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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

NJ American Water - Western

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.

MORE ABOUT THIS CONTAMINANT

 

81

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.432 ppm144ND - 2.23 ppm
20150.416 ppm146ND - 2.08 ppm
20160.380 ppm145ND - 1.75 ppm
20170.312 ppm148ND - 1.92 ppm
20180.273 ppm133ND - 1.52 ppm
20190.288 ppm123ND - 1.62 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
2014-01-08245663011.14 ppm
2014-06-1224565201ND
2014-06-1224573001ND
2014-06-1224566701ND
2014-06-1224566901ND
2014-06-1224569401ND
2014-06-3024572701ND
2014-07-24266971010.860 ppm
2014-07-2424569001ND
2014-07-30245686011.82 ppm
2014-07-3024572801ND
2014-07-3124569101ND
2014-07-3124569601ND
2014-09-22245722012.23 ppm
2015-01-12278637011.09 ppm
2015-01-28278653011.85 ppm
2015-01-2927866101ND
2015-01-2927865901ND
2015-01-2927865801ND
2015-03-2628341001ND
2015-03-2628343601ND
2015-07-23297296010.790 ppm
2015-07-2729732201ND
2015-07-2829732401ND
2015-07-2829732101ND
2015-07-30297270010.01000 ppm
2015-07-30297254010.01000 ppm
2015-09-24278682012.08 ppm
2016-01-04311354011.000 ppm
2016-01-2031137501ND
2016-01-20311397011.62 ppm
2016-03-1731543801ND
2016-03-1731542301ND
2016-06-1431818401ND
2016-07-1232853501ND
2016-07-12328517010.930 ppm
2016-07-1232850301ND
2016-07-1232853401ND
2016-10-0533391101ND
2016-10-06333924010.0200 ppm
2016-10-1133391001ND
2016-11-08311369011.75 ppm
2017-01-05344600011.26 ppm
2017-01-09344619011.92 ppm
2017-03-0634462601ND
2017-03-0735048701ND
2017-03-07350450010.0200 ppm
2017-03-3035355401ND
2017-06-2736533601ND
2017-07-25369695010.820 ppm
2017-07-25369694010.320 ppm
2017-07-2536527701ND
2017-07-25353529010.01000 ppm
2017-08-2937191101ND
2017-08-30371910010.01000 ppm
2017-08-30371936010.01000 ppm
2018-01-10384570011.52 ppm
2018-04-24384579011.49 ppm
2018-04-2438460201ND
2018-04-2438453501ND
2018-04-2438457401ND
2018-04-2438461001ND
2018-04-2438460901ND
2018-04-2538457601ND
2018-08-0240453901ND
2018-08-0240463801ND
2018-08-0240463701ND
2018-08-28404611010.540 ppm
2018-09-1039787301ND
2019-01-2342650701ND
2019-01-2342645701ND
2019-01-2842650901ND
2019-01-2842647501ND
2019-01-2942650101ND
2019-01-2942649901ND
2019-01-2942647701ND
2019-02-05432938011.17 ppm
2019-08-27426503010.670 ppm
2019-08-27426537011.62 ppm
2019-08-2742653501ND
2019-08-2842653401ND