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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

City of Newport Beach

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

 

51

Samples

0

Samples exceeding legal limit (MCL)

42

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.65 ppm118ND - 3.30 ppm
20131.87 ppm109ND - 3.57 ppm
20141.74 ppm87ND - 3.34 ppm
20151.71 ppm108ND - 3.19 ppm
20161.74 ppm76ND - 3.26 ppm
20171.93 ppm54ND - 2.86 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2012-02-234417-004-0800ND
2012-03-274417-005-08503.30 ppm
2012-05-174417-002-0830ND
2012-05-174417-005-09152.87 ppm
2012-05-244417-004-0930ND
2012-05-244417-003-09002.82 ppm
2012-08-224417-004-07100.474 ppm
2012-08-224417-005-06502.91 ppm
2012-10-304417-004-09150.520 ppm
2012-10-304417-003-09502.42 ppm
2012-10-304417-005-09302.82 ppm
2013-03-194417-004-07400.497 ppm
2013-03-204417-005-07353.23 ppm
2013-05-284417-003-13002.48 ppm
2013-05-284417-004-12300.739 ppm
2013-05-294417-005-11403.41 ppm
2013-05-304417-002-0815ND
2013-08-124417-004-10150.610 ppm
2013-08-124417-005-10003.57 ppm
2013-11-194417-004-08450.678 ppm
2013-11-194417-005-09053.46 ppm
2014-03-034417-004-08100.655 ppm
2014-03-034417-005-08303.34 ppm
2014-06-184417-003-12452.44 ppm
2014-06-184417-005-12203.06 ppm
2014-06-184417-004-12300.610 ppm
2014-06-184417-002-1300ND
2014-08-214417-004-09100.804 ppm
2014-08-214417-005-09253.03 ppm
2015-03-024417-005-08353.16 ppm
2015-03-024417-004-08150.768 ppm
2015-05-044417-004-10250.813 ppm
2015-05-044417-002-1050ND
2015-05-044417-005-10103.19 ppm
2015-05-044417-003-11152.60 ppm
2015-08-114417-002-0945ND
2015-08-114417-003-09202.62 ppm
2015-08-114417-004-08400.858 ppm
2015-08-114417-005-08253.09 ppm
2016-02-294417-005-08053.26 ppm
2016-02-294417-004-10451.14 ppm
2016-05-094417-002-0840ND
2016-05-094417-003-08502.79 ppm
2016-06-164417-004-11151.02 ppm
2016-06-164417-004-11001.02 ppm
2016-11-014417-005-08352.92 ppm
2017-02-094417-004-09501.19 ppm
2017-02-094417-005-09302.78 ppm
2017-05-034417-003-12202.80 ppm
2017-05-034417-002-1235ND
2017-05-034417-005-11452.86 ppm