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EWG's Tap Water Database

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Nitrate

Owensboro Municipal Utilities

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20100.380 ppm32ND - 0.647 ppm
20110.448 ppm220.444 ppm - 0.452 ppm
20120.317 ppm440.305 ppm - 0.328 ppm
2013ND20ND
2014ND20ND
2015ND20ND

ppm = parts per million.

State and national drinking water standards and health guidelines

Health Guideline 0.14 ppm

The health guideline of 0.14 ppm for nitrate was defined in a peer-reviewed scientific study by EWG and corresponds to one-in-one-million annual cancer risk level.

ppm = parts per million.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppm = parts per million.

EPA Maximum Contaminant
Level Goal (MCLG)10 ppm

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppm = parts per million.

All test results

Date Lab ID Result
2010-06-23000069500.647 ppm
2010-06-23000069510.493 ppm
2010-11-01L48674301ND
2011-06-24000109960.452 ppm
2011-06-24000109990.444 ppm
2012-07-0300015454-NIT0.305 ppm
2012-07-03000154540.305 ppm
2012-07-0300015453-NIT0.328 ppm
2012-07-03000154530.328 ppm
2013-09-26L65998003ND
2013-09-26L65998004ND
2014-06-10L70392201ND
2014-06-10L70392202ND
2015-06-18L77211002ND
2015-06-18L77211001ND