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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Clarendon Acres Water 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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND50ND
2016ND50ND
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
2014-03-181409817ND
2014-03-181409817ND
2014-06-171421783ND
2014-09-231437656ND
2014-12-181446622ND
2015-03-1712540540ND
2015-06-3012912373ND
2015-09-2213292156ND
2015-10-2713416100ND
2015-10-2713416076ND
2016-03-2914011592ND
2016-06-2814442003ND
2016-09-2214945341ND
2016-12-2715404058ND
2016-12-2715404060ND
2017-03-2815825796ND
2017-06-2916291794ND
2017-09-2816759515ND
2017-12-2917192277ND
2018-03-29T8D0004ND
2018-03-29T8D0004ND
2018-09-258I26125-01ND
2018-12-28T8L0008-02ND
2019-03-28T9C0006-02ND
2019-06-27T9F0020-03ND
2019-09-30T9I0038-03ND
2019-12-23T9L1313-01ND