nassau, NY

Total Incidents:
55
Last Incident:
July 01, 2017

Note: Just because the latest incident is in 2017 or 2018 doesn’t mean your water is free of contaminants! There is a considerable lag between when data is collected and when it is published by the EPA.

Contaminants

All Incidents

Water System Type Measure Violation Effects Begin Date
PLAINVIEW WD cis-1,2-Dichloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems 2017-07-01
PLAINVIEW WD Tetrachloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems; increased risk of cancer 2017-07-01
PLAINVIEW WD cis-1,2-Dichloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems 2017-07-01
PLAINVIEW WD Tetrachloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems; increased risk of cancer 2017-07-01
PLAINVIEW WD cis-1,2-Dichloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems 2017-07-01
PLAINVIEW WD Tetrachloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems; increased risk of cancer 2017-07-01
PLAINVIEW WD Tetrachloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems; increased risk of cancer 2017-07-01
PLAINVIEW WD cis-1,2-Dichloroethylene MCL, Average Maximum Contaminant Level Violation Liver problems 2017-07-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-08-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-08-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-08-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-08-01
BAYVILLE (V) Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-10-01
BAYVILLE (V) Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-10-01
BAYVILLE (V) Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-10-01
BAYVILLE (V) Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-10-01
LONG BEACH CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-07-01
LONG BEACH CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-07-01
LONG BEACH CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-07-01
LONG BEACH CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2014-07-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-08-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-08-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-08-01
FRANKLIN SQUARE WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-08-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-07-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-07-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-07-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2013-07-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-11-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-11-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-11-01
WESTBURY WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-11-01
GLEN COVE CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-09-01
GLEN COVE CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-09-01
GLEN COVE CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-09-01
GLEN COVE CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-09-01
WA OF WESTERN NASSAU Coliform (TCR) MCL, Acute (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-07-01
WA OF WESTERN NASSAU Coliform (TCR) MCL, Acute (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-07-01
WA OF WESTERN NASSAU Coliform (TCR) MCL, Acute (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-07-01
WA OF WESTERN NASSAU Coliform (TCR) MCL, Acute (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-07-01
PORT WASHINGTON WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-08-01
PORT WASHINGTON WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-08-01
PORT WASHINGTON WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-08-01
PORT WASHINGTON WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-08-01
WILLISTON PARK (V) Lead MPL Non-Compliance Treatment Technique Violation Infants and children: Delays in physical or mental development; children could show slight deficits in attention span and learning abilities 2007-01-01
WILLISTON PARK (V) Lead MPL Non-Compliance Treatment Technique Violation Infants and children: Delays in physical or mental development; children could show slight deficits in attention span and learning abilities 2007-01-01
WILLISTON PARK (V) Lead MPL Non-Compliance Treatment Technique Violation Infants and children: Delays in physical or mental development; children could show slight deficits in attention span and learning abilities 2007-01-01
WILLISTON PARK (V) Lead MPL Non-Compliance Treatment Technique Violation Infants and children: Delays in physical or mental development; children could show slight deficits in attention span and learning abilities 2007-01-01
JERICHO WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1997-12-01
GLEN COVE CITY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1997-08-01
ROSLYN WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1994-09-01
JERICHO WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1993-07-01
JERICHO WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1993-04-01
JERICHO WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1993-04-01
JERICHO WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 1993-02-01