Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Nitrite

Lido-point Lookout Water District

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

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND50ND
2016ND120ND
2017ND100ND
2018ND120ND
2019ND230ND

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
2014-01-1397861-01132014ND
2014-01-1397860-01132014ND
2014-04-1498417-04142014ND
2014-04-1498416-04142014ND
2014-07-2199159-07212014ND
2014-07-2199158-07212014ND
2014-11-17100003-PRIND
2014-11-17100004-PRIND
2014-11-24100068-11242014ND
2014-11-24100067-11242014ND
2015-01-26100436ND
2015-01-26100437ND
2015-03-02100542-03022015-ND
2015-03-02100543-03022015-ND
2015-03-02100541-03022015-ND
2016-01-131601798-006AND
2016-01-211601E14-004AND
2016-04-201604150-002AND
2016-04-201604150-001AND
2016-06-291606S43-004-PRIND
2016-06-291606S43-006-PRIND
2016-06-291606S43-007-SECND
2016-06-291606S43-005-PRIND
2016-07-191607E90-006AND
2016-07-191607E90-005AND
2016-10-18702299008ND
2016-10-18702299007ND
2017-03-141603A71-001ND
2017-05-027017470003ND
2017-05-027017470002-PRIND
2017-05-027017470001-PRIND
2017-05-177018917002ND
2017-06-017020061001-PRIND
2017-06-017020061003-PRIND
2017-06-017020061002-PRIND
2017-07-207024740008ND
2017-07-207024740009ND
2018-02-217043558009ND
2018-02-217043558008ND
2018-04-177048700002ND
2018-04-177048700001ND
2018-05-087050980002-SECND
2018-05-087050980003-SECND
2018-05-087050980001-SECND
2018-06-147054970001-SECND
2018-06-147054970003-SECND
2018-06-147054970002-SECND
2018-07-107057674002ND
2018-07-10705767400ND
2019-01-037075453003-SECND
2019-01-037075453001-SECND
2019-01-037075453002-SECND
2019-01-237077393007ND
2019-01-237077393006ND
2019-02-057078359001-SECND
2019-02-057078359003-SECND
2019-02-057078359002-SECND
2019-03-147082345003-SECND
2019-03-147082345002-SECND
2019-03-147082345001-SECND
2019-04-047084642001-SECND
2019-04-047084642003-SECND
2019-04-047084642002-SECND
2019-04-167085980010ND
2019-04-167085980011ND
2019-05-027087916003-PRIND
2019-05-027087916002-PRIND
2019-05-027087916001-PRIND
2019-07-097096746006ND
2019-07-097096746005ND
2019-10-1770108828006ND
2019-10-1770108828005ND