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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

United Water NJ

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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211

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
20150.00600 ppm52ND - 0.0200 ppm
20160.00306 ppm4915ND - 0.01000 ppm
20170.00326 ppm4615ND - 0.01000 ppm
20180.00353 ppm514ND - 0.140 ppm
2019ND520ND

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
2014-01-02369528NO2ND
2014-01-02369586NO2ND
2014-02-06371568NO2ND
2014-02-07371751NO2ND
2014-03-06373375NO2ND
2014-04-25376341NO2ND
2014-07-10380890NO2ND
2014-07-11381064NO2ND
2015-02-12393808NO20.01000 ppm
2015-04-09396917NO2ND
2015-04-10397040NO2ND
2015-10-01407607NO20.0200 ppm
2015-10-29409355NO2ND
2016-01-08413348NO2ND
2016-01-14413673NO20.01000 ppm
2016-02-04415035NO20.01000 ppm
2016-02-11415491NO2ND
2016-02-18415912NO2ND
2016-02-25416373NO2ND
2016-03-03416773NO20.01000 ppm
2016-03-10417148NO20.01000 ppm
2016-03-17417560NO20.01000 ppm
2016-03-23417922NO2ND
2016-03-31418376NO2ND
2016-04-01418503NO2ND
2016-04-07418795NO20.01000 ppm
2016-04-14419191NO2ND
2016-04-21419623NO20.01000 ppm
2016-04-28420062NO20.01000 ppm
2016-05-05420509NO20.01000 ppm
2016-05-12421016NO2ND
2016-05-19421521NO2ND
2016-05-26421970NO2ND
2016-06-02422243NO2ND
2016-06-09422788NO20.01000 ppm
2016-06-16423175NO2ND
2016-06-23423608NO20.01000 ppm
2016-06-30424043NO2ND
2016-07-07424378NO2ND
2016-07-14424854NO20.01000 ppm
2016-07-21425379NO2ND
2016-07-26425699NO2ND
2016-07-28425890NO2ND
2016-08-04426399NO20.01000 ppm
2016-08-11426902NO2ND
2016-08-18427454NO20.01000 ppm
2016-08-25427906NO2ND
2016-09-01428296NO2ND
2016-09-08428685NO2ND
2016-09-15429126NO2ND
2016-09-22429692NO2ND
2016-09-29430260NO2ND
2016-11-03432672NO2ND
2016-11-04432802NO2ND
2016-11-10433152NO2ND
2016-11-17433630NO2ND
2016-11-22433963NO2ND
2016-12-01434472NO2ND
2016-12-08434913NO2ND
2016-12-15435410NO2ND
2016-12-22435866NO20.01000 ppm
2016-12-29436141NO2ND
2017-01-05436446NO2ND
2017-01-12436872NO20.01000 ppm
2017-01-13437041NO2ND
2017-01-19437362NO2ND
2017-01-26437780NO2ND
2017-02-02438224NO20.01000 ppm
2017-02-10438695NO2ND
2017-02-16439070NO20.01000 ppm
2017-02-23439472NO2ND
2017-03-02439947NO2ND
2017-03-09440338NO2ND
2017-03-16440648NO2ND
2017-03-23441083NO2ND
2017-03-30441501NO20.01000 ppm
2017-04-06441882NO2ND
2017-04-07442025NO2ND
2017-04-13442357NO2ND
2017-04-20442721NO2ND
2017-04-27443222NO20.01000 ppm
2017-05-04443702NO2ND
2017-05-11444165NO20.01000 ppm
2017-05-18444649NO20.01000 ppm
2017-05-25445079NO20.01000 ppm
2017-07-05447401NO2ND
2017-08-03449512NO20.01000 ppm
2017-08-10450029NO20.01000 ppm
2017-08-17450503NO2ND
2017-08-24451026NO2ND
2017-09-01451513NO2ND
2017-09-07451781NO20.01000 ppm
2017-09-14452232NO2ND
2017-09-21452700NO2ND
2017-09-28453204NO2ND
2017-10-05453700NO2ND
