Know Your Environment. Protect Your Health.

Chloromethane

Alpine Manor Home For Adults

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)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20194.10 ppb114.10 ppb
20204.70 ppb114.70 ppb
20213.50 ppb221.40 ppb - 5.60 ppb
20224.50 ppb114.50 ppb
20233.60 ppb222.40 ppb - 4.80 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
2019-09-09EHS1900045299-POC4.10 ppb
2020-12-14EHS2000286572-SR-14.70 ppb
2021-08-17EHS2100082063POC5.60 ppb
2021-09-13EHS2100088686-011.40 ppb
2022-07-05EHS2200031120-SR-14.50 ppb
2023-08-14EHS2300047184-SR22.40 ppb
2023-09-13EHS2300053516-014.80 ppb