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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Avalon Woods Owners Association Inc.

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

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND100ND
2016ND110ND
2017ND130ND
2018ND120ND
2019ND130ND

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
2014-01-14S546596ND
2014-02-10S542904ND
2014-03-11S507220ND
2014-03-31S553716ND
2014-04-03S553745ND
2014-05-08S570760ND
2014-06-23S576656ND
2014-07-10S579475ND
2014-08-18S588116ND
2014-09-29S588270ND
2014-10-14S590776ND
2014-11-24S590855ND
2014-12-08S588965ND
2015-01-13S590420ND
2015-02-11S603742ND
2015-03-11S616392ND
2015-03-28S799279ND
2015-04-16S619677ND
2015-05-21S631482ND
2015-06-23S632793ND
2015-07-08S641034ND
2015-09-24S646336ND
2015-12-22S661158ND
2016-01-20S661946ND
2016-02-02S660090ND
2016-03-09S665500ND
2016-04-21S669540ND
2016-05-23S690790ND
2016-06-13S691006ND
2016-08-29S709848ND
2016-09-26S693808ND
2016-10-25S694523ND
2016-11-21S694587ND
2016-12-05S694615ND
2017-01-24S695036ND
2017-02-21S725087ND
2017-03-08S725110ND
2017-04-26S738459ND
2017-05-05S750114ND
2017-06-12S740393ND
2017-07-13S751571ND
2017-08-03S751017ND
2017-09-27S757211ND
2017-10-24S763273ND
2017-11-08S750420ND
2017-11-27S763204ND
2017-12-18S781197ND
2018-01-25S782133ND
2018-02-15S783434ND
2018-04-10S790009ND
2018-05-10S799684ND
2018-06-28S799729ND
2018-07-26S799800ND
2018-08-23S813018ND
2018-08-23S782178ND
2018-09-27S825533ND
2018-10-19S825365ND
2018-11-15S768865ND
2018-12-10S756844ND
2019-01-30S860878ND
2019-02-01S856225ND
2019-02-01S856224ND
2019-03-18S860782ND
2019-04-26S878889ND
2019-05-30S883326ND
2019-06-19S887767ND
2019-07-24S896450ND
2019-08-27S848326ND
2019-09-20S909644ND
2019-10-18S920614ND
2019-11-01S920510ND
2019-12-13S921031ND