Reports of bi-weekly Summer water quality testing.
E. coli, dissolved Oxygen and pH levels of river water.
2025 Results
- Souhegan and Merrimack Rivers water quality report from 6-24-2025
- Souhegan and Merrimack Rivers water quality report from 6-10-2025
2024 Results
- Souhegan and Merrimack Rivers water quality report from 8-20-2024
- Souhegan and Merrimack Rivers water quality report from 8-06-2024
- Souhegan and Merrimack Rivers water quality report from 7-23-2024
- Souhegan and Merrimack Rivers water quality report from 7-09-2024
- Souhegan and Merrimack Rivers water quality report from 6-29-2024
2023 Results
- 2023 Season Summary
- Souhegan and Merrimack Rivers water quality report 2023-09-05
- Souhegan and Merrimack Rivers water quality report 2023-08-22
- Souhegan and Merrimack Rivers water quality report 2023-08-08
- Souhegan and Merrimack Rivers water quality report 2023-07-25
- Souhegan and Merrimack Rivers water quality report 2023-07-11
- Souhegan and Merrimack Rivers water quality report 2023-06-27
- Souhegan and Merrimack Rivers water quality report 2023-06-13
2022 Results
- Souhegan and Merrimack Rivers water quality report 2022-08-30
- Souhegan and Merrimack Rivers water quality report 2022-08-16
- Souhegan and Merrimack Rivers water quality report 2022-08-02
- Souhegan and Merrimack Rivers water quality report 2022-07-19
- Souhegan and Merrimack Rivers water quality report 2022-07-05
- Souhegan and Merrimack Rivers water quality report 2022-06-21
Results from 1998 to 2021