
Harmful Algal Blooms Monitoring Program
Harmful Algal Blooms Detected – Weekly Update
This week's monitoring has detected harmful algal blooms at the following locations.
Capaum Pond (Site A)
Hummock Pond (Sites A, B, C and F)
Washing Pond (Site A)
Special Notice for Sesachacha Pond:
Sesachacha Pond has been closed for recreation due to bacterial exceedance. Testing will be conducted daily by the Nantucket Health Department until the pond receives a passing result. The pond is not experiencing a harmful algal bloom; this result comes from the Nantucket Health Department. Please do not recreate in or around Sesachacha Pond until further notice. The testing results dashboard is linked below.
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Email emorgan@nantucket-ma.gov