
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