The information on this page reflects the suspected or confirmed HAB events that the Department was made aware of in 2017. There may be other HABs that are occuring in NJ that are not reflected here. If you see a suspected HAB,
. In the case of a suspected bloom, people, pets and livestock should avoid contact with discolored water or water that has algae scums on the surface. Do not drink or consume the water. Do not eat fish from the waterbody. If there is contact with the water, rinse off as soon as possible with fresh water and seek medical or veterinary assistance if people or animals are experiencing adverse health effects after being exposed to a bloom.
The New Jersey State map image reflects the locations of reported HABs. A Green dot indicates a HAB was confirmed at that location, a Gray dot shows the confirmation of a non-HAB at the reported location. Numbers on the map correspond to the municipality listed in the accompanying table below which provides additional information regarding each HAB report including the affected waterbody(ies), county and municipality, and whether the bloom is suspected, confirmed or not a HAB after all. If the bloom is a HAB, the table also lists the lead agency, whether or not Advisories have been posted, if so, by whom, when they were posted and when they were removed. Links to additional information, when available, are also included.
Map Number (by Municipality) |
Waterbody Name: |
County: |
Municipality: |
Date Bloom Reported: |
Status: |
Lead Agency: |
Advisory Posted (Y/N): |
Bathing Beach Closure
(In season) |
If Yes, By Whom: |
Date Posted: |
Date Removed: |
Actions |
1 |
Swartswood Lake |
Sussex |
Stillwater Twp |
6/20/2017 |
Confirmed |
State Parks Service |
Yes |
Yes |
State Parks Service |
6/22/2017 |
7/2/2017 |
Completed |
2 |
Shabakunk Creek/Lake Sylva |
Mercer |
Ewing Twp |
7/13/2017 |
Confirmed |
Mercer County Health Dept. |
Yes |
NA |
Ewing Twp/TCNJ |
7/14/2017 |
8/8/2017 |
Completed |
3 |
Colonial Lake (part of Shabakunk event above) |
Mercer |
Lawrence Twp |
7/21/2017 |
Confirmed |
Mercer County Health Dept. |
Yes |
NA |
Lawrence Twp |
7/21/2017 |
8/8/2017
|
Completed |
4 |
Branch Brook Lake |
Essex |
Newark |
7/13/2017 |
Confirmed |
Essex County Parks Dept. |
Yes |
NA |
Essex County Parks Dept. |
7/14/2017 |
12/20/2017 |
Completed |
5 |
Deal Lake |
Monmouth |
Deal |
7/18/2017 |
Confirmed |
Monmouth County Health Dept. |
Yes |
NA |
Monmouth County Health Dept. |
7/19/2017 |
12/1/2017 |
Completed |
6 |
Lake Hopatcong |
Sussex |
Hopatcong |
7/18/2017 |
HAB not present |
Sussex County Health Dept. |
No |
----- |
----- |
----- |
----- |
Completed |
7 |
Amwell Lake |
Hunterdon |
E. Amwell |
7/28/2017 |
Confirmed |
DEP Fish & Wildlife |
Yes |
NA |
DEP Fish & Wildlife |
7/29/2017 |
8/15/2017 |
Completed |
8 |
Pemberton Lake |
Burlington |
Pemberton Twp |
8/3/2017 |
Confirmed |
DEP Fish & Wildlife |
Yes |
NA |
DEP Fish & Wildlife |
8/8/2017 |
12/20/2017 |
Completed |
1 |
Swartswood Lake |
Sussex |
Stillwater Twp |
8/10/2017 |
Confirmed |
State Parks Service |
Yes |
Yes |
State Parks Service |
8/10/2017 |
8/18/2017 |
Completed |
9 |
Fletcher Lake |
Monmouth |
Bradley Beach |
8/11/2017 |
Confirmed |
Monmouth County Health Dept. |
Yes |
NA |
Monmouth County Health Dept. |
8/11/2017 |
9/8/2017 |
Completed |
10 |
Lake Sara |
Burlington |
Mt. Laurel |
8/8/2017 |
Confirmed |
Burlington Co Health Dept |
Yes |
NA |
Burlington Co Health Dept |
8/17/2017 |
11/27/2017 |
Completed |
2 & 3 |
Lake Sylva/Colonial Lake/Shabakunk Creek |
Mercer |
Ewing & Lawrence Township |
