Hello PLA Community,
Unfortunately the Cyanobacteria Warning has been reissued for Province Lake. This is based on bloom reports and pictures shared over the weekend and not a new sampling. They will be back on Friday to resample. See official announcement below.
Regards,
The PLA
Hi All,
I apologize for the confusion, but we will be “re-opening” the cyanobacteria warning on Province Lake. Over the weekend, several people reported increased bloom conditions. Please see the pictures attached. Bloom conditions have reappeared along the south shoreline on Bonnyman Road. We are reopening the warning without additional sampling because we already know there is cyanobacteria in the system (sampling on Friday indicated continued cyanobacteria presence below bloom densities), and from the pictures it is evident that the density will be above the recreational use guideline. Please let me know if you have any questions. We will plan to resample again on 8/16. Please post signs again at public access points.
| Waterbody | Province Lake, Effingham and Wakefield |
| Status | WARNING |
| Issued | 8/2/2024 – reissued 8/12 |
| Bloom Description (picture attached) | Thick green clouds of material and light green films on surface of water. |
| Cyanobacteria Taxa | Dolichospermum |
| Cyanobacteria Density (cells/mL) | 535,000 |
| Notes | Bloom appeared again 8/10 and 8/11 at several locations along the south shoreline. |
Warnings are issued when cell counts exceed 70,000 cells/mL. NHDES advises lake users to not wade or swim in or near the vicinity of a bloom during a warning. Please also keep pets and livestock out. The warning is intended as a precautionary measure for short term exposure. Please see our newly updated FAQs for more information.
Warnings remain active until the bloom subsides. I will reach out to you before then for updates. If you have information on where accumulated material is being observed at that time, please let us know to guide our sampling efforts. You can also see warning details on the Health Swimming Mapper.
To the health officer or other official responsible for posting signs, please post cyanobacteria warning signs at all public access points. We have a new version of the sign available for use. Please feel free to print and use this new sign until we can deliver a laminated version to you. Please let us know how many and the address to drop off new signs if you are interested. NHDES will be in contact again once the warning is lifted and signs can be removed.
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 to be directly included on future communications from NHDES. If you prefer to no longer receive these sampling updates, simply respond, and indicate “unsubscribe”.
Best,
Kate Hastings
Program Coordinator
The CyanoHAB Team
Cyanobacteria Harmful Algal Bloom Program
Watershed Management Bureau, Water Division
New Hampshire Department of Environmental Services
29 Hazen Drive, P.O. Box 95, Concord, NH 03302-0095
603-848-8094 hab@des.nh.gov
