Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Nitrite

Mount Hope Nazarene Retirement Community

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND50ND
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
2014-02-17207606-01ND
2014-05-13209980-01ND
2014-07-23212507-01ND
2014-10-21215657-01ND
2015-02-1112486815ND
2015-04-2212721296ND
2015-09-0813361146ND
2015-10-1313483266ND
2016-03-0814072429ND
2016-04-1214215931ND
2016-05-0914369358ND
2016-07-1914698954ND
2016-10-1015193567ND
2017-02-1315760496ND
2017-04-1116056948ND
2017-08-1416690244ND
2017-10-1116991056ND
2018-03-15266911-02ND
2018-04-10268040-02ND
2018-07-20274376-02ND
2018-11-12281420-01ND
2019-01-17284867-02ND
2019-04-04288933-02ND
2019-07-11295491-02ND
2019-10-03301651-02ND