Hi Province Lake Community,

Good news .. the Advisory has been lifted.  The official NH DES notification is below.


Hi All,
The cyanobacteria WARNING (ADVISORY) that was issued on 7 September 2023 has been REMOVED for Province Lake, Effingham/Wakefield as of today 14 September 2023. The highest observed density was 8733 cells/mL. While the bloom accumulation has dissipated, NHDES advises that lake-goers look out for discoloration or surface accumulations in the future. It was slightly windy during sampling today, and after all the rain the cyanobacteria may return with several sunny days. Please continue to monitor your individual shoreline for changing conditions.

The red cyanobacteria advisory signs can now be removed from public access points.

Thank you all for your communication. If you see cyanobacteria in the future, please report it here!

Please forward this email to other residents / community members who need this information. If they would like to be added to the email distribution list, please have them sign up through this form to be directly included on future communications from NHDES. If you prefer to no longer receive these sampling updates, simply respond, and indicate “unsubscribe”.


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