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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Averydale Mutual 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013N/A00N/A
2014ND30ND
2015ND10ND
2016N/A00N/A
2017ND40ND

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
2012-07-243761-003-1150ND
2012-07-243761-004-1159ND
2012-07-243761-006-1132ND
2014-07-153761-001-1357ND
2014-07-153761-003-1334ND
2014-07-153761-006-1415ND
2015-02-173761-004-1414ND
2017-07-183761-001-1247ND
2017-07-183761-003-1215ND
2017-07-183761-004-1225ND
2017-07-183761-006-1253ND