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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Franklin Water Systems 3

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND120ND
2013ND60ND
2014ND80ND
2015ND120ND
2016ND20ND
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
2012-03-26AB85133ND
2012-03-26AB85132ND
2012-03-26AB85131ND
2012-06-25AB93689ND
2012-06-25AB93688ND
2012-06-25AB93687ND
2012-09-27AC02122ND
2012-09-27AC02133ND
2012-09-27AC02134ND
2012-12-171212815003ND
2012-12-171212815001ND
2012-12-171212815002ND
2013-06-24Q1302735009ND
2013-06-24Q1302735008ND
2013-06-24Q1302735007ND
2013-09-23Q1307918003ND
2013-12-23Q1319509004ND
2013-12-23Q1319509003ND
2014-03-24Q1409514001ND
2014-03-24Q1409514002ND
2014-06-24Q1423214006ND
2014-06-24Q1423214005ND
2014-09-10Q1443324002ND
2014-09-10Q1443324001ND
2014-12-18Q1460543002ND
2014-12-18Q1460543001ND
2015-03-25Q1511062003ND
2015-03-25Q1511062002ND
2015-03-25Q1511062001ND
2015-06-23Q1523303003ND
2015-06-23Q1523303001ND
2015-06-23Q1523303002ND
2015-09-17Q1536296003ND
2015-09-17Q1536296002ND
2015-09-17Q1536296001ND
2015-11-18Q1545492003ND
2015-11-18Q1545492002ND
2015-11-18Q1545492001ND
2016-12-13Q1654192018ND
2016-12-13Q1654192019ND