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Franklin Pierce 

Lake association

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cyanobacteria bloom report information

When you head to the water's edge in the summer, always perform your personal risk-assessment prior to swimming or letting your pets in. Look for any discoloration or unusual growth, and if you see something suspicious stay out of the water and report it! Please report through our NEW bloom report form. This survey will get all the information we need from you in one round of communication, allowing us to more quickly respond to your reports. You can also find this form by searching "NHDES HAB" on the internet, navigating to our page, and scrolling down the the "See a bloom?" section.

Our Healthy Swimming Mapper also has new features, including more information about each warning, pictures of the bloom, and alerts posted directly on the map. We are working on adding links to the cyanobacteria history for each waterbody, but that will be coming soon! There is also a link to the bloom report form on this website.

We will also be issuing a weekly statewide cyanobacteria update. Sign up by selecting the "Healthy Swimming Updates" email list.

Thank you all for being our "eyes on the water", I look forward to working with you to help your communities swim safely this season!

Kate Langley Hastings
Cyanobacteria HAB Program Coordinator
Watershed Management Bureau, Water Division
New Hampshire Department of Environmental Services
29 Hazen Drive, P.O. Box 95, Concord, NH 03302-0095


PO Box 1836

Hillsborough, NH 03244


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