Know Your Environment. Protect Your Health.

Chloromethane

Villager Apartments

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.890 ppb110.890 ppb
20191.80 ppb111.80 ppb
20204.51 ppb114.51 ppb
20214.70 ppb114.70 ppb
2022ND10ND
20233.10 ppb113.10 ppb

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
2018-02-2618P0029360.890 ppb
2019-02-05EHS1900007468-SR-2OC1.80 ppb
2020-03-0920P0037694.51 ppb
2021-03-31L2116080-14.70 ppb
2022-03-16EHS2200008607-1POCND
2023-03-20EHS2300014349-01POC3.10 ppb