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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Wellborn SUD

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013ND50ND
20140.00500 ppm21ND - 0.01000 ppm
2015ND20ND
2016N/A00N/A
2017N/A00N/A

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
2012-02-01AB79916ND
2012-02-01AB79917ND
2012-03-21AB84775ND
2012-06-18AB93059ND
2012-06-18AB93055ND
2012-09-12AC00724ND
2012-11-011211094001ND
2013-02-061302228002ND
2013-06-12Q1302183012ND
2013-06-12Q1302183006ND
2013-12-12Q1317624013ND
2013-12-12Q1317624010ND
2014-02-13AC42858ND
2014-02-13AC428570.01000 ppm
2015-03-24AC85783ND
2015-03-24AC85784ND