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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

South Walton Utility Company

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
2013ND80ND
2014ND80ND
2015ND80ND
2016ND110ND
2017ND80ND

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 Result
2012-06-25ND
2012-06-25ND
2012-06-25ND
2012-06-25ND
2012-06-25ND
2012-06-25ND
2012-06-25ND
2012-06-26ND
2013-06-19ND
2013-06-19ND
2013-06-19ND
2013-06-19ND
2013-06-19ND
2013-06-19ND
2013-06-19ND
2013-06-19ND
2014-04-08ND
2014-04-08ND
2014-04-08ND
2014-04-08ND
2014-04-08ND
2014-04-08ND
2014-04-08ND
2014-04-08ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2015-05-20ND
2016-01-12ND
2016-01-12ND
2016-01-12ND
2016-01-13ND
2016-01-13ND
2016-01-13ND
2016-01-13ND
2016-01-13ND
2016-01-13ND
2016-01-13ND
2016-01-13ND
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-11ND