Know Your Environment. Protect Your Health.

Chloromethane

City of Sundown

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND40ND
2022ND40ND
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
2018-01-11Q1801555016ND
2018-01-11Q1801555019ND
2019-01-08Q1900776005ND
2019-01-08Q1900776007ND
2020-01-14Q2001302001ND
2020-01-14Q2001302003ND
2021-01-20Q2101443003ND
2021-04-05Q2108480010ND
2021-07-01Q2117329003ND
2021-10-05Q2127289002ND
2022-01-13Q2201435005ND
2022-01-13Q2201435007ND
2022-04-28Q2212820002ND
2022-09-20Q2228114003ND
2023-01-09Q2300847001ND
2023-04-03Q2312040006ND