Know Your Environment. Protect Your Health.

Chloromethane

Somers Consolidated Water District #1

NOTE: Somers Consolidated Water District #1 purchases water from Yorktown Consoldated Water District #1 which is required to test for chloromethane. Sample information shown below was taken by Yorktown Consoldated Water District #1.

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND30ND
2021ND30ND
2022ND30ND
2023ND70ND

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: Somers Consolidated Water District #1 purchases water from Yorktown Consoldated Water District #1 which is required to test for chloromethane. Sample information shown below was taken by Yorktown Consoldated Water District #1.

Date Lab ID Result
2020-04-23AW07597-POCSND
2020-11-24AW22650-POCSND
2020-11-24AW22654-POCSND
2021-04-14AX07015-POCSND
2021-11-08AX23171-POCSND
2021-11-18AX23169-POCSND
2022-04-12AY06060-POCND
2022-04-12AY06060-POCSND
2022-11-01AY19737-POCSND
2022-11-01AY19732-POCSND
2023-04-03AZ05712-POCSND
2023-11-01AZ20246-POCSND
2023-11-01AZ20248-POCSND