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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

Buckman Regional Water Treatment Plant

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.190 ppm110.190 ppm
2014ND10ND
20150.190 ppm110.190 ppm
20160.120 ppm110.120 ppm
2017ND10ND

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
2012-04-121204576-003AND
2013-02-1920130061460.190 ppm
2014-04-092014011948ND
2015-02-2520150066390.190 ppm
2016-05-1020160138960.120 ppm
2017-02-271703005-003ND