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Blue-Green Algal Bloom Notices

Sign up for MakingWaves to receive weekly email updates about blue-green algae bloom notifications. To subscribe to MakingWaves, first subscribe to GovDelivery, and check the box next to MakingWaves on the list of topics.

2015

The map below displays the current blue-green algae bloom notices. Each location is labeled with a number that corresponds to the information in the table below.

There may be other waterbodies with blue-green algae blooms that have not been reported to the DEC.

The table provides more information about the location and status of the notice. The information presented was collected during routine DEC lake monitoring programs, by Citizen Statewide Lake Assessment Program volunteers, and from public reports.

Blooms of other algae are not reported here. The 'What Should You Do' advice provided below should also be followed when blooms not reported here are encountered.

Regulated swimming beaches are regularly monitored and evaluated for the presence of blue-green algae blooms. For information about regulated swimming beaches contact your local health department.

Map and table information is updated weekly.

This page was updated on 8/28/2015. Call the regional DEC office for the most current information or to report a blue-green algae bloom.

DEC encourages the public to view the archive reports table to be aware of lakes that have been removed from the notification map.

Map of waterbodies with a blue-green algae bloom notice in NY.

*Monitoring programs are the Lake Classification and Inventory Survey (LCI) and Citizens Statewide Lake Assessment Program (CSLAP). For specific information about the current sampling results for the lakes sampled through the 2015 NYSDEC Lake Monitoring Program (PDF, 72 KB), contact the Division of Water at 518-402-8179.

Lake Champlain blooms are not reported here. For information about blue-green algae on Lake Champlain, visit the Lake Champlain Committee monitoring page and the Vermont Department of Health's blue-green algae notification page (above two links leave DEC website.)

Waterbodies with Blue-Green Algae Notices
Map Number Waterbody Name County Status Extent of bloom Status Date Type of Sample Change in Status
1 Allegheny Reservoir* Cattaraugus Suspicious Large localized 8/21/2015 Visual Updated listing
2 Andover Pond Allegany Confirmed Open water 8/24/2015 Lab sample New listing
3 Avon Marsh Dam Pond Livingston Confirmed Small localized 8/24/2015 Lab sample New listing
4 Beaver Lake Broome Confirmed Small localized 8/23/2015 Lab sample Updated listing
5 Black Lake* St. Lawrence Confirmed Open water 8/16/2015 Lab sample No change
6 Brooks Lake Richmond Suspicious Large localized 8/28/2015 Visual New listing
7 Canadarago Lake Otsego Confirmed Widespread 8/25/2015 Lab sample New listing
8 Central Park Lake New York Confirmed Widespread 8/26/2015 Lab sample Updated listing
9 Chautauqua Lake* Chautauqua Confirmed Large localized 8/23/2015 Lab sample Updated listing
10 Craine Lake Madison Confirmed Small localized 8/25/2015 Lab sample New listing
11 Deans Pond Cortland Confirmed Widespread 8/15/2015 Lab sample No change
12 Evens Lake Sullivan Confirmed with high toxins Widespread 8/13/2015 Lab sample No change
12 Findley Lake Chautauqua Confirmed Widespread 8/23/2015 Lab sample Updated listing
14 Fort Pond Suffolk Confirmed Large localized 8/27/2015 Lab sample Updated listing
15 Georgica Pond Suffolk Confirmed Widespread 8/25/2015 Lab sample Updated listing
16 Harlem Meer New York Confirmed Small localized 8/26/2015 Lab sample Updated listing
17 Honeoye Lake* Ontario Suspicious Widespread 8/28/2015 Visual Updated listing
18 Indian Pond Bronx Confirmed Widespread 8/26/2015 Lab sample Updated listing
19 Java Lake Wyoming Confirmed Open water 8/23/2015 Lab sample Updated listing
20 Kellis Pond Suffolk Confirmed Not reported 8/25/2015 Lab sample Updated listing
21 Kirk Lake Putnam Confirmed Widespread 8/19/2015 Lab sample Updated listing
22 Lake Agawam Suffolk Confirmed Widespread 8/19/2015 Lab sample No change
23 Lake Como Cayuga Confirmed Small localized 8/25/2015 Lab sample New listing
24 Lake Lincolndale Westchester Confirmed Small localized 8/23/2015 Lab sample New listing
25 Lake Neatahwanta Oswego Confirmed Not reported 8/26/2015 Lab sample New listing
26 Lake of the Woods Jefferson Confirmed Small localized 8/13/2015 Lab sample No change
27 Lake Ronkonkoma* Suffolk Confirmed Large localized 8/27/2015 Lab sample New listing
28 Lake Woodrock Westchester Suspicious Widespread 8/27/2015 Visual Updated listing
29 Laurel Lake Broome Confirmed Small localized 8/26/2015 Lab sample New listing
30 Little Fresh Pond Suffolk Confirmed Open water 8/23/2015 Lab sample New listing
31 Maratooka Lake Suffolk Confirmed Not reported 8/17/2015 Lab sample No change
32 Mariaville Lake Schenectady Confirmed Widespread 8/24/2015 Lab sample Updated listing
33 Martlings Lake Richmond Suspicious Not reported 8/28/2015 Visual New listing
34 McKay Pond Suffolk Confirmed Not reported 8/12/2015 Lab sample No change
35 Mill Pond Genesee Confirmed Open water 8/24/2015 Lab sample Updated listing
36 Mill Pond-Watermill Suffolk Confirmed Not reported 8/19/2015 Lab sample No change
37 Montgomery Lake Sullivan Confirmed Small localized 8/17/2015 Lab sample No change
38 Moon Lake Jefferson Confirmed Small localized 8/19/2015 Lab sample No change
39 Morningside Lake Sullivan Confirmed Small localized 8/13/2015 Lab sample No change
40 Oak Orchard Creek Orleans Suspicious Large localized 8/28/2015 Visual New listing
41 Orange Lake Orange Confirmed Large localized 8/16/2015 Lab sample No change
42 Payne Lake Jefferson Suspicious Not reported 8/25/2015 Visual New listing
43 Peach Lake Putnam Confirmed Small localized 8/19/2015 Lab sample New listing
44 Pond east of Bullville Orange Suspicious Not reported 8/10/2015 Visual No change
45 Prospect Park Lake Kings Suspicious Widespread 8/24/2015 Visual Updated listing
46 Roth Pond Suffolk Suspicious Not reported 8/14/2015 Visual No change
47 Sagaponack Pond Suffolk Confirmed Not reported 8/25/2015 Lab sample Updated listing
48 Saratoga Lake* Saratoga Confirmed Small localized 8/24/2015 Lab sample New listing
49 Seneca Lake* Seneca Confirmed Small localized 8/25/2015 Lab sample Updated listing
50 Sepasco Lake Dutchess Confirmed Small localized 8/18/2015 Lab sample No change
51 Silver Lake Wyoming Confirmed with high toxins Large localized 8/12/2015 Lab sample No change
52 Sixtown Pond Jefferson Suspicious Large localized 8/27/2015 Visual New listing
53 Song Lake Cortland Confirmed Small localized 8/22/2015 Lab sample New listing
54 Wainscott Pond Suffolk Confirmed Not reported 8/25/2015 Lab sample Updated listing
55 Wallkill River Ulster Suspicious Not reported 8/25/2015 Visual New listing
56 Wolfes Pond Richmond Confirmed with high toxins Small localized 8/18/2015 Lab sample No change

