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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Aqua Ohio Inc. - Mentor

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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.313 ppm125ND - 0.980 ppm
20130.207 ppm124ND - 0.790 ppm
20140.0692 ppm121ND - 0.830 ppm
20150.148 ppm123ND - 0.690 ppm
20160.159 ppm123ND - 0.710 ppm
2017ND120ND

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
2012-01-04AD34709ND
2012-02-06AD38243ND
2012-03-06AD414360.980 ppm
2012-04-09AD449370.660 ppm
2012-05-07AD482750.940 ppm
2012-06-06AD514830.680 ppm
2012-07-02AD546670.500 ppm
2012-08-06AD59143ND
2012-09-04AD62950ND
2012-10-03AD67147ND
2012-11-12AD71972ND
2012-12-04AD74418ND
2013-01-03AD77143ND
2013-02-05AD80091ND
2013-03-05AD829310.550 ppm
2013-04-02AD85785ND
2013-05-07AD898790.620 ppm
2013-06-03AD930910.790 ppm
2013-07-01AD968310.520 ppm
2013-08-06AE01610ND
2013-09-04AE05852ND
2013-10-01AE09968ND
2013-11-04AE14234ND
2013-12-02AE17081ND
2014-01-07AE20458ND
2014-02-04AE23071ND
2014-03-05AE25845ND
2014-04-01AE28524ND
2014-05-05AE320260.830 ppm
2014-06-03AE35536ND
2014-07-01AE38940ND
2014-08-05AE43486ND
2014-09-10AE48186ND
2014-10-01AE51300ND
2014-11-05AE55938ND
2014-12-02AE59087ND
2015-01-06AE61832ND
2015-02-03AE64900ND
2015-03-03AE67760ND
2015-04-01AE709270.500 ppm
2015-05-04AE744250.690 ppm
2015-06-02AE780290.590 ppm
2015-07-06AE82407ND
2015-08-10AE87316ND
2015-09-01AE90332ND
2015-10-05AE94625ND
2015-11-03AE98158ND
2015-12-16AF03214ND
2016-01-11AF04742ND
2016-02-16AF08136ND
2016-03-08AF100570.650 ppm
2016-04-13AF13257ND
2016-05-04AF152820.550 ppm
2016-06-14AF190230.710 ppm
2016-07-11AF21753ND
2016-08-02AF24670ND
2016-09-06AF29047ND
2016-10-03AF31565ND
2016-11-02AF35137ND
2016-12-05AF37634ND
2017-01-03AF39814ND
2017-02-01AF42530ND
2017-03-01AF44959ND
2017-04-03AF47389ND
2017-05-08AF50783ND
2017-06-05AF53110ND
2017-07-05AF56305ND
2017-08-02AF59394ND
2017-09-05AF62891ND
2017-10-02AF65518ND
2017-11-06AF68530ND
2017-12-04AF70705ND