Know Your Environment. Protect Your Health.

Chloromethane

City of Alto

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND30ND
2020ND20ND
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
2018-05-29Q1821302006ND
2018-12-11Q1850897004ND
2019-03-20Q1911720002ND
2019-03-29Q1912916002ND
2019-05-20Q1927027002ND
2020-10-22Q2041198001ND
2020-10-22Q2041198003ND
2021-10-14Q2128845006ND
2021-10-14Q2128845008ND
2022-03-03Q2207391003ND
2022-03-03Q2207391005ND
2023-04-20Q2314880004ND
2023-04-20Q2314880006ND