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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

De Kalb

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0286 ppm51ND - 0.143 ppm
20130.0464 ppm51ND - 0.232 ppm
20140.0244 ppm51ND - 0.122 ppm
20150.0980 ppm51ND - 0.490 ppm
20160.0720 ppm51ND - 0.360 ppm
20170.102 ppm51ND - 0.510 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
2012-07-251207E44-001AND
2012-07-251207E44-002AND
2012-07-251207E44-003AND
2012-07-251207E44-004AND
2012-07-251207E44-005A0.143 ppm
2013-07-231307D17-001AND
2013-07-231307D17-002AND
2013-07-231307D17-003AND
2013-07-231307D17-005A0.232 ppm
2013-07-231307D17-004AND
2014-07-091407635-003BND
2014-07-091407635-005BND
2014-07-091407635-004BND
2014-07-091407635-002B0.122 ppm
2014-07-091407635-001BND
2015-09-0215I0335-01ND
2015-09-0215I0335-04ND
2015-09-0215I0335-02ND
2015-09-0315I0335-03ND
2015-09-0315I0335-050.490 ppm
2016-08-1116H1133-01ND
2016-08-1116H1133-02ND
2016-08-1116H1133-03ND
2016-08-1116H1133-04ND
2016-08-1116H1133-050.360 ppm
2017-07-127072713-03ND
2017-07-127072713-04ND
2017-07-127072713-050.510 ppm
2017-07-137072713-01ND
2017-07-137072713-02ND