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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Middletown Water Department

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

 

44

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
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND100ND
2019ND260ND

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
2014-12-30S612354ND
2014-12-30S612353ND
2015-03-04S536761ND
2015-03-04S536760ND
2016-10-11S719497ND
2016-10-11S719496ND
2017-12-26S782284ND
2017-12-26S782283ND
2018-09-04S831309ND
2018-09-04S831308ND
2018-10-01S831311ND
2018-10-01S831310ND
2018-11-06S831313ND
2018-11-06S831312ND
2018-12-03S850905ND
2018-12-03S850904ND
2018-12-04S851985ND
2018-12-04S851984ND
2019-01-02S852007ND
2019-01-02S852006ND
2019-02-05S852028ND
2019-02-05S852029ND
2019-03-05S852052ND
2019-03-05S852051ND
2019-04-02S852074ND
2019-04-02S852073ND
2019-05-07S852096ND
2019-05-07S852095ND
2019-06-04S852118ND
2019-06-04S852117ND
2019-07-02S891110ND
2019-07-02S891109ND
2019-08-06S891003ND
2019-08-06S891002ND
2019-09-03S891025ND
2019-09-03S891024ND
2019-10-01S891047ND
2019-10-01S891046ND
2019-10-10S920205ND
2019-10-10S920204ND
2019-11-06S891071ND
2019-11-06S891070ND
2019-12-03S891098ND
2019-12-03S891099ND