WPCNR SEWER TIMES. From the Westchester County Department of Health. (EDITED) September 13, 2011:

 It has happened again. A sewage plant pump breakdown released a day flow of raw untreated sewage into Mamaroneck Harbor, the Health Department announced today.

The Westchester County Department of Health has issued a boater and beach advisory due to a sewage discharge at the West Basin Pump Station next to Harbor Island Park. The discharge was discovered Monday evening and ended this morning after the county Department of Environmental Facilities repaired a pump that had failed.

The advisory, along with telephone notification to the marinas and beaches, is being made because an estimated 162,000 gallons of untreated sewage entered Long Island Sound due to the pump failure.

As a precaution, Mamaroneck beaches have been advised to remain closed and people who use the waters for recreational purposes should avoid direct contact with the water until further notice at the following Mamaroneck locations: Harbor Island Park Beach, Mamaroneck Beach and Yacht Club, Shore Acres Club, Beach Point Club, Orienta Beach Club, Derecktor Boat Yard, Brewer Post Road Boat Yard Marina, Mamaroneck Municipal Marina, Nichols Yacht Yard, Mamaroneck Boat and Motors, and McMichael’s Boat Yard. 

The county health department is sampling the water today. Once results are received and evaluated, the health department will determine whether to reopen the beaches and lift the advisory.