Know Your Environment. Protect Your Health.

Chloromethane

East Orange County Water District - Rz

NOTE: East Orange County Water District - Rz purchases water from East Orange County Water District - Wz which is required to test for chloromethane. Sample information shown below was taken by East Orange County Water District - Wz.

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND50ND
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

NOTE: East Orange County Water District - Rz purchases water from East Orange County Water District - Wz which is required to test for chloromethane. Sample information shown below was taken by East Orange County Water District - Wz.

Date Lab ID Result