Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

State College Boro Water 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015N/A00N/A
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
2014-03-11201403130410AMND
2014-03-11201403130389AMND
2014-03-11201403130418AMND
2014-03-11201403130337AMND
2014-03-11201403130197AMND
2014-06-10201406120326AMND
2014-09-15201409180337AMND
2014-09-15201409170798AMND
2014-09-15201409180342AMND
2014-09-15201409170857AMND
2014-09-15201409170861AMND
2014-12-08201412090765AMND