Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Nitrite

Bath Municipal Water Works

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

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND60ND
2016ND60ND
2017ND60ND
2018ND60ND
2019ND70ND

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
2014-04-15ND
2014-09-16ND
2014-11-11ND
2014-11-11ND
2014-11-11ND
2015-02-1012439346ND
2015-04-0912671454ND
2015-04-0912671452ND
2015-04-0912671456ND
2015-07-3013053668ND
2015-11-1213553186ND
2016-02-1613908220ND
2016-06-2714460423ND
2016-06-3014460517ND
2016-06-3014460515ND
2016-09-2314964421ND
2016-11-2915273224ND
2017-03-2115841449ND
2017-05-1516148729ND
2017-08-1816618710ND
2017-09-0716777407ND
2017-09-0716777405ND
2017-11-2717068062ND
2018-03-15ND
2018-03-15ND
2018-03-15ND
2018-05-24ND
2018-09-19ND
2018-11-27ND
2019-02-04ND
2019-02-04ND
2019-02-04ND
2019-04-03ND
2019-08-07ND
2019-10-02ND
2019-10-02ND