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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

NJ American Water - Western

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

 

81

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND140ND
2015ND140ND
2016ND140ND
2017ND140ND
2018ND130ND
2019ND120ND

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
2014-01-0824566301ND
2014-06-1224565201ND
2014-06-1224573001ND
2014-06-1224566701ND
2014-06-1224566901ND
2014-06-1224569401ND
2014-06-3024572701ND
2014-07-2426697101ND
2014-07-2424569001ND
2014-07-3024568601ND
2014-07-3024572801ND
2014-07-3124569101ND
2014-07-3124569601ND
2014-09-2224572201ND
2015-01-1227863701ND
2015-01-2827865301ND
2015-01-2927866101ND
2015-01-2927865901ND
2015-01-2927865801ND
2015-03-2628341001ND
2015-03-2628343601ND
2015-07-2329729601ND
2015-07-2729732201ND
2015-07-2829732401ND
2015-07-2829732101ND
2015-07-3029727001ND
2015-07-3029725401ND
2015-09-2427868201ND
2016-01-0431135401ND
2016-01-2031137501ND
2016-01-2031139701ND
2016-03-1731543801ND
2016-03-1731542301ND
2016-06-1431818401ND
2016-07-1232853501ND
2016-07-1232851701ND
2016-07-1232850301ND
2016-07-1232853401ND
2016-10-0533391101ND
2016-10-0633392401ND
2016-10-1133391001ND
2016-11-0831136901ND
2017-01-0534460001ND
2017-01-0934461901ND
2017-03-0634462601ND
2017-03-0735048701ND
2017-03-0735045001ND
2017-03-3035355401ND
2017-06-2736533601ND
2017-07-2536969501ND
2017-07-2536969401ND
2017-07-2536527701ND
2017-07-2535352901ND
2017-08-2937191101ND
2017-08-3037191001ND
2017-08-3037193601ND
2018-01-1038457001ND
2018-04-2438457901ND
2018-04-2438460201ND
2018-04-2438453501ND
2018-04-2438457401ND
2018-04-2438461001ND
2018-04-2438460901ND
2018-04-2538457601ND
2018-08-0240453901ND
2018-08-0240463801ND
2018-08-0240463701ND
2018-08-2840461101ND
2018-09-1039787301ND
2019-01-2342650701ND
2019-01-2342645701ND
2019-01-2842650901ND
2019-01-2842647501ND
2019-01-2942650101ND
2019-01-2942649901ND
2019-01-2942647701ND
2019-02-0543293801ND
2019-08-2742650301ND
2019-08-2742653701ND
2019-08-2742653501ND
2019-08-2842653401ND