Know Your Environment. Protect Your Health.

Chloromethane

Cameron Parish Water and Water Works District 1

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)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.98 ppb10101.55 ppb - 11.3 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
2014-02-11103722P1.55 ppb
2014-02-11103720P3.79 ppb
2014-02-11103723P4.64 ppb
2014-02-11103724P8.80 ppb
2014-02-11103721P11.3 ppb
2014-08-12107795P3.30 ppb
2014-08-12107793P3.66 ppb
2014-08-12107791P4.65 ppb
2014-09-03109288R3.92 ppb
2014-09-03109289R4.22 ppb