When it comes to the Charles, a lot depends on the weather. And Massachusetts saw record rainfall last year.
Charles River Report Card
Report cards show progress, problems in Boston-area rivers
Boston Rivers Were Pretty Clean In 2020, But Sewage Is Still A Problem Says EPA
Trends in nutrient-related pollution as a source of potential water quality damages: A case study of Texas, USA - ScienceDirect
2022 Charles River Report Card
Charles River Report Card
Boston Rivers Were Pretty Clean In 2020, But Sewage Is Still A Problem Says EPA
Charles River Report Card
Boston River Report Cards Show Widespread Improvements in Bacteria Concentrations and Remaining Localized Challenges