Know Your Environment. Protect Your Health.

Chloromethane

Northfield

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019ND30ND
2020ND50ND
2021ND10ND
2022N/A00N/A
2023ND40ND

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
2014-12-092045032003ND
2014-12-092045032009ND
2014-12-092045032006ND
2015-06-162077327006ND
2015-06-162077327003ND
2015-06-162077327009ND
2018-10-2218J1084-01ND
2019-01-1819A0676-03ND
2019-06-2019F1478-03ND
2019-07-2519G1899-01ND
2020-02-1220B0724-01ND
2020-10-2720J1405-04ND
2020-10-2720J1405-03ND
2020-10-2720J1405-02ND
2020-10-2720J1404-01ND
2021-02-2521B1436-01ND
2023-05-0923E0759-01ND
2023-05-0923E0759-02ND
2023-05-0923E0759-03ND
2023-05-0923E0759-04ND