This list includes waterbodies that have been reported to DPH by local, state and federal partners that manage or regulate the respective waterbody.
- Beaman Pond, Baldwinville
- Lake Holland, Belchertown
- Chestnut Hill Reservoir, Boston
- Charles River-- (Downstream of the Harvard Bridge), Boston/Cambridge
- Muddy River (Avenue Louis Pasteur to Riverway), Boston
- Sprague Pond, Boston
- Cliff Pond, Brewster
- Brookline Reservoir, Brookline
- Chicopee State Park, Chicopee
- Rubber Thread Pond, Easthampton
- Seymour Pond, Harwich/Brewster
- West Reservoir, Harwich
- Redd’s Pond, Marblehead
- Long Pond, Marstons Mills
- Santuit Pond, Mashpee
- Capaum Pond, Nantucket
- Clark’s Cove, Nantucket
- Hummock Pond, Nantucket
- Washing Pond, Nantucket
- Lake Cochituate—South Pond, Natick
- Carbuncle Pond, Oxford
- Clear Pond, Plymouth
- Big Sandy Pond, Plymouth
- Billington Sea, Plymouth
- Ezekiel Pond, Plymouth
- Great South Pond, Plymouth
- Little West Pond, Plymouth
- Round Hole Pond (Esta Drive), Plymouth
- Russell Mill Pond, Plymouth
- Scokes Pond, Plymouth
- Farm Pond, Sherborn
- Chebacco Lake, South Hamilton
- Bass Pond, Springfield
- Pratt Pond, Upton
- Blackstone Canal, Uxbridge
- Lake Quannapowitt, Wakefield
- Hardy Pond, Waltham
- Whitman’s Pond, Weymouth
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.