Boston Harbor
and Massachusetts Bay
Massachusetts
Water Resources Authority
| Archive |
Environmental Monitoring Data
from Boston Harbor, Beaches & Tributary Rivers
Boston Harbor is an estuary--a marine ecosytem where fresh water from the rivers enters the ocean. Since 1989, the Massachusetts Water Resources Authority (MWRA) has measured bacteria, algae, water clarity, dissolved oxygen, nutrients, and suspended solids at more than 70 locations in the Harbor and the Charles, Neponset, and Mystic rivers. |
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Water quality at Wollaston, Carson, Constitution, Tenean and Pleasure Bay beaches is tested by the Department of Conservation and Recreation (DCR) with assistance from the Massachusetts Water Resources Authority. For more information and other beach water quality links, visit MWRA's Boston Harbor Beaches page.
Beach Fact Sheets (PDF) |
Current Season Beach Data |
Monitoring Locations |
| Constitution Map | ||
| Castle Island Map | ||
| Pleasure Bay Map | ||
| City Point Map | ||
| M Street Map | ||
| Carson Map | ||
| Malibu Map | ||
| Tenean Map | ||
| Wollaston Map | ||
| Download historical beach data (last season and older) | ||
See also:
Technical Report List
including Boston Harbor water quality update (2017)
Harbor and Bay Literature List
Historical Beach Data
Related Articles
Wastewater input reductions reverse historic hypereutrophication of Boston Harbor, USA. (NIH)
Non-linear responses of a coastal aquatic ecosystem to large decreases in nutrient and organic loadings. (Estuaries and Coasts)