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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Milton 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

 

77

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND130ND
2016ND110ND
2017ND130ND
2018ND130ND
2019ND140ND

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
2014-01-30S505670ND
2014-02-27S505683ND
2014-03-27S505631ND
2014-04-30S505575ND
2014-05-29S505568ND
2014-07-31S505642ND
2014-09-02S505641ND
2014-09-25S505647ND
2014-10-29S507435ND
2014-11-25S507440ND
2014-12-10S588981ND
2014-12-10S588980ND
2014-12-11S507444ND
2015-01-27S507448ND
2015-03-02S505610ND
2015-03-31S514386ND
2015-04-28S514394ND
2015-05-05S514398ND
2015-05-29S505699ND
2015-06-18S505593ND
2015-07-16S514402ND
2015-08-13S514406ND
2015-09-29S514411ND
2015-10-22S629190ND
2015-11-24S629220ND
2015-12-16S629224ND
2016-01-13S629228ND
2016-02-25S505598ND
2016-03-16S514415ND
2016-04-21S505602ND
2016-05-25S505705ND
2016-06-23S505709ND
2016-07-20S505584ND
2016-08-25S505588ND
2016-09-14S629194ND
2016-10-19S514371ND
2016-12-20S514379ND
2017-01-19S620714ND
2017-03-15S620718ND
2017-04-18S690489ND
2017-05-24S690459ND
2017-06-14S690494ND
2017-07-13S690464ND
2017-08-15S690504ND
2017-09-13S690468ND
2017-09-15S750406ND
2017-10-24S690509ND
2017-11-13S750421ND
2017-11-21S690513ND
2017-12-13S690518ND
2018-01-23S690474ND
2018-02-14S690479ND
2018-03-14S690483ND
2018-04-25S690488ND
2018-05-16S751883ND
2018-06-20S751887ND
2018-07-11S751891ND
2018-08-28S751865ND
2018-09-18S751869ND
2018-10-17S751873ND
2018-11-14S751877ND
2018-11-19S808783ND
2018-12-13S690521ND
2019-01-17S351053ND
2019-02-13S751902ND
2019-02-20S866519ND
2019-03-21S741126ND
2019-03-26S690526ND
2019-04-24S690531ND
2019-05-29S741105ND
2019-06-19S741110ND
2019-07-29S857283ND
2019-08-27S857288ND
2019-09-30S895782ND
2019-10-17S895788ND
2019-11-19S895752ND
2019-12-23S895757ND