Lake Information

The DEP advisory to avoid contact with Lake Hopatcong water due to the harmful algal bloom has kept the Floating Classroom docked for most of the summer.

On Friday, August 9, 2019 the latest NJDEP testing results bring some very welcome news for Lake Hopatcong, as numbers of Phycocyanin levels decreased by 58% since the start of the week.

Largest Wakeboarding Event in the Northeast, will once again be held on Lake Hopatcong, as hosted by the great Beach Front Venue of the Lake Forest Yacht Club.

Based upon two readings below the 20,000 level, Byrams Cove on Lake Hopatcong has now been opened for swimming.

On Wednesday, August 7, 2019 the NJDEP testing results from Lake Hopatcong came back with some favorable numbers, showing an 39% decrease in the Phycocyanin levels in the lake.

Lake Hopatcong, N.J. (August 7, 2019) On a sunny Monday afternoon in mid July, a single runabout motors its way Lake Hopatcong. Perched on the front deck of the motorboat, Rae Hartwell is taking video of whatever wildlife she can spot—herons, turtles, cormorants, and an eagle soaring overhead.

The Lake Hopatcong Foundation, in cooperation with the New Jersey Council for the Humanities, continues its exploration of water’s environmental and cultural impact as they host the local showing of “Water/Ways,” a Smithsonian Institution traveling exhibition.

As promised by the Lake Hopatcong Foundation the new WildLogica mini-documentary is now finished, and it features everything from wildlife to human life on Lake Hopatcong.

Swimming Advisory Lifted in Second Area of Lake Hopatcong. But Remains In Place For Majority Of Lake Hopatcong, while Dep Continues Daily Monitoring Program

On Wednesday, July 31, 2019 the NJDEP testing results showed decrease in almost all areas of Lake Hopatcong, as measured by aerial and physical testing. At this time Indian Harbor is the only area that is not under the advisory (Open to swimming).

U. S. Coast Guard Auxiliary News Release: Boating Safety – Paddle Boarding and Kayak Deaths on The Increase

During the last two rounds of meetings with the NJDEP, residents requested that areas of Lake Hopatcong be opened when-ever possible in areas that proved negitive.