Know Your Environment. Protect Your Health.

Chloromethane

Tell City Water Department

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND20ND
2020ND40ND
20210.138 ppb51ND - 0.690 ppb
2022ND50ND
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
2019-06-0419008196002RV-1902ND
2019-06-0419008196001RV-1902ND
2020-03-1120003740001RV-2001ND
2020-05-0520006472001RV-2002ND
2020-08-0520011751-001ND
2020-11-1620018757-001-0016ND
2021-02-0921002715-001-00010.690 ppb
2021-05-0421008363-001-0005ND
2021-05-1021008766-001-0009ND
2021-08-1621016155-001-0002ND
2021-11-0921022468-001-0007ND
2022-02-0722002390-001-0007ND
2022-05-0422007983-001-0005ND
2022-06-1322010634-001-0003ND
2022-08-0922014974-001-0007ND
2022-11-2122022161-001-0001ND
2023-02-0723002399-001-0003ND
2023-08-0823014658-001-0009ND