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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

Buckeye Water District - Ohio River

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.

 

71

Samples

0

Samples exceeding legal limit (MCL)

71

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.858 ppm12120.520 ppm - 1.13 ppm
20130.812 ppm11110.550 ppm - 0.980 ppm
20140.791 ppm12120.580 ppm - 1.09 ppm
20150.826 ppm12120.590 ppm - 1.04 ppm
20160.845 ppm12120.730 ppm - 1.06 ppm
20170.862 ppm12120.500 ppm - 1.09 ppm

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
2012-01-1112-10503-030.840 ppm
2012-02-0112-11187-030.850 ppm
2012-03-0712-12597-010.770 ppm
2012-04-0412-13694-030.620 ppm
2012-05-0912-15216-030.520 ppm
2012-06-1312-16882-030.790 ppm
2012-07-1112-18257-031.13 ppm
2012-08-0112-19210-040.920 ppm
2012-09-1912-21849-030.930 ppm
2012-10-1012-23000-030.980 ppm
2012-11-1412-24650-011.05 ppm
2012-12-1212-25905-030.900 ppm
2013-01-0913-10449-030.830 ppm
2013-02-0613-11452-060.780 ppm
2013-03-1313-13118-020.980 ppm
2013-04-0313-14003-030.880 ppm
2013-05-0113-15201-080.550 ppm
2013-06-0513-16949-030.590 ppm
2013-07-2413-19621-030.860 ppm
2013-09-1813-22543-030.870 ppm
2013-10-0913-23712-010.920 ppm
2013-11-0613-24913-030.850 ppm
2013-12-1113-26540-010.820 ppm
2014-01-0814-10237-020.740 ppm
2014-02-0514-11398-051.09 ppm
2014-03-0514-12556-030.980 ppm
2014-04-0914-14297-03A0.790 ppm
2014-05-0714-15482-050.710 ppm
2014-06-0414-16938-020.580 ppm
2014-07-0914-18953-010.670 ppm
2014-08-0614-20274-050.720 ppm
2014-09-1014-22423-030.840 ppm
2014-10-0814-23882-010.950 ppm
2014-11-0514-25196-050.700 ppm
2014-12-0314-26421-030.720 ppm
2015-01-0715-10189-030.890 ppm
2015-02-0415-11338-050.920 ppm
2015-03-1115-12959-031.04 ppm
2015-04-1515-14706-010.750 ppm
2015-05-0615-15712-050.590 ppm
2015-06-1015-17794-030.770 ppm
2015-07-0815-19292-030.840 ppm
2015-08-0515-20923-050.640 ppm
2015-09-2315-23944-010.960 ppm
2015-10-1415-25134-020.950 ppm
2015-11-0415-26241-070.780 ppm
2015-12-0915-28014-030.780 ppm
2016-01-1316-10635-010.810 ppm
2016-02-0316-11578-070.990 ppm
2016-03-0916-13455-010.810 ppm
2016-04-0616-14820-010.760 ppm
2016-05-0416-16386-080.760 ppm
2016-06-0816-18414-010.730 ppm
2016-07-1316-20752-010.810 ppm
2016-08-0316-22202-030.890 ppm
2016-09-1416-25275-030.840 ppm
2016-10-0516-26784-011.06 ppm
2016-11-0216-28538-010.920 ppm
2016-12-0716-30498-010.760 ppm
2017-01-1117-10642-031.09 ppm
2017-02-0117-11745-070.910 ppm
2017-03-0817-14076-030.840 ppm
2017-04-0517-15808-010.760 ppm
2017-05-0317-17657-010.500 ppm
2017-06-1417-20592-030.760 ppm
2017-07-1217-22629-010.880 ppm
2017-08-0917-24950-010.780 ppm
2017-09-0617-26998-010.860 ppm
2017-10-1117-29676-011.03 ppm
2017-11-0117-31116-031.07 ppm
2017-12-0617-33288-020.860 ppm