Know Your Environment. Protect Your Health.

Chloromethane

Cedar Point

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

8

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
20181.85 ppb21ND - 3.70 ppb
20193.10 ppb332.00 ppb - 4.30 ppb
20201.24 ppb52ND - 3.30 ppb
20212.72 ppb53ND - 6.50 ppb
2022ND50ND
20230.460 ppb51ND - 2.30 ppb

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
2018-02-15AE14107ND
2018-03-28AE206423.70 ppb
2019-02-28AE565604.30 ppb
2019-02-28AE565962.00 ppb
2019-05-28AE682323.00 ppb
2020-02-18AE987422.90 ppb
2020-02-18AE98744ND
2020-06-08AF144163.30 ppb
2020-09-01AF26048ND
2020-11-05AF33500ND
2021-03-11AF46545ND
2021-03-11AF46547ND
2021-05-24AF551393.90 ppb
2021-09-13AF695486.50 ppb
2021-11-02AF756133.20 ppb
2022-01-31AF82593ND
2022-01-31AF82597ND
2022-04-19AF93661ND
2022-08-18AG10060ND
2022-12-20AG22382ND
2023-02-21AG29727ND
2023-02-21AG29729ND
2023-04-19AG373712.30 ppb
2023-09-06AG55147ND
2023-12-21AG67280ND