Know Your Environment. Protect Your Health.

Chloromethane

Carmel Water 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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND80ND
2023ND90ND

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
2022-05-04CL22948POCSND
2022-05-04CL22947POCSND
2022-05-04CL22946POCSND
2022-08-03CL96673POCSND
2022-08-03CL96672POCSND
2022-08-03CL96674POCSND
2022-11-01CM74680POCSND
2022-11-01CM74681POCSND
2023-01-04CN16711POCSND
2023-01-04CN16706POCSND
2023-02-01CN34080POCSND
2023-05-03CN97254POCSND
2023-05-03CN97256POCSND
2023-05-03CN97255POCSND
2023-08-01CO64611POCSND
2023-08-01CO64612POCSND
2023-08-01CO64610POCSND