Skip to search box Skip to main content
Text Only Version

Health News

Lake Ronkonkoma Beach Closes to Bathing Grantland Beach Reopens

June 23, 2014


Lake Ronkonkoma Beach Closes to Bathing

Grantland Beach Reopens


Lake Ronkonkoma Beach in the Town of Islip is closed to bathing due to the finding of Cyanobacteria, more commonly known as blue-green algae.


According to Dr. James Tomarken, Commissioner of Health Services, some species of cyanobacteria produce toxins that can cause health problems in humans and animals if exposed to large enough quantities.


Additionally, the beach closure issued Friday, June 20th for Grantland Beach in Strongs Neck has been lifted, as results of recent samples collected show the water quality be suitable for bathing.

For the latest information on affected beaches, call the Bathing Beach HOTLINE at 852-5822, contact the Department's Office of Ecology at 852-5760 during normal business hours, or visit the website at

For more information about blue-green algae, visit the Suffolk County website:



Follow us:

Categories: Health

Suffolk County Government

H. Lee Dennison Bldg

100 Veterans Memorial Hwy
P.O. Box 6100
Hauppauge, NY 11788

Riverhead County Center

County Road 51
Riverhead, NY 11901