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New Hampshire Department of Environmental Services
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FOR IMMEDIATE RELEASE
DATE: July 26, 2019
CONTACT: Amanda McQuaid (603) 271-0698 (O), 848-8094 (C)
des.nh.gov
twitter.com/NHDES

State REMOVES Cyanobacteria Advisory for Greenwood Pond in Kingston, NH

Concord, NH – The New Hampshire Department of Environmental Services (DES) has REMOVED a cyanobacteria advisory issued on 7/26/2019. The advisory was issued based on photos showing large surface globs of blue-green (cyano) bacteria. Samples collected 7/30/2019 from the beach and boat revealed that the cyanobacteria were Oscillatoria/Planktothrix. While the bloom has dissipated and is not visible from the beach and boat launch, DES advises that lake-goers should look out for green surface accumulations. Please continue to monitor your individual shoreline for changing conditions.

NHDES monitors public beaches and public waters of the state for cyanobacteria. Once a cyanobacteria advisory has been issued, NHDES returns to affected waterbodies weekly until the cyanobacteria standards are again met. NHDES advises lake users to avoid contact with the water in areas experiencing elevated cyanobacteria cell conditions. NHDES also advises pet owners to keep their pets out of any waters that have a cyanobacteria bloom.

This advisory was not based on a toxin evaluation and was intended as a precautionary measure for short term exposure. Cyanobacteria are natural components of water bodies worldwide, though blooms and surface scums may form when excess nutrients are available to the water. Some cyanobacteria produce toxins that are stored within the cells and released upon cell death. Toxins can cause both acute and chronic health effects that range in severity. Acute health effects include irritation of skin and mucous membranes, tingling, numbness, nausea, vomiting, seizures and diarrhea. Chronic effects may include liver and central nervous system damage. Be cautious of lake water that has a surface scum, changes colors, or appears to have green streaks or blue-green flecks aggregating along the shore.

The advisory went into effect on July 26, 2019 and was removed on July 30, 2019.

Visit the NHDES Beach Program website for photos and more information about cyanobacteria at www.des.nh.gov/organization/divisions/water/wmb/beaches/index.htm
Updates on advisories and warnings may be obtained at www4.des.state.nh.us/WaterShed_BeachMaps/WaterShed_BeachMaps.aspx
Follow the Beaches twitter feed:
twitter.com/NHDES_Beaches

If you notice anything resembling cyanobacteria, please refrain from wading, swimming, or drinking the water. Keep all pets out of the water and contact NHDES immediately. Please call NHDES to report a cyanobacteria bloom at (603) 848-8094.




NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

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