Chemicals that are allowed are:
- copper sulfate for algae;
- diquat for submerged and emergent vegetation;
- low-volatile esters, salts, and amines of 2,4-D for emergent vegetation.
Other chemicals may be authorized when it is evident that their use will conform to the intent and purpose of law and regulations.
For more information, contact:
Division of Environmental Permits
1 Hunter's Point Plaza
47-40 21st Street
Long Island City, NY 11101-5407
Phone: (718) 482-4900