Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Nitrite

Awc Valley Forge Crossing Mobile Home Park

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

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND50ND
2017ND50ND
2018ND50ND
2019ND110ND

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
2014-09-092028134004ND
2014-09-092028134002ND
2014-09-092028134005ND
2015-06-0112750200ND
2015-06-0112750202ND
2015-06-0112750204ND
2016-05-0414251490ND
2016-05-0414251513ND
2016-05-0414251515ND
2016-09-1314908746ND
2016-12-2716880782ND
2017-05-0115938073ND
2017-05-0115938075ND
2017-05-0115938077ND
2017-10-0216727549ND
2017-10-2416880784ND
2018-04-032306664001ND
2018-09-182339349001ND
2018-09-182339349005ND
2018-10-302347075001ND
2018-10-302347075002ND
2019-03-223023818001ND
2019-03-223023818002ND
2019-04-163028568002ND
2019-04-163028568003ND
2019-04-163028568001ND
2019-09-093056650001ND
2019-09-093056650002ND
2019-10-043062099001ND
2019-10-043062099002ND
2019-10-223065360001ND
2019-10-223065360002ND