This list includes waterbodies that have been reported to DPH by local, state and federal partners that manage or regulate the respective waterbody.
- Lake Holland, Belchertown
- Chestnut Hill Reservoir, Boston
- Charles River--Downstream of Massachusetts Ave (the Harvard Bridge), Boston/Cambridge
- Muddy River (Avenue Louis Pasteur to Riverway), Boston
- Quaboag Pond, Brookfield/East Brookfield
- Brookline Reservoir, Brookline
- Freeman Lake, Chelmsford
- Heart Pond, Chelmsford
- Chicopee State Park, Chicopee
- Rubber Thread Pond, Easthampton
- Seymour Pond, Harwich/Brewster
- West Reservoir, Harwich
- Schoolhouse Pond, Hyannis
- Long Pond, Marstons Mills
- Santuit Pond, Mashpee
- Capaum Pond, Nantucket
- Hummock Pond, Nantucket
- Lake Cochituate—Middle Pond
- Lake Cochituate—South Pond, Natick
- Crystal Lake, Newton
- Carbuncle Pond, Oxford
- Clear Pond, Plymouth
- Big Sandy Pond, Plymouth
- Billington Sea, Plymouth
- Great Herring Pond, Plymouth
- Little Herring Pond, Plymouth
- Round Hole Pond (Esta Drive), Plymouth
- Russell Mill Pond, Plymouth
- Chebacco Lake, South Hamilton
- Bass Pond, Springfield
- Lake Quannapowitt, Wakefield
- Hardy Pond, Waltham
- Glen Charlie Pond, Wareham
- Lake Webster—Middle Pond, Webster
- Pequot Pond/Hampton Ponds, Westfield
- Blackstone Canal, Uxbridge
Please note: This should not be considered a complete list of all advisories in Massachusetts. This list includes waterbodies that have been reported to DPH by local, state and federal partners that manage or regulate the respective waterbody. If you think an algal bloom may be present you are encouraged to avoid contact with the water — WHEN IN DOUBT, STAY OUT! To see examples of what algae blooms look like, please visit the Identifying cyanobacterial blooms and scums page.