Know Your Environment. Protect Your Health.

Chloromethane

Blackjack Water Supply Corporation

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND40ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-03-22Q1811649001ND
2018-03-22Q1811649011ND
2019-05-21Q1927030006ND
2019-05-21Q1927030008ND
2020-03-09Q2008429001ND
2020-03-09Q2008429003ND
2020-05-07Q2018092003ND
2020-07-30Q2029903003ND
2021-09-29Q2126705005ND
2021-09-29Q2126705007ND
2022-06-13Q2216378006ND
2022-06-13Q2216378008ND
2023-04-03Q2312018003ND
2023-04-03Q2312018005ND