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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

City of Huntington 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.

MORE ABOUT THIS CONTAMINANT

 

73

Samples

0

Samples exceeding legal limit (MCL)

33

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.457 ppm105ND - 1.06 ppm
20150.150 ppm174ND - 0.710 ppm
20161.28 ppm126ND - 3.59 ppm
20170.479 ppm169ND - 1.57 ppm
20180.351 ppm84ND - 1.28 ppm
20190.426 ppm105ND - 1.62 ppm

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
2014-02-124417-025-1000ND
2014-02-124417-013-08500.590 ppm
2014-02-124417-012-0750ND
2014-02-124417-011-1020ND
2014-02-124417-010-09251.000 ppm
2014-05-064417-016-0920ND
2014-05-064417-010-10301.05 ppm
2014-05-064417-010-10201.06 ppm
2014-05-064417-009-08500.870 ppm
2014-05-064417-008-1105ND
2015-02-184417-011-1025ND
2015-02-184417-012-0840ND
2015-02-184417-010-0950ND
2015-02-184417-013-09200.520 ppm
2015-03-304417-025-0855ND
2015-05-054417-016-0920ND
2015-05-054417-009-08400.630 ppm
2015-05-054417-012-0820ND
2015-05-054417-008-1045ND
2015-07-304417-016-1010ND
2015-07-304417-025-0905ND
2015-07-304417-012-1040ND
2015-07-304417-008-0920ND
2015-07-304417-010-11400.710 ppm
2015-08-134417-009-08200.690 ppm
2015-08-134417-012-0750ND
2015-08-134417-012-0805ND
2016-02-024417-011-1010ND
2016-02-024417-025-1050ND
2016-02-024417-013-09350.480 ppm
2016-02-024417-010-1115ND
2016-02-024417-012-0805ND
2016-05-034417-008-1020ND
2016-05-034417-016-0850ND
2016-09-144417-009-11003.59 ppm
2016-09-224417-009-08403.24 ppm
2016-09-224417-009-08203.19 ppm
2016-10-174417-009-08102.45 ppm
2016-10-174417-009-08002.41 ppm
2017-02-164417-012-0925ND
2017-02-164417-011-10200.610 ppm
2017-02-164417-010-09500.690 ppm
2017-02-164417-025-1045ND
2017-02-164417-013-11051.37 ppm
2017-04-194417-012-0850ND
2017-04-194417-013-10100.610 ppm
2017-04-194417-013-10000.610 ppm
2017-04-194417-012-0905ND
2017-05-174417-011-10300.600 ppm
2017-05-174417-011-10150.610 ppm
2017-05-174417-009-08301.57 ppm
2017-05-174417-016-0850ND
2017-05-174417-010-09450.990 ppm
2017-09-194417-008-0900ND
2017-10-254417-008-0820ND
2018-01-244417-013-11000.650 ppm
2018-02-144417-025-0840ND
2018-03-074417-008-0800ND
2018-05-014417-016-0945ND
2018-05-014417-009-10001.28 ppm
2018-05-014417-010-10200.450 ppm
2018-05-014417-008-1115ND
2018-06-074417-011-08200.430 ppm
2019-01-164417-010-10250.900 ppm
2019-01-164417-016-0805ND
2019-01-164417-011-08350.650 ppm
2019-01-164417-008-0920ND
2019-01-164417-012-1000ND
2019-01-164417-025-0900ND
2019-01-164417-013-07300.500 ppm
2019-04-094417-009-09001.62 ppm
2019-04-094417-025-1030ND
2019-04-184417-011-09500.590 ppm