8/25/2017 |
Confirmed |
Mercer County Health Dept. |
Yes |
NA |
Ewing Twp/Lawrence/TCNJ |
8/30/2017 |
9/1/2017 Colonial only |
Completed |
11 |
Un-named Pond |
Atlantic |
Mays Landing |
8/29/2017 |
HAB not present |
Atlantic Co Health Dept |
No |
----- |
----- |
----- |
----- |
Completed |
12 |
Un-named pond AKA Moores Pond |
Cape May |
Middle Township |
8/29/2017 |
HAB not present |
Cape May County Health Dept. |
No |
----- |
----- |
----- |
----- |
Completed |
13 |
Indian Lake |
Monmouth |
Allentown |
8/31/2017 |
HAB not present |
DEP Bureau of Freshwater & Biological Monitoring |
No |
----- |
----- |
----- |
----- |
Completed |
14 |
Meyers Brook |
Morris |
Pequannock |
8/31/2017 |
HAB not present |
DEP Bureau of Freshwater & Biological Monitoring |
No |
----- |
----- |
----- |
----- |
Completed |
1 |
Swartswood Lake |
Sussex |
Stillwater Twp |
9/4/2017 |
Confirmed |
State Parks Service |
Yes |
NA |
State Parks Service |
9/6/2017 |
12/12/17 |
Completed |
15 |
Memorial Lake |
Salem |
WoodsTown Borough |
9/13/2017 |
HAB not present |
DEP Bureau of Freshwater & Biological Monitoring |
No |
----- |
----- |
----- |
----- |
Completed |
16 |
Sunset Lake |
Somerset |
Bridgewater Township |
9/17/2017 |
Confirmed |
DEP Bureau of Freshwater & Biological Monitoring |
Yes |
NA |
Sunset Lake Association |
9/22/2017 |
12/20/2017 |
Completed |
16 |
Washington Valley |
Somerset |
Bridgewater Township |
9/18/2017 |
Confirmed |
DEP Bureau of Freshwater & Biological Monitoring |
Yes |
NA |
Somerset County Park Commission |
9/21/2017 |
12/20/2017 |
Completed |
17 |
Silver lake |
Camden |
Gibbsboro Borough |
9/16/2017 |
Confirmed |
DEP Bureau of Freshwater & Biological Monitoring |
not confirmed |
NA |
----- |
----- |
11/27/2017 |
Completed |
18 |
Casting Pond |
Passaic |
Ringwood Borough |
9/27/2017 |
HAB not present |
DEP Bureau of Freshwater & Biological Monitoring |
No |
----- |
----- |
----- |
----- |
Completed |
2 |
Lake Ceva |
Mercer |
Ewing Township |
10/4/2017 |
Confirmed |
Mercer County Health Department |
Yes |
NA |
Ewing Twp/TCNJ |
10/4/2017 |
11/15/2017 |
Completed |
19 |
Penbryn Lake |
Camden |
Winslow Township |
10/10/2017 |
Confirmed |
DEP Fish & Wildlife |
Yes |
NA |
DEP Fish & Wildlife |
10/12/2017 |
11/27/2017 |
Completed |
20 |
Pompton River |
Morris/Passaic |
Lincoln Park/ Wayne |
10/17/2017 |
Confirmed |
DEP Bureau of Freshwater & Biological Monitoring |
Yes |
NA |
Lincoln Park Health Dept/Wayne Health Dept. |
10/20/2017 |
10/26/2017 |
Completed |
21 |
Passaic River |
Bergen |
Wallington Borough |
10/15/2017 |
HAB not present |
DEP Bureau of Freshwater and Biological Monitoring |
No |
----- |
----- |
----- |
----- |
Completed |
22 |
Lincoln Park Community Lake |
Morris |
Lincoln Park |
10/24/2017 |
Confirmed |
DEP Bureau of Freshwater & Biological Monitoring |
Yes |
NA |
Lincoln Park Health Dept |
10/25/2017 |
11/15/2017 |
Completed |
23 |
Budd Lake |
Morris |
Mt. Olive Twp |
11/15/2017 |
Confirmed |
DEP Bureau of Freshwater and Biological Monitoring |
Yes |
NA |
Mt. Olive Twp Health Dept. |
11/16/2017 |
12/20/2017 |
Completed |
24 |
Manny's Pond |
Hunterdon |
Union Twp. |
11/30/2017 |
Confirmed |
DEP Bureau of Freshwater & Biological Monitoring |
Yes |
NA |
Hunterdon County Health and
Parks Departments |
12/1/2017 |
12/20/2017 |
Completed |
18 |
Wanaque Reservoir |
Passaic |
Ringwood Borough |
12/3/2017 |
Confirmed |
DEP Bureau of Freshwater
and Biological Monitoring/ DEP Bureau of Safe Drinking Water |
Yes |
NA |
Passaic County Health Dept. |
12/6/2017 |
12/7/2017 |
Completed |