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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Shadyside Mobile Home Park

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
2014ND40ND
2015ND50ND
2016ND40ND
2017ND50ND
2018ND40ND
2019ND50ND

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
2014-01-22207065-01ND
2014-04-21209354-01ND
2014-07-22212439-01ND
2014-10-16215552-01ND
2015-01-2012281351ND
2015-04-2112627318ND
2015-07-2913006762ND
2015-08-1813129716ND
2015-10-2013383423ND
2016-01-1913746916ND
2016-04-1814096057ND
2016-07-2114562126ND
2016-10-1815069072ND
2017-01-1215510333ND
2017-04-1815929247ND
2017-07-1816406168ND
2017-10-3116873198ND
2017-11-2117016834ND
2018-01-16264284-02ND
2018-04-25268883-02ND
2018-07-26274839-02ND
2018-10-16280011-02ND
2019-01-15284663-02ND
2019-04-16289632-02ND
2019-07-22296244-04ND
2019-10-14302218-02ND
2019-10-17914093ND