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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

South Bend Water Works

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.

MORE ABOUT THIS CONTAMINANT

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND100ND
2015N/A00N/A
2016N/A00N/A
2017ND280ND
2018N/A00N/A
2019N/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
2014-05-21318001-04NND
2014-05-21318001-06NND
2014-05-21318001-08NND
2014-05-22318171-03NND
2014-05-22318171-07NND
2014-05-29318435NND
2014-06-05318823-05NND
2014-06-05318823-11NND
2014-06-05318823NND
2014-06-05318823-02NND
2017-02-073632965NND
2017-02-073632963NND
2017-02-073632953NND
2017-02-073632951NND
2017-02-073632949NND
2017-02-083634166NND
2017-02-093635285NND
2017-02-093635283NND
2017-02-17383053NND
2017-02-24383475NND
2017-02-283646157NND
2017-03-083650538NND
2017-03-08384204NND
2017-03-103652023NND
2017-03-10384409NND
2017-03-143653636NND
2017-03-14384557NND
2017-03-203656619NND
2017-03-20384865NND
2017-03-28385351NND
2017-03-283662055NND
2017-03-293663300NND
2017-03-303664182NND
2017-04-183676152NND
2017-06-083709758NND
2017-06-283722055NND
2017-06-293723632NND
2017-07-133731342NND