DEC Announces Hydrographic Dye Study Within Long Island Sound
The New York State Department of Environmental Conservation (DEC), in partnership with the U.S. Food and Drug Administration (FDA), is conducting a hydrographic dye study of wastewater from the outfall of the Village of Greenport Wastewater Treatment Plant to further enhance understanding of the destination of treated effluent discharging into Long Island Sound and continue ensuring the health of New York's shellfish consumers is protected.
The study will track the flow and dispersion of treated wastewater beginning on Monday, October 26 through Friday, October 30, using Rhodamine WT, a water-tracing dye approved for use by the U.S. Environmental Protection Agency (EPA) and will not cause environmental harm. Low concentrations of the dye will be introduced from the Village of Greenport Wastewater Treatment Plant beginning on the morning of Monday, October 26 and will continue for 12.4 hours. This is the only dye injection period scheduled during the five-day study. Due to the dye injection, portions of Long Island Sound may appear discolored and turn red or pink for a brief time. The discoloration may be visible from the shores.
The data generated from the study will be used to assess the required shellfishing closure surrounding the wastewater treatment plant outfall. In addition, this study will enhance emergency readiness and the ability to respond to events related to any potential spills or untreated discharges at the wastewater treatment plant.
For more information on this study, please contact DEC’s Division of Marine Resources Shellfisheries Bureau at (631) 444-0492.
For general shellfishing information, visit DEC's website.
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