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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

Lumberton MUD

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.

In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.

Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

114

Samples

0

Samples exceeding legal limit (MCL)

23

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.644 ppb182ND - 7.50 ppb
20151.17 ppb195ND - 7.70 ppb
20160.863 ppb193ND - 9.60 ppb
20171.42 ppb206ND - 8.00 ppb
20181.21 ppb194ND - 11.0 ppb
20190.189 ppb193ND - 1.50 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-04AC41263ND
2014-03-27AC48518ND
2014-03-27AC48516ND
2014-03-27AC485194.10 ppb
2014-03-27AC48517ND
2014-05-09AC53881ND
2014-05-09AC53898ND
2014-05-09AC53875ND
2014-05-09AC53895ND
2014-05-09AC537747.50 ppb
2014-09-16AC67163ND
2014-09-16AC67148ND
2014-09-16AC67161ND
2014-09-16AC67153ND
2014-11-10AC71687ND
2014-11-10AC71724ND
2014-11-10AC71684ND
2014-11-10AC71685ND
2015-02-09AC797387.00 ppb
2015-02-09AC79736ND
2015-02-09AC796621.80 ppb
2015-02-09AC79659ND
2015-02-09AC79697ND
2015-02-09AC79657ND
2015-04-08AC877191.000 ppb
2015-04-08AC87661ND
2015-04-08AC87658ND
2015-04-08AC87660ND
2015-04-08AC87663ND
2015-07-27AD010004.70 ppb
2015-07-27AD01005ND
2015-07-27AD00993ND
2015-07-27AD00996ND
2015-12-08AD162067.70 ppb
2015-12-08AD16204ND
2015-12-08AD16203ND
2015-12-08AD16205ND
2016-02-10AD23026ND
2016-02-10AD23001ND
2016-02-10AD23010ND
2016-02-10AD23011ND
2016-02-10AD23002ND
2016-06-06AD394589.60 ppb
2016-06-06AD39448ND
2016-06-06AD39373ND
2016-06-06AD39369ND
2016-06-06AD39366ND
2016-06-17AD41124ND
2016-09-08AD483863.30 ppb
2016-09-08AD48385ND
2016-09-08AD48387ND
2016-09-08AD48357ND
2016-12-16AD62548ND
2016-12-16AD62549ND
2016-12-16AD625503.50 ppb
2016-12-16AD62551ND
2017-02-07AD69206ND
2017-02-07AD692126.10 ppb
2017-02-07AD69228ND
2017-02-07AD691718.00 ppb
2017-02-07AD69170ND
2017-02-07AD69172ND
2017-02-07AD69160ND
2017-05-23AD85257ND
2017-05-23AD852234.00 ppb
2017-05-23AD85220ND
2017-05-23AD85221ND
2017-05-23AD852191.90 ppb
2017-08-03AD920365.80 ppb
2017-08-03AD92034ND
2017-08-03AD92038ND
2017-08-03AD92037ND
2017-11-20AE053712.60 ppb
2017-11-20AE05372ND
2017-11-20AE05370ND
2017-11-20AE05369ND
2018-02-27AE1575411.0 ppb
2018-02-27AE15756ND
2018-02-27AE15742ND
2018-02-27AE15702ND
2018-02-27AE15703ND
2018-02-27AE15704ND
2018-02-27AE15701ND
2018-06-04AE285069.00 ppb
2018-06-04AE28509ND
2018-06-04AE28508ND
2018-06-04AE28505ND
2018-08-13AE366271.10 ppb
2018-08-13AE36583ND
2018-08-13AE36591ND
2018-08-13AE365841.80 ppb
2018-10-01AE42224ND
2018-10-01AE42223ND
2018-10-01AE42222ND
2018-10-01AE42221ND
2019-02-06AE53121ND
2019-02-06AE53120ND
2019-02-06AE53122ND
2019-02-06AE53123ND
2019-05-02AE64665ND
2019-05-02AE64663ND
2019-05-02AE645901.000 ppb
2019-05-02AE64589ND
2019-05-02AE64595ND
2019-05-02AE64596ND
2019-08-12AE78084ND
2019-08-12AE780271.50 ppb
2019-08-12AE78026ND
2019-08-12AE78024ND
2019-08-12AE78022ND
2019-11-04AE882961.10 ppb
2019-11-04AE88294ND
2019-11-04AE88295ND
2019-11-04AE88297ND