Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

Walton County Water & Sewer Auth.

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND90ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2015-01-2935173770005AMND
2015-01-2935173770001AMND
2015-01-2935173770003AMND
2015-07-065061530-03ND
2015-07-065061530-01ND
2015-07-065061530-02ND
2015-08-1821760 82015ND
2015-08-1814666 82015ND
2015-08-1814668 82015ND