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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

  • D 2019

    In 2019, water quality samples at Harbor Island Beach failed 19% of the time.

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

      36% of samples failed after wet weather

      11% of samples failed after dry weather

        42 total samples were analyzed with 14 wet samples and 28 dry samples.

        The most recent sample date was September 9, 2019.

  • BACTERIA LEVELS

    Colony Forming Units (CFU) of enterococcus/100 mL

    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