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EWG's Tap Water Database — 2021 UPDATE

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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.

MORE ABOUT THIS CONTAMINANT

 

154

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
20150.00163 ppm322ND - 0.0260 ppm
2016ND120ND
20170.111 ppm182ND - 1.000 ppm
2018ND340ND
2019ND460ND

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
2014-11-05AD99398ND
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
2018-01-22AE20431ND
2018-01-22AE20435ND
2018-01-22AE20439ND
2018-01-22AE20443ND
2018-01-22AE20480ND
2018-01-22AE20481ND
2018-01-22AE20431ND
2018-01-22AE20435ND
2018-01-22AE20439ND
2018-01-22AE20443ND
2018-01-22AE20480ND
2018-01-22AE20481ND
2018-02-05AE20553ND
2018-02-05AE20556ND
2018-02-05AE20559ND
2018-02-05AE20562ND
2018-02-05AE20565ND
2018-02-05AE20553ND
2018-02-05AE20556ND
2018-02-05AE20559ND
2018-02-05AE20562ND
2018-02-05AE20565ND
2018-02-26AE20773ND
2018-02-26AE20778ND
2018-02-26AE20781ND
2018-02-26AE20784ND
2018-02-26AE20787ND
2018-02-26AE20773ND
2018-02-26AE20778ND
2018-02-26AE20781ND
2018-02-26AE20784ND
2018-02-26AE20787ND
2018-12-04B1805821-001ND
2018-12-04B1805821-001ND
2019-01-17B1900289-001ND
2019-01-17B1900289-002ND
2019-01-17B1900289-003ND
2019-01-17B1900289-004ND
2019-01-17B1900289-005ND
2019-01-17B1900289-006ND
2019-01-17B1900289-001ND
2019-01-17B1900289-002ND
2019-01-17B1900289-003ND
2019-01-17B1900289-004ND
2019-01-17B1900289-005ND
2019-01-17B1900289-006ND
2019-11-18B1905174-001ND
2019-11-18B1905174-002ND
2019-11-18B1905174-003ND
2019-11-18B1905174-004ND
2019-11-18B1905174-005ND
2019-11-18B1905174-001ND
2019-11-18B1905174-002ND
2019-11-18B1905174-003ND
2019-11-18B1905174-004ND
2019-11-18B1905174-005ND
2019-11-20B1905305-001ND
2019-11-20B1905305-002ND
2019-11-20B1905305-003ND
2019-11-20B1905305-004ND
2019-11-20B1905305-005ND
2019-11-20B1905305-001ND
2019-11-20B1905305-002ND
2019-11-20B1905305-003ND
2019-11-20B1905305-004ND
2019-11-20B1905305-005ND
2019-12-02B1905454-001ND
2019-12-02B1905454-002ND
2019-12-02B1905454-003ND
2019-12-02B1905454-004ND
2019-12-02B1905454-005ND
2019-12-02B1905454-006ND
2019-12-02B1905454-001ND
2019-12-02B1905454-002ND
2019-12-02B1905454-003ND
2019-12-02B1905454-004ND
2019-12-02B1905454-005ND
2019-12-02B1905454-006ND
2019-12-18B1905687-001ND
2019-12-18B1905687-001ND