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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Lincoln County PWSD 1

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

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.00640 ppm51ND - 0.0320 ppm
20150.00300 ppm102ND - 0.0180 ppm
20160.00220 ppm51ND - 0.0110 ppm
2017ND50ND
2018ND50ND
2019ND50ND

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
2014-01-28AC17195ND
2014-01-28AC17194ND
2014-01-28AC17198ND
2014-01-28AC17197ND
2014-01-28AC171960.0320 ppm
2015-04-29AC45278ND
2015-04-29AC45276ND
2015-04-29AC452750.0120 ppm
2015-04-29AC45279ND
2015-04-29AC45277ND
2015-10-01AC59988ND
2015-10-01AC59986ND
2015-10-01AC59987ND
2015-10-01AC59989ND
2015-10-01AC599850.0180 ppm
2016-09-19AC84398ND
2016-09-19AC84396ND
2016-09-19AC843950.0110 ppm
2016-09-19AC84394ND
2016-09-19AC84397ND
2017-12-11AD10991ND
2017-12-11AD10992ND
2017-12-11AD10994ND
2017-12-11AD10993ND
2017-12-11AD10995ND
2018-09-26AD33430ND
2018-09-26AD33432ND
2018-09-26AD33431ND
2018-09-26AD33429ND
2018-09-28AD33428ND
2019-09-23AD55687ND
2019-09-23AD55688ND
2019-09-23AD55689ND
2019-09-23AD55690ND
2019-09-23AD55691ND