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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Fort Bend County MUD 25

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND20ND
2015ND20ND
2016N/A00N/A
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
2012-03-20AB84478ND
2012-03-20AB84479ND
2012-03-20AB84481ND
2013-02-28AC11876ND
2013-02-28AC11877ND
2013-02-28AC11871ND
2014-01-16AC39190ND
2014-01-16AC39185ND
2015-02-04AC79121ND
2015-02-04AC79120ND