Know Your Environment. Protect Your Health.

Chloromethane

Altoona Waterworks

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.

 

29

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
2018ND50ND
2019ND50ND
2020ND80ND
2021ND50ND
2022ND40ND
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
2018-03-121044559ND
2018-06-191062457ND
2018-06-191062452ND
2018-09-181081371ND
2018-12-171097851ND
2019-03-111108740ND
2019-06-181128839ND
2019-06-181128844ND
2019-09-161148215ND
2019-12-091164494ND
2020-06-161193784ND
2020-06-161193781ND
2020-06-161193780ND
2020-06-161193783ND
2020-06-161193782ND
2020-06-161193785ND
2020-09-151214813ND
2020-12-151232451ND
2021-03-151243823ND
2021-03-151243823ND
2021-06-151259378ND
2021-09-071275724ND
2021-11-081288394ND
2022-01-191296685ND
2022-05-031311124ND
2022-09-211338361ND
2022-10-201345196ND
2023-01-25CB00795-02ND
2023-01-26CB00861-02ND