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.

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

Burlington County

  • Sylvan Lakes, Burlington Township

Camden County

  • Dramasei Park, Hadonfield

Hunterdon County

  • Spruce Lake Reservoir, Clinton

Mercer County

  • Rosedale Lake, Pennington
  • Stacy Lake, Trenton

Middlesex County

  • Papaianni Lake, Edison

Monmouth County

  • Deal Lake, Asbury Park
  • Sunset Lake, Asbury Park

Morris County

  • Budd Lake, Mount Olive

Passaic County

  • Greenwood Lake, West Milford

Salem County

  • Memorial Lake, WoodsTown

Sussex County

  • Lake Hopatcong, Hopatcong
  • Musconetang Lake, Stanhope
  • Sussex County Fire Academy Pond, Hampton

Contact reporter Dan Alexander at or via Twitter @DanAlexanderNJ

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