Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Nitrate and nitrite

City of Lake Charles 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.

 

122

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND360ND
2013ND120ND
2014ND120ND
20150.00163 ppm322ND - 0.0260 ppm
2016ND120ND
20170.111 ppm182ND - 1.000 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
2012-04-30AD65257ND
2012-04-30AD65262ND
2012-04-30AD65267ND
2012-04-30AD65272ND
2012-04-30AD65277ND
2012-04-30AD65257ND
2012-04-30AD65262ND
2012-04-30AD65267ND
2012-04-30AD65272ND
2012-04-30AD65277ND
2012-05-29AD65717ND
2012-05-29AD65722ND
2012-05-29AD65727ND
2012-05-29AD65737ND
2012-05-29AD65717ND
2012-05-29AD65722ND
2012-05-29AD65727ND
2012-05-29AD65737ND
2012-07-23AD67931ND
2012-07-23AD67936ND
2012-07-23AD67931ND
2012-07-23AD67936ND
2012-10-08AD71666ND
2012-10-08AD71676ND
2012-10-08AD71725ND
2012-10-08AD71735ND
2012-10-08AD71736ND
2012-10-08AD71737ND
2012-10-08AD71666ND
2012-10-08AD71676ND
2012-10-08AD71725ND
2012-10-08AD71735ND
2012-10-08AD71736ND
2012-10-08AD71737ND
2012-10-09AD71760ND
2012-10-09AD71760ND
2013-10-04AD85587ND
2013-10-04AD85588ND
2013-10-04AD85589ND
2013-10-04AD85590ND
2013-10-04AD85591ND
2013-10-04AD85592ND
2013-10-04AD85587ND
2013-10-04AD85588ND
2013-10-04AD85589ND
2013-10-04AD85590ND
2013-10-04AD85591ND
2013-10-04AD85592ND
2014-11-05AD99398ND
2014-11-05AD99399ND
2014-11-05AD99400ND
2014-11-05AD99401ND
2014-11-05AD99402ND
2014-11-05AD99403ND
2014-11-05AD99398ND
2014-11-05AD99399ND
2014-11-05AD99400ND
2014-11-05AD99401ND
2014-11-05AD99402ND
2014-11-05AD99403ND
2015-03-2335180731001ND
2015-03-2335180731002ND
2015-03-2335180731003ND
2015-03-2335180731004ND
2015-03-2335180731005ND
2015-03-2335180731001ND
2015-03-2335180731002ND
2015-03-2335180731003ND
2015-03-2335180731004ND
2015-03-2335180731005ND
2015-07-2735199384001ND
2015-07-2735199384002ND
2015-07-2735199384003ND
2015-07-2735199384004ND
2015-07-2735199384005ND
2015-07-2735199384001ND
2015-07-2735199384002ND
2015-07-2735199384003ND
2015-07-2735199384004ND
2015-07-2735199384005ND
2015-08-1035201689001ND
2015-08-1035201689002ND
2015-08-10352016890030.0260 ppm
2015-08-1035201689004ND
2015-08-1035201689005ND
2015-08-1035201689001ND
2015-08-1035201689002ND
2015-08-10352016890030.0260 ppm
2015-08-1035201689004ND
2015-08-1035201689005ND
2015-09-2135208328005ND
2015-09-2135208328005ND
2016-02-2635231784011ND
2016-02-2635231784012ND
2016-02-2635231784013ND
2016-02-2635231784014ND
2016-02-2635231784015ND
2016-02-2635231784016ND
2016-02-2635231784011ND
2016-02-2635231784012ND
2016-02-2635231784013ND
2016-02-2635231784014ND
2016-02-2635231784015ND
2016-02-2635231784016ND
2017-02-2135296652011ND
2017-02-2135296652012ND
2017-02-2135296652013ND
2017-02-2135296652014ND
2017-02-2135296652015ND
2017-02-2135296652016ND
2017-02-2135296652011ND
2017-02-2135296652012ND
2017-02-2135296652013ND
2017-02-2135296652014ND
2017-02-2135296652015ND
2017-02-2135296652016ND
2017-12-18AE20277ND
2017-12-18AE202811.000 ppm
2017-12-18AE20285ND
2017-12-18AE20277ND
2017-12-18AE202811.000 ppm
2017-12-18AE20285ND