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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Baton Rouge Water Company

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

MORE ABOUT THIS CONTAMINANT

 

107

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND1070ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-13AD88277ND
2014-01-13AD88278ND
2014-01-13AD88279ND
2014-01-13AD88280ND
2014-01-13AD88281ND
2014-01-13AD88277ND
2014-01-13AD88278ND
2014-01-13AD88279ND
2014-01-13AD88280ND
2014-01-13AD88281ND
2014-05-05AD91129ND
2014-05-05AD91130ND
2014-05-05AD91131ND
2014-05-05AD91132ND
2014-05-05AD91133ND
2014-05-05AD91129ND
2014-05-05AD91130ND
2014-05-05AD91131ND
2014-05-05AD91132ND
2014-05-05AD91133ND
2014-05-0935137755003AMND
2014-05-0935137755019AMND
2014-05-0935137755015AMND
2014-05-0935137755007AMND
2014-05-0935137755013AMND
2014-05-0935137755009AMND
2014-05-0935137755005AMND
2014-05-0935137755011AMND
2014-05-1035137755001AMND
2014-05-1035137755017AMND
2014-05-12AD91432ND
2014-05-12AD91433ND
2014-05-12AD91434ND
2014-05-12AD91435ND
2014-05-12AD91436ND
2014-05-12AD91432ND
2014-05-12AD91433ND
2014-05-12AD91434ND
2014-05-12AD91435ND
2014-05-12AD91436ND
2014-05-1635138729001AMND
2014-05-1635138729007AMND
2014-05-1635138729005AMND
2014-05-1635138729003AMND
2014-05-19AD91649ND
2014-05-19AD91650ND
2014-05-19AD91651ND
2014-05-19AD91652ND
2014-05-19AD91653ND
2014-05-19AD91649ND
2014-05-19AD91650ND
2014-05-19AD91651ND
2014-05-19AD91652ND
2014-05-19AD91653ND
2014-05-2035139390003AMND
2014-05-2035139390005AMND
2014-05-2035139390001AMND
2014-05-2035139390007AMND
2014-06-09AD92073ND
2014-06-09AD92073ND
2014-06-2335143471019AMND
2014-07-14AD93462ND
2014-07-14AD93463ND
2014-07-14AD93464ND
2014-07-14AD93462ND
2014-07-14AD93463ND
2014-07-14AD93464ND
2014-07-21AD93465ND
2014-07-21AD94007ND
2014-07-21AD94008ND
2014-07-21AD94009ND
2014-07-21AD94010ND
2014-07-21AD94011ND
2014-07-21AD93465ND
2014-07-21AD94007ND
2014-07-21AD94008ND
2014-07-21AD94009ND
2014-07-21AD94010ND
2014-07-21AD94011ND
2014-08-11AD95163ND
2014-08-11AD95164ND
2014-08-11AD95165ND
2014-08-11AD95167ND
2014-08-11AD95163ND
2014-08-11AD95164ND
2014-08-11AD95165ND
2014-08-11AD95167ND
2014-11-0735163270005AMND
2014-11-0735163270007AMND
2014-11-0735163270013AMND
2014-11-0735163270011AMND
2014-11-0735163270001AMND
2014-11-0735163270041AMND
2014-11-0735163270003AMND
2014-11-0835163270047AMND
2014-11-0835163270009AMND
2014-11-1035163270031AMND
2014-11-1035163270029AMND
2014-11-1035163270027AMND
2014-11-1035163270023AMND
2014-11-1035163270025AMND
2014-11-1135163270039AMND
2014-11-1135163270043AMND
2014-11-1135163270045AMND
2014-11-1135163270035AMND
2014-11-1135163270037AMND
2014-11-1135163270033AMND