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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

United Water New York

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

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95

Samples

1

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND490ND
20160.0325 ppm441ND - 1.43 ppm
2017ND10ND
2018ND10ND
2019N/A00N/A

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2015-01-08391834NITND
2015-01-08391836NITND
2015-01-08391835NITND
2015-01-08391838NITND
2015-01-08391837NITND
2015-01-18391833NITND
2015-01-22392708NITND
2015-01-22392705NITND
2015-01-22392707NITND
2015-01-22392706NITND
2015-02-12393813ND
2015-03-24396191NITND
2015-03-25396191ND
2015-03-26396321NITND
2015-03-26396322NITND
2015-04-09396960NITND
2015-04-09396958NITND
2015-04-09396959NITND
2015-04-09396957NITND
2015-06-16401158ND
2015-06-16401158NITND
2015-06-23401545ND
2015-06-23401545NITND
2015-07-01402098NITND
2015-07-02402090NITND
2015-07-09402474NITND
2015-07-15402938NITND
2015-07-15402937NITND
2015-08-24405504ND
2015-08-24405504NITND
2015-08-25405604NITND
2015-08-25405604ND
2015-08-27405687NITND
2015-09-09406318ND
2015-09-09406318NITND
2015-09-10406391NITND
2015-09-10406395NITND
2015-10-07407978NITND
2015-10-08408071NITND
2015-10-08408069NITND
2015-10-08408070NITND
2015-10-17407984NITND
2015-10-18408068NITND
2015-12-02411294NITND
2015-12-17412462NITND
2015-12-17412460NITND
2015-12-17412461NITND
2015-12-22412605NITND
2015-12-22412606NITND
2016-03-23418085NITND
2016-03-23418083NITND
2016-03-29418236NITND
2016-05-06420661NITND
2016-05-06420662NITND
2016-05-23421722NITND
2016-06-22417935NITND
2016-06-27423843NITND
2016-06-28423913NITND
2016-06-29424005ND
2016-06-29424007NITND
2016-06-29424002NITND
2016-07-06424341NITND
2016-07-06424312NITND
2016-07-06424312NITND
2016-07-13424838NITND
2016-07-13424842NITND
2016-07-13424844NITND
2016-07-14424908NITND
2016-07-14424912NITND
2016-07-21425483NITND
2016-07-21425483NITND
2016-07-25425641NITND
2016-07-25425643NITND
2016-07-27425844NITND
2016-07-27425841NITND
2016-07-27425845NITND
2016-07-28425955NITND
2016-07-28425957NITND
2016-07-28425956NITND
2016-07-29426033NITND
2016-08-25427983NITND
2016-08-25427984NITND
2016-09-29430339NITND
2016-10-04430633NITND
2016-10-04430632NITND
2016-10-06430846NITND
2016-10-06430847NITND
2016-10-06430845NITND
2016-10-14431399NIT1.43 ppm
2016-10-17431508NITND
2016-10-17431509NITND
2016-10-18431614NITND
2016-10-18431613NITND
2017-09-29453380ND
2018-06-2518062527-01NITND