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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Sands Point

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

 

228

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND10ND
2016ND170ND
2017ND680ND
2018ND700ND
2019ND670ND

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
2014-11-181411C18-003-PRIND
2014-11-181411C18-004-PRIND
2014-11-181411C18-002-PRIND
2014-11-181411C18-005-PRIND
2014-11-181411C18-001-PRIND
2015-10-201510F76-001ND
2016-09-151609D36-001-PRIND
2016-11-16704726005-PRIND
2016-11-21705099002ND
2016-11-21705099005ND
2016-11-21705099003ND
2016-11-21705099001ND
2016-11-21705099004ND
2016-11-21705099006ND
2016-12-0175820005-PRIND
2016-12-01705820001-POCSND
2016-12-20707353003ND
2016-12-20707353005ND
2016-12-20707353001ND
2016-12-202902852ND
2016-12-20707353002ND
2016-12-20707353004ND
2016-12-2070735003ND
2017-02-287012272005ND
2017-02-287012272003ND
2017-02-287012272001ND
2017-02-287012272004ND
2017-02-287012272002ND
2017-03-217013839001-PRIND
2017-03-287014322003ND
2017-03-287014322002AND
2017-03-287014322001-POCSND
2017-03-287014322004ND
2017-03-287014322005ND
2017-05-117018457003-PRIND
2017-05-117018457003-POCSND
2017-05-187019036001-PRIND
2017-05-237019344005ND
2017-05-237019344001ND
2017-05-237019344004ND
2017-05-237019344002ND
2017-05-237019344003ND
2017-05-237019344006ND
2017-06-277022541004ND
2017-06-277022541002ND
2017-06-277022541005ND
2017-06-277022541001ND
2017-06-277022541003ND
2017-06-277022541006ND
2017-07-257025191001ND
2017-07-257025191005ND
2017-07-257025191006ND
2017-07-257025191004ND
2017-07-257025191002ND
2017-07-257025191003ND
2017-08-217027782001ND
2017-08-217027782002ND
2017-08-217027782005ND
2017-08-217027782006ND
2017-08-217027782003ND
2017-08-217027782004ND
2017-09-257030950002-POCSND
2017-09-257030950003-POCSND
2017-09-25703950001-POCSND
2017-09-257030950004-POCSND
2017-09-257030950001-POCSND
2017-09-252902852-POCSND
2017-09-257030950005ND
2017-09-257030950006-POCSND
2017-10-247033866002ND
2017-10-247033866001ND
2017-10-247033866003ND
2017-10-247033866005ND
2017-10-247033866006ND
2017-10-247033866004ND
2017-11-147035726003-POCSND
2017-11-147035726001-PRIND
2017-11-147035726002-POCSND
2017-11-147035726005-POCSND
2017-11-147035726006-POCSND
2017-11-147035726001-POCSND
2017-11-287036648003ND
2017-11-287036648001ND
2017-11-287036648004ND
2017-11-287036648005ND
2017-11-287036648002ND
2017-12-267039076003ND
2017-12-267039076001ND
2017-12-267039076004ND
2017-12-267039076005ND
2017-12-267039076002ND
2018-01-227040994002ND
2018-01-227040994001ND
2018-01-227040994004ND
2018-01-227040994003ND
2018-01-227040994005ND
2018-02-207043417003ND
2018-02-207043417004ND
2018-02-207043417002ND
2018-02-207043417001ND
2018-02-207043417006ND
2018-02-207043417005ND
2018-03-277046375002ND
2018-03-277046375006ND
2018-03-277046375003ND
2018-03-277046375005ND
2018-03-277046375001ND
2018-03-277046375004ND
2018-04-247049410005ND
2018-04-247049410002ND
2018-04-247049410003ND
2018-04-247049410004ND
2018-04-247049410001ND
2018-04-247049410006ND
2018-05-227052463001ND
2018-05-227052463002ND
2018-05-227052463006ND
2018-05-227052463005ND
2018-05-227052463004ND
2018-05-227052463003ND
2018-06-197055484003ND
2018-06-197055484001ND
2018-06-197055484004-GEND
2018-06-197055484005ND
2018-06-197055484002ND
2018-06-197055484006ND
2018-07-177058528001ND
2018-07-177058528004ND
2018-07-177058528002ND
2018-07-177058528005ND
2018-07-177058528003ND
2018-07-177058528006ND
2018-08-217062292005ND
2018-08-217062292002ND
2018-08-217062292001ND
2018-08-217062292004ND
2018-08-217062292006ND
2018-08-217062292003ND
2018-09-187065159004-POCSND
2018-09-187065159006-POCSND
2018-09-187065159003-POCSND
2018-09-187065159005-POCSND
2018-09-187065159002-POCSND
2018-09-187065159001-POCSND
2018-10-167068145002-PRIND
2018-10-167068145006-SECND
2018-10-167068145001-SECND
2018-11-067070185004-PRIND
2018-11-067070185002-SECND
2018-11-197071538006ND
2018-11-197071538004ND
2018-11-197071538002ND
2018-11-197071538005ND
2018-11-197071538007ND
2018-11-197071538003ND
2018-12-187074263002ND
2018-12-187074263003ND
2018-12-187074263006ND
2018-12-187074263001ND
2018-12-187074263004ND
2018-12-187074263005ND
2019-01-157076656005ND
2019-01-157076656006ND
2019-01-157076656003ND
2019-01-157076656001ND
2019-01-157076656002ND
2019-01-157076656004ND
2019-02-207080149002ND
2019-02-207080149006ND
2019-02-207080149005ND
2019-02-207080149001ND
2019-02-207080149003ND
2019-02-207080149004ND
2019-03-197082846003ND
2019-03-197082846002ND
2019-03-197082846006ND
2019-03-197082846007ND
2019-03-197082846005ND
2019-03-197082846004ND
2019-04-167086046005ND
2019-04-167086046006ND
2019-04-167086046003ND
2019-04-167086046007ND
2019-04-167086046002ND
2019-04-167086046004ND
2019-05-217090320003ND
2019-05-217090320005ND
2019-05-217090320004ND
2019-05-217090320002ND
2019-05-217090320006ND
2019-05-217090320001ND
2019-06-187094090001ND
2019-06-187094090005ND
2019-06-187094090003ND
2019-06-187094090004ND
2019-06-187094090002ND
2019-06-187094090006ND
2019-07-167097682006ND
2019-07-167097682003ND
2019-07-167097682007ND
2019-07-167097682004ND
2019-07-167097682005ND
2019-07-167097682002ND
2019-08-2070102090001ND
2019-08-2070102090003ND
2019-08-2070102090002ND
2019-08-2070102090006ND
2019-08-2070102090004ND
2019-08-2070102090005ND
2019-09-1770105251006ND
2019-09-1770105251003-POCSND
2019-09-1770105251005ND
2019-09-1770105251004ND
2019-09-1770105251002-POCSND
2019-09-1770105251001-POCSND
2019-10-1570108488001ND
2019-11-1970112367004ND
2019-11-1970112367002ND
2019-11-1970112367001ND
2019-11-1970112367006ND
2019-11-1970112367003ND
2019-11-1970112367005ND
2019-12-1770115676006ND
2019-12-1770115676005ND
2019-12-1770115676003ND
2019-12-1770115676004ND
2019-12-1770115676001ND
2019-12-1770115676002ND