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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Santa Fe ID

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.

 

22

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
2014ND40ND
2015ND40ND
2016ND20ND
2017ND40ND
2018ND40ND
2019ND40ND

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
2014-03-139590-003-0930ND
2014-06-189590-003-0800ND
2014-09-179590-003-0800ND
2014-12-179590-003-0900ND
2015-03-199590-003-0945ND
2015-06-229590-003-0900ND
2015-09-239590-003-0745ND
2015-12-159590-003-0730ND
2016-03-309590-003-0600ND
2016-06-139590-003-0800ND
2017-03-159590-003-1000ND
2017-08-239590-003-0800ND
2017-09-129590-003-1000ND
2017-12-129590-003-0700ND
2018-03-079590-003-0710ND
2018-06-199590-003-0900ND
2018-10-229590-003-0830ND
2018-12-119590-003-0922ND
2019-03-129590-003-0830ND
2019-06-059590-003-0800ND
2019-09-179590-003-1007ND
2019-12-109590-003-0931ND