August 25, 2022: Not the Naegleria Fowleri parasite.......... is just old fashioned fecal bacteria ...... aka duck poop at work here ......
https://www4.des.state.nh.us/WaterShed_BeachMaps/ posted at Corcoran's Pond Town Beach, Waterville Valley ...... Kennett Park Beach-Silver Lake, Madison.
Click on any of the 12 red squares in southern NH and the warning is Cyanobacteria.
My guess .... a fecal bacteria warning is due to ducks, geese, water fowl and low water inflow/outflow due to the ongoing drought. Hopefully, tomorrow's Friday rain will flush it all away down the brook and the NH-DES orange warning signs will be removed.