The affected beaches include:
- In Mamaroneck: Harbor Island, Beach Point Club, Orienta Beach Club, and Mamaroneck Beach and Yacht Club
- In Rye: Coveleigh Club
- In New Rochelle: Hudson Park Beach, Davenport Club, Greentree Club, and Surf Club
Playland Park and Croton Point are open.
Health officials say the rains cause runoff from stormwater drains and sewers, contaminating the water with harmful bacteria. The department's beach surveillance program will continue to monitor the water quality, and the beaches will reopen when safe levels are reached.