Know Your Environment. Protect Your Health.

Chloromethane

Posey Township Water Corporation

NOTE: Posey Township Water Corporation purchases water from Patoka Lake Regional Water which is required to test for chloromethane. Sample information shown below was taken by Patoka Lake Regional Water.

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND30ND
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019ND10ND
2020ND10ND
2021N/A00N/A
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

NOTE: Posey Township Water Corporation purchases water from Patoka Lake Regional Water which is required to test for chloromethane. Sample information shown below was taken by Patoka Lake Regional Water.

Date Lab ID Result
2013-05-072820633ND
2013-08-072873112ND
2013-11-052925174ND
2014-02-062969276ND
2018-08-08425304RV-1803ND
2019-08-27463440RV-1903ND
2020-06-094645714ND