Know Your Environment. Protect Your Health.

Chloromethane

City of Alexandria Water System

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND200ND
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
2015-02-093183647ND
2015-02-103184617ND
2015-02-163188968ND
2015-02-163188943ND
2015-02-173192245ND
2015-02-173193143ND
2015-02-173189365ND
2015-02-173189535ND
2015-02-173189403ND
2015-02-183192254ND
2015-08-043292505ND
2015-08-043292908ND
2015-08-053293571ND
2015-08-053293580ND
2015-08-063294789ND
2015-08-063294804ND
2015-08-103296538ND
2015-08-113298131ND
2015-08-113297642ND
2015-08-133301099ND