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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Farmerville Water System

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.

MORE ABOUT THIS CONTAMINANT

 

48

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND140ND
20160.0625 ppm440.0610 ppm - 0.0640 ppm
20170.0155 ppm42ND - 0.0310 ppm
2018ND140ND
20190.129 ppm440.0370 ppm - 0.220 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
2014-12-10AE00480ND
2014-12-10AE00477ND
2014-12-10AE00479ND
2014-12-10AE00480ND
2014-12-10AE00481ND
2014-12-10AE00479ND
2014-12-10AE00477ND
2014-12-10AE00481ND
2015-07-2135198892005ND
2015-07-2135198892001ND
2015-07-2135198892002ND
2015-07-2135198892003ND
2015-07-2135198892004ND
2015-07-2135198892005ND
2015-07-2135198892004ND
2015-07-2135198892003ND
2015-07-2135198892002ND
2015-07-2135198892001ND
2015-08-2435204447004ND
2015-08-2435204447003ND
2015-08-2435204447004ND
2015-08-2435204447003ND
2016-05-13352451240130.0610 ppm
2016-05-13352451240130.0610 ppm
2016-12-20352847090070.0640 ppm
2016-12-20352847090070.0640 ppm
2017-07-05353241270020.0310 ppm
2017-07-0535324127001ND
2017-07-05353241270020.0310 ppm
2017-07-0535324127001ND
2018-04-2535388787005ND
2018-04-2535388787005ND
2018-04-2535388787004ND
2018-04-2535388787003ND
2018-04-2535388787002ND
2018-04-2535388787001ND
2018-04-2535388787001ND
2018-04-2535388787002ND
2018-04-2535388787003ND
2018-04-2535388787004ND
2018-05-1535392914002ND
2018-05-1535392914001ND
2018-05-1535392914001ND
2018-05-1535392914002ND
2019-12-06355196570010.0370 ppm
2019-12-06355196570020.220 ppm
2019-12-06355196570010.0370 ppm
2019-12-06355196570020.220 ppm