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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

City of Seal Beach

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND50ND
2014ND40ND
2015ND20ND
2016ND20ND
2017ND20ND

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2012-01-244417-002-0800ND
2012-01-244417-001-0820ND
2012-02-144417-009-0800ND
2012-05-094417-003-0740ND
2013-02-064417-002-0825ND
2013-02-074417-009-1410ND
2013-02-274417-001-0835ND
2013-10-304417-003-0800ND
2013-12-034417-003-0810ND
2014-01-304417-001-0930ND
2014-01-304417-002-0900ND
2014-01-304417-009-0955ND
2014-02-254417-003-0740ND
2015-01-204417-009-0805ND
2015-01-204417-002-0830ND
2016-01-274417-002-0930ND
2016-01-274417-009-0910ND
2017-01-124417-009-0835ND
2017-01-124417-002-0815ND