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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Lexington Park

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

 

89

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND160ND
2016ND160ND
2017ND150ND
2018ND150ND
2019ND100ND

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
2014-04-02140402_03_200050ND
2014-04-02140402_01_200050ND
2014-04-02140402_26_200050ND
2014-04-02140402_25_200050ND
2014-04-02140402_23_200050ND
2014-04-02140402_22_200051ND
2014-04-02140402_21_200051ND
2014-04-02140402_20_200050ND
2014-04-02140402_18_200051ND
2014-04-02140402_12_200051ND
2014-04-02140402_10_200050ND
2014-04-02140402_09_200050ND
2014-04-02140402_08_200050ND
2014-04-02140402_07_200050ND
2014-04-02140402_06_200050ND
2014-04-02140402_04_200050ND
2014-04-02140402_15_200050ND
2015-04-062063665004ND
2015-04-062063644007ND
2015-04-062063665003ND
2015-04-062063644008ND
2015-04-062063665002ND
2015-04-062063665001ND
2015-04-062063644006ND
2015-04-062063644012ND
2015-04-062063644011ND
2015-04-072063644001ND
2015-04-072063644004ND
2015-04-072063644009ND
2015-04-072063644002ND
2015-04-072063644003ND
2015-04-072063644010ND
2015-04-072063644005ND
2016-03-302134449008ND
2016-03-302134449001ND
2016-03-302134449006ND
2016-03-302134422001ND
2016-03-302134422003ND
2016-03-302134449007ND
2016-03-302134422002ND
2016-03-302134449002ND
2016-03-302134449005ND
2016-03-302134421001ND
2016-03-302134421002ND
2016-03-302134449004ND
2016-03-302134449003ND
2016-03-312134423001ND
2016-03-312134449010ND
2016-03-312134449009ND
2017-04-032220000003ND
2017-04-032220000001ND
2017-04-032220000006ND
2017-04-032219981001ND
2017-04-032219985001ND
2017-04-032220000007ND
2017-04-032219981003ND
2017-04-032219981002ND
2017-04-032220000008ND
2017-04-032220000002ND
2017-04-032220000010ND
2017-04-032220000004ND
2017-04-032220000009ND
2017-04-032220000005ND
2017-12-122282625001ND
2018-03-262306353004ND
2018-03-262306353001ND
2018-03-262306353005ND
2018-03-262306353006ND
2018-03-262306353007ND
2018-03-262306353008ND
2018-03-262306353003ND
2018-03-262306355001ND
2018-03-262306353002ND
2018-03-272306356002ND
2018-03-272306356003ND
2018-03-272306356001ND
2018-04-022306357001ND
2018-04-022306357002ND
2018-11-283003953001ND
2019-02-043014698001ND
2019-02-043014698006ND
2019-02-043014698007ND
2019-02-043014698008ND
2019-02-043014698002ND
2019-02-043014698003ND
2019-02-043014698009ND
2019-02-043014698004ND
2019-02-043014698010ND
2019-02-043014698005ND