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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Pace Water System 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.

 

65

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND110ND
2014ND110ND
2015ND110ND
2016ND110ND
20170.00227 ppm111ND - 0.0250 ppm

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
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2012-07-10ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2013-07-16ND
2014-05-06ND
2014-05-06ND
2014-05-06ND
2014-05-06ND
2014-05-06ND
2014-05-06ND
2014-05-13ND
2014-05-13ND
2014-05-13ND
2014-05-13ND
2014-05-13ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2017-03-16ND
2017-03-160.0250 ppm
2017-03-16ND
2017-03-16ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND