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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Country Manor Apts

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
2015ND50ND
2016ND40ND
2017ND40ND
2018ND50ND
2019ND30ND

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
2014-03-1814-D307ND
2014-06-1714-D1181ND
2014-09-0214-D2336ND
2014-12-0914-D3058ND
2015-03-1015-D335ND
2015-03-1015-D334ND
2015-06-2315-D1391ND
2015-08-1115-D2142ND
2015-12-0815-D3032ND
2016-01-2616-D100ND
2016-04-1916-D664ND
2016-09-2016-D2829ND
2016-11-1516-D3302ND
2017-02-1417-D204ND
2017-06-2717-D1540ND
2017-09-2617-D2953ND
2017-12-1217-D3565ND
2018-03-2018-D463ND
2018-05-2218-D1003ND
2018-07-2418-D1899ND
2018-09-2418I0787-01ND
2018-12-1118-D3281ND
2019-03-1219-D232ND
2019-06-1819-D1173ND
2019-10-1519-D2663ND