Know Your Environment. Protect Your Health.

Chloromethane

Lancaster Water Company

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.

 

12

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
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
2018-07-18CA1900808_001_001-201807181135ND
2018-07-18CA1900808_002_002-201807181150ND
2019-07-17CA1900808_001_001-201907171120ND
2019-07-17CA1900808_002_002-201907171123ND
2020-07-15CA1900808_001_001-202007151105ND
2020-07-15CA1900808_002_002-202007151110ND
2021-07-21CA1900808_001_001-202107211210ND
2021-07-21CA1900808_002_002-202107211220ND
2022-07-20CA1900808_002_002-202207201145ND
2022-07-20CA1900808_001_001-202207201150ND
2023-07-19CA1900808_001_001-202307191235ND
2023-07-19CA1900808_002_002-202307191238ND