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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Miller Manor Homeowners Association

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

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
2014-03-14ND
2014-05-15ND
2014-09-23ND
2014-11-11ND
2015-02-2512438087ND
2015-04-1712669941ND
2015-08-2613174259ND
2015-11-1913551677ND
2016-02-0213791809ND
2016-04-0414151229ND
2016-09-2314962138ND
2016-11-2915271309ND
2017-03-2015839513ND
2017-05-0116146699ND
2017-08-1816616584ND
2017-11-2717065985ND
2018-03-19ND
2018-06-25ND
2018-09-19ND
2018-11-27ND
2019-02-04ND
2019-04-03ND
2019-08-07ND
2019-10-02ND