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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

City of Edmond - Arcadia Lake

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013N/A00N/A
2014ND30ND
2015ND10ND
20160.00194 ppm195ND - 0.00963 ppm
2017ND30ND

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
2012-12-212L21012-03ND
2012-12-212L21012-02ND
2012-12-212L21012-01ND
2014-12-174L17093-06ND
2014-12-174L17093-04ND
2014-12-174L17093-01ND
2015-03-301382834ND
2016-04-281486760ND
2016-04-281486767ND
2016-04-281486766ND
2016-04-281486765ND
2016-04-281486764ND
2016-04-281486763ND
2016-04-281486762ND
2016-04-281486761ND
2016-04-281486759ND
2016-04-281486758ND
2016-04-281486757ND
2016-05-0514892060.00936 ppm
2016-05-0514892050.00829 ppm
2016-05-051489204ND
2016-05-051489203ND
2016-05-2614947930.00390 ppm
2016-05-2614947920.00576 ppm
2016-05-2614947910.00963 ppm
2016-07-281511294ND
2017-03-207C20037-01ND
2017-03-217C21038-04ND
2017-03-217C21038-05ND