2,4,5-T

New York American Water - Merrick

2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) is a herbicide banned in the U.S. since 1985. It was formerly used on residential and commercial lawns, and occasionally on food crops. 2,4,5-T contained the impurity dioxin, which is highly toxic to people and wildlife.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	ND	16	ND
2019	ND	16	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2018-01-30	38294901	ND
2018-04-27	39224801	ND
2018-04-27	39224701	ND
2018-05-04	38911701	ND
2018-05-04	38911901	ND
2018-06-25	40332901	ND
2018-06-25	40332401	ND
2018-07-23	40697801	ND
2018-07-23	40698001	ND
2018-08-01	39950701	ND
2018-08-01	39950501	ND
2018-10-02	41165501	ND
2018-10-15	41554101	ND
2018-10-15	41553901	ND
2018-10-25	42043601	ND
2018-12-20	42308401	ND
2019-02-25	42605401	ND
2019-03-07	43510501	ND
2019-04-25	43774301	ND
2019-07-22	44672301	ND
2019-07-22	44673401	ND
2019-08-12	45156901	ND
2019-08-12	45158101	ND
2019-08-19	45158201	ND
2019-08-19	45158001	ND
2019-10-29	46139501	ND
2019-10-29	46964701	ND
2019-10-30	46897101	ND
2019-10-30	46897201	ND
2019-11-21	47627301	ND
2019-11-21	47298001	ND
2019-12-05	47298101	ND