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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Town of Plain Dealing 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

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
20150.0665 ppm440.0650 ppm - 0.0680 ppm
20160.0135 ppm82ND - 0.0540 ppm
20170.00775 ppm244ND - 0.0470 ppm
20180.0300 ppm220.0300 ppm
2019ND100ND

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
2014-04-25AD90968ND
2014-04-25AD90967ND
2014-04-25AD90968ND
2014-04-25AD90967ND
2015-05-18351896560010.0650 ppm
2015-05-18351896560010.0650 ppm
2015-09-08352066770110.0680 ppm
2015-09-08352066770110.0680 ppm
2016-03-24352366040080.0540 ppm
2016-03-24352366040080.0540 ppm
2016-10-0335269283003ND
2016-10-0335269283004ND
2016-10-0335269283004ND
2016-10-0335269283003ND
2016-10-1135270336004ND
2016-10-1135270336004ND
2017-09-2935338801002ND
2017-09-2935338801001ND
2017-09-29AE18891ND
2017-09-2935338801003ND
2017-09-2935338801004ND
2017-09-2935338801005ND
2017-09-29AE18892ND
2017-09-29AE18893ND
2017-09-2935338801006ND
2017-09-29353388010070.0460 ppm
2017-09-29353388010080.0470 ppm
2017-09-29AE18894ND
2017-09-2935338801003ND
2017-09-2935338801001ND
2017-09-2935338801002ND
2017-09-29AE18894ND
2017-09-29AE18893ND
2017-09-29AE18892ND
2017-09-29AE18891ND
2017-09-29353388010080.0470 ppm
2017-09-29353388010070.0460 ppm
2017-09-2935338801006ND
2017-09-2935338801005ND
2017-09-2935338801004ND
2018-07-11354037750010.0300 ppm
2018-07-11354037750010.0300 ppm
2019-07-1835486055003ND
2019-07-1835486055003ND
2019-07-2935486030002ND
2019-07-2935486030001ND
2019-07-2935486030001ND
2019-07-2935486030002ND
2019-08-2735493592001ND
2019-08-2735493592001ND
2019-09-2635500973001ND
2019-09-2635500973001ND