Know Your Environment. Protect Your Health.

Chloromethane

Lincoln County Board of Public Utilities #1

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019N/A00N/A
2020N/A00N/A
2021ND30ND
2022N/A00N/A
2023N/A00N/A

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 Result
2014-09-22ND
2014-09-22ND
2014-09-22ND
2014-09-22ND
2014-12-15ND
2014-12-15ND
2014-12-15ND
2014-12-15ND
2015-03-16ND
2015-03-16ND
2015-03-16ND
2015-03-16ND
2015-06-22ND
2015-06-23ND
2015-06-23ND
2015-07-07ND
2018-09-05ND
2018-09-05ND
2018-09-05ND
2021-08-25ND
2021-08-25ND
2021-08-25ND