2017-10-12454112NO2ND
2017-10-19454624NO2ND
2017-10-26455130NO20.01000 ppm
2017-11-02455635NO20.01000 ppm
2017-11-09456082NO20.01000 ppm
2017-11-16456597NO2ND
2017-11-22457056NO20.01000 ppm
2017-11-30457458NO2ND
2017-12-07457878NO2ND
2017-12-14458322NO2ND
2017-12-21458881NO2ND
2017-12-28459184NO2ND
2018-01-0418010403-03ND
2018-01-1118011102-03ND
2018-01-1818011803-020.01000 ppm
2018-01-2518012502-03ND
2018-02-0118020103-03ND
2018-02-0818020803-03ND
2018-02-1518021507-030.140 ppm
2018-02-2218022206-03ND
2018-03-0118030102-03ND
2018-03-0818030802-03ND
2018-03-1518031503-03ND
2018-03-2218032206-03ND
2018-04-0518040501-03NO2ND
2018-04-0618040615-01NO2ND
2018-04-1218041202-03NO2ND
2018-04-1918041904-03NO2ND
2018-04-2618042601-03NO2ND
2018-05-0418050304-03NO2ND
2018-05-1018051001-03NO2ND
2018-05-1718051704-03NO2ND
2018-05-2418052405-03NO2ND
2018-05-3118053102-03NO2ND
2018-06-0718060701-03NO2ND
2018-06-1418061404-03NO2ND
2018-06-2118062103-03NO2ND
2018-06-2818062801-03NO2ND
2018-07-0518070508-03ND
2018-07-1218071201-03ND
2018-07-1918071908-03ND
2018-07-2618072604-03ND
2018-08-0218080206-03ND
2018-08-0918080902-03ND
2018-08-1618081603-03ND
2018-08-2318082305-03ND
2018-09-0618090602-03ND
2018-09-1318091301-03ND
2018-09-2018092004-03ND
2018-09-2718092701-03ND
2018-10-0418100403-03ND
2018-10-1118101109-03ND
2018-10-1818101801-03ND
2018-10-2518102509-03ND
2018-11-0118110102-03ND
2018-11-0818110803-03ND
2018-11-1518111403-03ND
2018-11-2018111922-03ND
2018-11-2918112902-03ND
2018-12-0618120604-03ND
2018-12-1318121301-03ND
2018-12-2018122001-030.0200 ppm
2018-12-2718122701-030.01000 ppm
2019-01-0319010303-03ND
2019-01-1019011002-03ND
2019-01-1719011701-03ND
2019-01-2419012407-03ND
2019-02-0719020701-03ND
2019-02-1419021401-03ND
2019-02-2119022101-03ND
2019-02-2819022801-03ND
2019-03-0719030703-03ND
2019-03-1419031407-03ND
2019-03-2119032103-03ND
2019-03-2819032801-03ND
2019-04-0419040402-03ND
2019-04-0419040421-01ND
2019-04-1119041102-03ND
2019-04-1819041801-03ND
2019-04-2519042501-03ND
2019-05-0219050204-03ND
2019-05-0919050902-03ND
2019-05-1619051604-03ND
2019-05-2319052305-03ND
2019-05-3019053001-03ND
2019-06-0619060610-03ND
2019-06-1319061303-03ND
2019-06-2019062001-03ND
2019-06-2719062703-03ND
2019-07-0219070201-03ND
2019-07-1119071101-03ND
2019-07-1819071805-03ND
2019-07-2519072505-03ND
2019-08-0119080101-03ND
2019-08-0819080801-03ND
2019-08-1519081504-03ND
2019-08-2219082201-03ND
2019-08-2919082907-03ND
2019-09-0519090507-03ND
2019-09-1219091202-03ND
2019-09-1919091903-03ND
2019-09-2619092601-03ND
2019-10-0319100302-03ND
2019-10-1019101005-03ND
2019-10-1719101702-03ND
2019-10-2419102409-03ND
2019-10-3119103101-03ND
2019-11-0719110707-03ND
2019-11-1419111411-03ND
2019-11-2119112108-03ND
2019-11-2619112604-03ND
2019-12-0519120502-03ND
2019-12-1219121203-03ND
2019-12-1919121901-03ND
2019-12-2619122602-03ND