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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Myoma Dunes 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.

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29

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
2014ND10ND
2015ND70ND
2016ND50ND
2017ND50ND
2018ND30ND
2019ND80ND

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
2014-11-174790-009-0914ND
2015-11-234790-007-0930ND
2015-11-234790-011-1230ND
2015-11-234790-010-1147ND
2015-11-234790-009-1157ND
2015-11-234790-008-1102ND
2015-11-304790-007-0756ND
2015-11-304790-008-0820ND
2016-11-144790-008-1005ND
2016-11-144790-007-0949ND
2016-11-144790-011-0800ND
2016-11-144790-010-1043ND
2016-11-144790-009-0933ND
2017-11-134790-009-0815ND
2017-11-134790-010-0900ND
2017-11-134790-007-0745ND
2017-11-134790-011-0800ND
2017-11-134790-008-0740ND
2018-11-194790-007-1011ND
2018-11-194790-008-1033ND
2018-12-174790-011-0935ND
2019-04-014790-010-0730ND
2019-11-184790-007-0850ND
2019-11-184790-008-0751ND
2019-11-184790-011-0823ND
2019-11-184790-011-0951ND
2019-11-224790-009-0839ND
2019-11-224790-010-0912ND
2019-11-224790-010-0939ND