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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

South Tahoe PUD - Main

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

 

71

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015ND120ND
2016ND110ND
2017ND120ND
2018ND120ND
2019ND120ND

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
2014-06-182531-060-1225ND
2014-06-182531-058-0852ND
2014-06-182531-050-1006ND
2014-06-182531-042-1223ND
2014-06-182531-023-1131ND
2014-06-202531-036-1606ND
2014-07-162531-057-0947ND
2014-07-162531-054-1123ND
2014-07-162531-052-1030ND
2014-07-162531-012-1055ND
2014-08-202531-016-1241ND
2014-08-202531-006-0953ND
2015-06-242531-060-0850ND
2015-06-242531-058-0820ND
2015-06-242531-023-0920ND
2015-06-242531-050-0905ND
2015-06-242531-042-0820ND
2015-06-242531-036-0938ND
2015-07-222531-052-0921ND
2015-07-222531-057-0836ND
2015-07-222531-054-0853ND
2015-07-222531-012-0951ND
2015-08-042531-006-0922ND
2015-08-042531-016-1028ND
2016-06-232531-036-1215ND
2016-06-232531-023-1241ND
2016-06-232531-058-1135ND
2016-06-232531-050-1105ND
2016-06-232531-060-1025ND
2016-06-232531-042-0955ND
2016-07-202531-012-0906ND
2016-07-202531-057-0930ND
2016-07-202531-054-0950ND
2016-08-242531-016-0923ND
2016-08-242531-006-0917ND
2017-06-132531-060-1106ND
2017-06-132531-058-0832ND
2017-06-132531-036-1143ND
2017-06-132531-023-0955ND
2017-06-132531-042-1036ND
2017-06-132531-050-0906ND
2017-07-112531-054-0849ND
2017-07-112531-012-1255ND
2017-07-112531-052-1215ND
2017-07-112531-057-1127ND
2017-08-092531-006-0939ND
2017-08-092531-016-1104ND
2018-06-052531-060-1318ND
2018-06-052531-023-1344ND
2018-06-122531-006-1011ND
2018-07-182531-036-0910ND
2018-07-182531-058-0948ND
2018-07-182531-050-1013ND
2018-07-182531-057-1023ND
2018-07-182531-054-1122ND
2018-07-222531-012-0940ND
2018-08-222531-016-1113ND
2018-08-222531-052-1016ND
2018-08-222531-042-1000ND
2019-06-182531-016-1319ND
2019-06-182531-042-0933ND
2019-06-182531-060-1035ND
2019-06-182531-012-1000ND
2019-07-102531-036-1549ND
2019-07-242531-006-1531ND
2019-08-072531-058-1030ND
2019-08-072531-054-1135ND
2019-08-072531-050-1108ND
2019-08-202531-023-1000ND
2019-08-202531-052-0934ND
2019-10-222531-057-0937ND