Know Your Environment. Protect Your Health.

Chloromethane

North Cherokee Water Supply Corporation

NOTE: North Cherokee Water Supply Corporation purchases water from City of Jacksonville which is required to test for chloromethane. Sample information shown below was taken by City of Jacksonville.

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.

 

51

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
2014ND120ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

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: North Cherokee Water Supply Corporation purchases water from City of Jacksonville which is required to test for chloromethane. Sample information shown below was taken by City of Jacksonville.

Date Lab ID Result
2014-05-14201405160361AMND
2014-05-14201405160371AMND
2014-05-14201405160299AMND
2014-05-14201405160434AMND
2014-05-14201405160373AMND
2014-08-21201408220513AMND
2014-11-18201411190586AMND
2014-11-18201411190427AMND
2014-11-18201411190579AMND
2014-11-18201411190466AMND
2014-11-18201411190298AMND
2014-11-18201411190272AMND
2015-02-26201502270193AMND
2015-02-26201502270199AMND
2018-09-13Q1836630003ND
2018-11-12Q1845099003ND
2018-11-12Q1845099007ND
2018-11-12Q1845099011ND
2018-11-12Q1845099015ND
2019-01-30Q1904613014ND
2019-01-30Q1904613016ND
2019-01-30Q1904613017ND
2019-01-30Q1904613019ND
2019-07-02Q1941674001ND
2019-07-02Q1941674003ND
2020-01-27Q2002874011ND
2020-01-27Q2002874013ND
2020-01-27Q2002874015ND
2020-01-27Q2002874017ND
2020-05-07Q2018089003ND
2020-07-01Q2026151001ND
2021-07-12Q2118022007ND
2021-07-12Q2118022009ND
2021-07-12Q2118022011ND
2021-07-12Q2118022013ND
2021-07-12Q2118022015ND
2021-07-12Q2118022017ND
2022-04-07Q2210862004ND
2022-04-07Q2210862006ND
2022-04-07Q2210862008ND
2022-04-07Q2210862010ND
2022-08-25Q2225372001ND
2022-12-01Q2235911007ND
2022-12-01Q2235911009ND
2023-01-30Q2304172002ND
2023-04-27Q2315893005ND
2023-07-03Q2326028004ND
2023-09-28Q2341783012ND
2023-09-28Q2341783010ND
2023-09-28Q2341783008ND
2023-09-28Q2341783006ND