* blooms in large lakes may be limited to specific shorelines or confined bays. Portions of any of these lakes may be clear and fully support recreational uses

Status & Extent of Bloom Categories

Suspicious-what does this mean?

Conditions at these waterbodies fit the description of a blue green algae bloom, based on visual observations and/or digital photographs.

It is not known if there are harmful toxins in the water

Blooms may be present in all or part of the waterbody. Laboratory analysis has not been done to determine if this is a blue-green algae bloom. Blue green algae are irritants to some people even if toxins are not present.

Confirmed-what does this mean?

Water sampling results have confirmed the presence of a blue green algae bloom which may produce toxins.

Waterbodies noted with "HIGH TOXINS" indicate that laboratory data suggests that there are toxins in enough quantities to cause health effects when people and animals come in contact with the water through swimming or drinking.

Waterbodies noted as "open water" indicate that the bloom is widespread and bloom conditions may be worse along shorelines and within recreational areas. Special precautions should be taken in situations when "HIGH TOXINS" are also reported with "open water" because toxins are likely to be higher in shoreline areas.

Blooms and toxins may be present in all or part of the waterbody.

Extent of Bloom-what does this mean?

The extent of the bloom is an estimate of the size of the bloom within the waterbody and is recorded by monitoring program staff or from public reports.

Small Localized: Blooms affecting a small area of the Lake, limited from one to several neighboring properties.

Large Localized: Blooms affecting many properties within an entire cove, along a large segment of the shoreline, or in a specific region of the lake.

Widespread: Blooms affecting the entire lake, a large portion of the lake, or most to all of the shoreline.

Open water: Sample was collected near the center of the lake and may indicate that the bloom is widespread. Algae or toxin levels in some shoreline areas could be highly elevated.

What should I do?

  • If you believe you have been exposed to a bloom and are experiencing symptoms, seek immediate medical attention and contact the local health department.
  • If people or pets are exposed to a bloom, rinse with clean water.
  • People and pets should stay out of any water that is discolored, has surface scums or shows other evidence of a bloom.
  • Don't drink the water in or near the bloom- boiling water does not protect people or pets from blue-green algal toxins.
  • Anglers should not eat fish caught from areas that look like spilled paint or pea soup.
  • For more information about health concerns visit http://www.health.ny.gov and search "blue green algae".
  • More information about blue-green algae blooms.

Suspect a blue-green algae bloom?

If you suspect that you have seen a blue-green algae bloom or you, your family, or pet has been in contact with a blue-green algae bloom follow the 'What should I do?' advice and please fill out and submit the Suspicious Algae Bloom Report Form (PDF, 527 KB).

You are encouraged to include digital photographs as email attachments with the form (close-up, and landscape showing extent and location of bloom). If possible, please include an image from an online mapping application such as Google, Bing or Yahoo Maps, with a marker at the bloom location.

You may also contact your regional DEC office or contact:

Scott Kishbaugh, Division of Water
Phone: (518) 402-8179
Email the Division of Water

Want to receive weekly updates?

Sign up to the Division of Water's Making Waves email listserve to receive weekly updates on blue-green algae bloom notices in New York waterbodies. Making Waves also provides information about new and important water-related issues, events and news, which could affect your watershed.

To subscribe to the MakingWaves listserve Subscribe to GovDelivery ,and enter the requested information. When you reach the topics page, check the "Making Waves" box under the "Water" category. You can expect to receive an email from this listserve about once a week. We encourage you to subscribe and to share the listserve with others.