Unfortunately the Cyanobacteria Advisory remains in effect. Below is the note from Kate at NH DES.
Province Lake was resampled today, 10 August 2023. Unfortunately, the cyanobacteria density continues to exceed the state limit of 70,000 cell/mL, so the advisory will remain active. The cyanobacteria density has decreased from last week. Samples ranged from 110,400 cells/mL – 1,800 cells/mL, though most were around 40,000 cells/mL. Please keep signs posted at public access points. NHDES will arrange for sampling again next week. If people ask for updates on the current cyanobacteria advisory status, please direct them to the Healthy Swimming Mapper. If you click on the advisory symbol, you can see our most recent sampling date. When advisories are lifted, the red symbol for the waterbody will no longer be on the map.
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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