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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Newark City PWS

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.

MORE ABOUT THIS CONTAMINANT

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND120ND
2016ND120ND
2017ND120ND
2018ND40ND
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
2015-01-07A150258014ND
2015-02-04A150258019ND
2015-03-04A150231256ND
2015-04-01A150232173ND
2015-05-06A150249043ND
2015-06-03A150273949ND
2015-07-01A150223603ND
2015-08-05A150258017ND
2015-09-02A150258018ND
2015-10-07A150321896ND
2015-11-04A150321897ND
2015-12-02A150294080ND
2016-01-06A160350365ND
2016-02-03A160342726ND
2016-03-02A160368672ND
2016-04-06A160363834ND
2016-05-04A160396614ND
2016-06-01A160396615ND
2016-07-06A160405680ND
2016-08-02A160396617ND
2016-09-07A160418963ND
2016-10-05A160418962ND
2016-11-02A160444544ND
2016-12-07A160448727ND
2017-01-04A170452858ND
2017-02-01A170469484ND
2017-03-01A170471214ND
2017-04-05A170469486ND
2017-05-03A170492518ND
2017-06-07A170469487ND
2017-07-05A170508339ND
2017-08-01A170508345ND
2017-09-06A170527458ND
2017-10-04A170497864ND
2017-11-01A170534706ND
2017-12-06A170469488ND
2018-01-03A180557490ND
2018-02-07A180560853ND
2018-03-07A180575172ND
2018-04-04A180585109ND