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Harbor Island Beach
WESTCHESTER, NY

CURRENT CONDITIONS   

Harbor Island Beach is a town operated beach and park complex in Mamaroneck, New York. It is open to the public with an increased fee for non-residents.

Harbor Island Beach WESTCHESTER, NY

Dive into the Data

  • F 2022

    In 2022, water quality samples at Harbor Island Beach failed 39% of the time.

    Water quality samples fail when bacteria levels are >104 colony forming units (cfu) of Enterococcus per 100mL.

      62% of samples failed after wet weather

      25% of samples failed after dry weather

        33 total samples were analyzed with 13 wet samples and 20 dry samples.

        The most recent sample date was September 14, 2022.

    Dry Weather
    FRQConsistently Fails
    MAGHigh Intensity Failure

    Wet Weather
    FRQConsistently Fails
    MAGHigh Intensity Failure

  • BACTERIA LEVELS

    Colony Forming Units (CFU) of enterococcus/100 mL

    15 in
    F
    		 2022
    23 in
    D
    		 2021
    13 in
    D+
    		 2020
    16 in
    D
    		 2019
    8 in
    C-
    		 2018
    10 in
    A
    		 2017
    6 in
    C
    		 2016
    10 in
    C-
    		 2015
    14 in
    A+
    		 2014
    18 in
    A+
    		 2013
    16 in
    D+
    		 2012
    21 in
    D
    		 2011
    10 in
    D+
    		 2010
    18 in
    C-
    		 2009
    13 in
    D
    		 2008
    13 in
    C-
    		 2007
    21 in
    B-
    		 2006
    9 in
    B+
    		 2005
    14 in
    B
    		 2004
    19 in
    F
    		 2003
    A
    B
    C
    D
    F
    N/A