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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Fordair Water Co-op Inc.

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
2014N/A00N/A
2015ND10ND
20160.1000 ppm110.1000 ppm
20170.300 ppm110.300 ppm
20180.0700 ppm110.0700 ppm
20190.150 ppm21ND - 0.300 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
2015-06-1817239ND
2016-06-230.1000 ppm
2017-06-270.300 ppm
2018-07-180.0700 ppm
2019-04-29ND
2019-07-150.300 ppm