Not just Hopatcong: 14 lakes in NJ affected by harmful green scum

Another lake was added to the statewide list of those under advisory because of high levels of harmful algal bloom.

The list started with Lake Hopatcong in June after reported incidents of mild skin rashes. Sections of the lake have been reopened as the levels of bacteria decreased.

HAB occurs when cyanobacteria blooms produce a thick, bright green scum on the surface of the water. It can also appear as “spilled paint” or “pea soup.” This appearance is often taken for granted as a normal algae bloom.

Advisories against activity such as swimming and fishing in the water were posted where levels were high. Boating was permitted.

A section of Sylvan Lakes in Burlington Township tested positive for HAB on Thursday.

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The affected affected bodies of water where advisories continue as of Friday afternoon:

Burlington County