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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Southern Nevada Water System

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

 

183

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND240ND
2015ND270ND
2016ND340ND
2017ND360ND
2018ND360ND
2019ND260ND

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
2014-01-1314010141-002ND
2014-01-1314010141-004ND
2014-02-1014020119-002ND
2014-02-1014020119-004ND
2014-03-1014030086-002ND
2014-03-1014030086-004ND
2014-04-0714040087-002ND
2014-04-0714040087-004ND
2014-05-0514050035-002ND
2014-05-0514050035-004ND
2014-06-0314060044-002ND
2014-06-0314060044-004ND
2014-07-2314070408-002ND
2014-07-2314070408-004ND
2014-08-0414070595-002ND
2014-08-0414070595-004ND
2014-09-0214080502-002ND
2014-09-0214080502-004ND
2014-10-0614100035-002ND
2014-10-0614100035-004ND
2014-11-0414110033-002ND
2014-11-0414110033-004ND
2014-12-0114110472-002ND
2014-12-0114110472-004ND
2015-01-0514120546-002ND
2015-01-0514120546-004ND
2015-02-0215010461-002ND
2015-02-0215010461-004ND
2015-03-0215020449-002ND
2015-03-0215020449-004ND
2015-04-0615040041-002ND
2015-04-0615040041-004ND
2015-05-0415040555-001ND
2015-05-0515050026-002ND
2015-05-0515050026-004ND
2015-06-0215060028-002ND
2015-06-0215060028-004ND
2015-07-0615070058-002ND
2015-07-0615070058-004ND
2015-08-0315070653-002ND
2015-08-0315070653-004ND
2015-09-0815090066-002ND
2015-09-0815090066-004ND
2015-09-2815090450-002ND
2015-09-2815090450-004ND
2015-10-0515100029-002ND
2015-10-0515100029-003ND
2015-11-0215110007-002ND
2015-11-0215110007-003ND
2015-12-0115110495-002ND
2015-12-0115110495-003ND
2016-01-0415120509-002ND
2016-01-0415120509-003ND
2016-02-0116010441-002ND
2016-02-0116010441-003ND
2016-03-0116020478-002ND
2016-03-0116020478-003ND
2016-04-0416030498-002ND
2016-04-0416030498-003ND
2016-05-02S1600918001ND
2016-05-0216040465-002ND
2016-05-02S1600918002ND
2016-05-0216040465-003ND
2016-05-02S1600918003ND
2016-06-01S1602026001ND
2016-06-01S1602026002ND
2016-06-01S1602026003ND
2016-07-05S1602500001ND
2016-07-05S1602500002ND
2016-07-05S1602500003ND
2016-08-02S1603059001ND
2016-08-02S1603059002ND
2016-08-02S1603059003ND
2016-09-06S1603882001ND
2016-09-06S1603882002ND
2016-09-06S1603882003ND
2016-10-03S1604610001ND
2016-10-03S1604610002ND
2016-10-03S1604610003ND
2016-11-01S1605299001ND
2016-11-01S1605299002ND
2016-11-01S1605299003ND
2016-12-05S1606031001ND
2016-12-05S1606031002ND
2016-12-05S1606031003ND
2017-01-03S1606725001ND
2017-01-03S1606725002ND
2017-01-03S1606725003ND
2017-02-06S1700066001ND
2017-02-06S1700066002ND
2017-02-06S1700066003ND
2017-03-06S1701111001ND
2017-03-06S1701111002ND
2017-03-20S1701624003ND
2017-04-03S1701907001ND
2017-04-03S1701907002ND
2017-04-03S1701907003ND
2017-05-02S1702196001ND
2017-05-02S1702196002ND
2017-05-02S1702196003ND
2017-06-05S1703025001ND
2017-06-05S1703025002ND
2017-06-05S1703025003ND
2017-07-05S1703967001ND
2017-07-05S1703967002ND
2017-07-05S1703967003ND
2017-08-01S1704597001ND
2017-08-01S1704597002ND
2017-08-01S1704597003ND
2017-09-05S1705334001ND
2017-09-05S1705334002ND
2017-09-05S1705334003ND
2017-10-03S1706292001ND
2017-10-03S1706292002ND
2017-10-03S1706292003ND
2017-11-20S1707078001ND
2017-11-20S1707078002ND
2017-11-20S1707078003ND
2017-12-05S1707874001ND
2017-12-05S1707874002ND
2017-12-05S1707874003ND
2018-01-02S1709113001ND
2018-01-02S1709113002ND
2018-01-16S1800488001ND
2018-02-05S1800959001ND
2018-02-05S1800959002ND
2018-02-05S1800959003ND
2018-03-05S1800047001ND
2018-03-05S1800047002ND
2018-03-05S1800047003ND
2018-04-03S1801672001ND
2018-04-03S1801672002ND
2018-04-03S1801672003ND
2018-05-01S1802314001ND
2018-05-01S1802314002ND
2018-05-01S1802314003ND
2018-06-05S1802979001ND
2018-06-05S1802979002ND
2018-06-05S1802979003ND
2018-07-10S1803721001ND
2018-07-10S1803721002ND
2018-07-10S1803721003ND
2018-08-07S1804533001ND
2018-08-07S1804533002ND
2018-08-07S1804533003ND
2018-09-04S1805353001ND
2018-09-04S1805353002ND
2018-09-04S1805353003ND
2018-10-02S1806129001ND
2018-10-02S1806129002ND
2018-10-02S1806129003ND
2018-11-12S1806808001ND
2018-11-12S1806808002ND
2018-11-12S1806808003ND
2018-12-11S1808173001ND
2018-12-11S1808173002ND
2018-12-11S1808173003ND
2019-01-07S1809752002ND
2019-01-07S1809752003ND
2019-02-12S1900604001ND
2019-02-12S1900604002ND
2019-02-12S1900604003ND
2019-03-12S1900605001ND
2019-03-12S1900605002ND
2019-03-12S1900605003ND
2019-04-09S1900606002ND
2019-04-09S1900606003ND
2019-05-14S1903038002ND
2019-05-14S1903038003ND
2019-06-11S1912497002ND
2019-06-11S1912497003ND
2019-07-09S1911019002ND
2019-07-09S1911019003ND
2019-08-13S1922740002ND
2019-08-13S1922740003ND
2019-09-10S1926801002ND
2019-09-10S1926801003ND
2019-10-08S1947937002ND
2019-10-08S1947937003ND
2019-11-12S1957061002ND
2019-11-12S1957061003ND
2019-12-10S1967024002ND
2019-12-10S1967024003AND