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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Cameron Parish Water and Water Works District 1

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
20150.0196 ppm106ND - 0.0350 ppm
2016ND100ND
2017ND80ND
20180.0500 ppm82ND - 0.200 ppm
2019ND80ND

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
2014-04-28AD91032ND
2014-04-28AD91012ND
2014-04-28AD91017ND
2014-04-28AD91032ND
2014-04-28AD91027ND
2014-04-28AD91022ND
2014-04-28AD91017ND
2014-04-28AD91012ND
2014-04-28AD91027ND
2014-04-28AD91022ND
2015-09-22352087200060.0340 ppm
2015-09-22352087200050.0350 ppm
2015-09-2235208720004ND
2015-09-2235208720007ND
2015-09-22352087200080.0290 ppm
2015-09-22352087200080.0290 ppm
2015-09-2235208720007ND
2015-09-22352087200060.0340 ppm
2015-09-2235208720004ND
2015-09-22352087200050.0350 ppm
2016-09-2235267493007ND
2016-09-2235267493006ND
2016-09-2235267493007ND
2016-09-2235267493008ND
2016-09-2235267493006ND
2016-09-2235267493009ND
2016-09-2235267493008ND
2016-09-2235267493010ND
2016-09-2235267493009ND
2016-09-2235267493010ND
2017-04-03AE13587ND
2017-04-03AE13595ND
2017-04-03AE13591ND
2017-04-03AE13599ND
2017-04-03AE13595ND
2017-04-03AE13591ND
2017-04-03AE13587ND
2017-04-03AE13599ND
2018-06-05B1802353-003ND
2018-06-05B1802353-002ND
2018-06-05B1802353-001ND
2018-06-05B1802353-001ND
2018-06-05B1802353-002ND
2018-06-05B1802353-003ND
2018-08-28B1803920-0010.200 ppm
2018-08-28B1803920-0010.200 ppm
2019-05-14B1902026-001ND
2019-05-14B1902026-004ND
2019-05-14B1902026-003ND
2019-05-14B1902026-002ND
2019-05-14B1902026-001ND
2019-05-14B1902026-004ND
2019-05-14B1902026-003ND
2019-05-14B1902026-002ND