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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Fitzgerald

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

 

30

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
2017ND50ND
2018ND50ND
2019ND50ND

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2014-01-15AI26765ND
2014-01-15AI26764ND
2014-01-15AI26763ND
2014-01-15AI26762ND
2014-01-15AI26761ND
2015-01-28AI63678ND
2015-01-28AI63677ND
2015-01-28AI63676ND
2015-01-28AI63675ND
2015-01-28AI63674ND
2016-05-23AJ12712ND
2016-05-23AJ12716ND
2016-05-23AJ12715ND
2016-05-23AJ12714ND
2016-05-23AJ12713ND
2017-03-07AJ47697ND
2017-03-07AJ47696ND
2017-03-07AJ47695ND
2017-03-07AJ47694ND
2017-03-07AJ47693ND
2018-03-14AJ85989ND
2018-03-14AJ85988ND
2018-03-14AJ85987ND
2018-03-14AJ85986ND
2018-03-14AJ85985ND
2019-02-12AK11096ND
2019-02-12AK11105ND
2019-02-12AK11104ND
2019-02-12AK11102ND
2019-02-12AK11101ND