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EWG's Tap Water Database

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Nitrate and nitrite

Beauregard Water Works District #3

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.

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND120ND
2011N/A00N/A
20120.167 ppm244ND - 1.000 ppm
20130.0909 ppm222ND - 1.000 ppm
2014ND120ND
20150.0767 ppm1410ND - 0.260 ppm

ppm = parts per million.

State and national drinking water standards and health guidelines

Health Guideline 5 ppm

The health guideline of 5 ppm for nitrate and nitrite was defined by EWG based on studies by scientists at the National Cancer Institute and other independent researchers. This health guideline protects against cancer and harm to fetal growth and development.

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
2010-06-21AD40616ND
2010-06-21AD40618ND
2010-06-21AD40613ND
2010-06-21AD40617ND
2010-06-21AD40614ND
2010-06-21AD40613ND
2010-06-21AD40614ND
2010-06-21AD40615ND
2010-06-21AD40616ND
2010-06-21AD40617ND
2010-06-21AD40615ND
2010-06-21AD40618ND
2012-02-08AD63867ND
2012-02-08AD63868ND
2012-02-08AD63869ND
2012-02-08AD63870ND
2012-02-08AD63871ND
2012-02-08AD63872ND
2012-02-08AD63867ND
2012-02-08AD63872ND
2012-02-08AD63871ND
2012-02-08AD63870ND
2012-02-08AD63868ND
2012-02-08AD63869ND
2012-06-193560137W12ND
2012-06-193560137W12ND
2012-11-05AD72959ND
2012-11-05AD72979ND
2012-11-05AD729741.000 ppm
2012-11-05AD729691.000 ppm
2012-11-05AD72979ND
2012-11-05AD72964ND
2012-11-05AD72959ND
2012-11-05AD72964ND
2012-11-05AD729691.000 ppm
2012-11-05AD729741.000 ppm
2013-01-14AD74737ND
2013-01-14AD74747ND
2013-01-14AD74752ND
2013-01-14AD747321.000 ppm
2013-01-14AD74747ND
2013-01-14AD74742ND
2013-01-14AD747321.000 ppm
2013-01-14AD74742ND
2013-01-14AD74752ND
2013-01-14AD74737ND
2013-12-09AD87687ND
2013-12-09AD87686ND
2013-12-09AD87690ND
2013-12-09AD87691ND
2013-12-09AD87688ND
2013-12-09AD87686ND
2013-12-09AD87687ND
2013-12-09AD87688ND
2013-12-09AD87689ND
2013-12-09AD87690ND
2013-12-09AD87691ND
2013-12-09AD87689ND
2014-10-27AD99063ND
2014-10-27AD99065ND
2014-10-27AD99058ND
2014-10-27AD99059ND
2014-10-27AD99062ND
2014-10-27AD99064ND
2014-10-27AD99065ND
2014-10-27AD99063ND
2014-10-27AD99062ND
2014-10-27AD99059ND
2014-10-27AD99058ND
2014-10-27AD99064ND
2015-03-02351776650020.260 ppm
2015-03-02351776650020.260 ppm
2015-09-29352095340060.0320 ppm
2015-09-29352095340050.0310 ppm
2015-09-29352095340040.0640 ppm
2015-09-29352095340030.150 ppm
2015-09-2935209534001ND
2015-09-29352095340060.0320 ppm
2015-09-2935209534001ND
2015-09-2935209534002ND
2015-09-29352095340030.150 ppm
2015-09-29352095340040.0640 ppm
2015-09-29352095340050.0310 ppm
2015-09-2935209534002ND