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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Brereton Manor Retirement Home

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

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
2014-01-14206829-01ND
2014-04-03208943-01ND
2014-07-22212438-01ND
2014-10-14215465-01ND
2015-01-1312376866ND
2015-04-1412724120ND
2015-07-0613110326ND
2015-10-0513486106ND
2016-01-1213845245ND
2016-04-1914219011ND
2016-07-1914702500ND
2016-10-1815196748ND
2017-02-2115763396ND
2017-04-0616060715ND
2017-09-0716848711ND
2017-10-0516994435ND
2018-01-15264224-02ND
2018-05-04269346-02ND
2018-08-07275515-01ND
2018-12-03282410-02ND
2019-01-14284619-01ND
2019-04-04288934-02ND
2019-08-06297362-02ND
2019-10-14302258-02ND