Know Your Environment. Protect Your Health.

Chloromethane

Rapides Parish Waterworks District 3

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.140 ppb51ND - 0.700 ppb
20140.130 ppb51ND - 0.650 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2013-07-2335101586005AMND
2013-07-2335101586007AM0.700 ppb
2013-07-2335101586003AMND
2013-07-2335101586001AMND
2013-10-2135112897001AMND
2014-01-3035124497007AM0.650 ppb
2014-01-3035124497005AMND
2014-01-3035124497009AMND
2014-01-3035124497001AMND
2014-04-1035133815001AMND