Know Your Environment. Protect Your Health.

Chloromethane

City of Alpine

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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
2018-07-17Q1828669004ND
2018-07-17Q1828669005ND
2018-07-17Q1828669008ND
2018-07-17Q1828669002ND
2019-06-18Q1937877001ND
2019-06-18Q1937877006ND
2019-06-18Q1937877008ND
2019-06-18Q1937877010ND
2020-06-01Q2021525017ND
2020-06-01Q2021525019ND
2020-06-01Q2021525021ND
2020-06-01Q2021525023ND
2021-07-13Q2118334003ND
2021-07-13Q2118334009ND
2021-07-13Q2118334007ND
2021-07-13Q2118334005ND
2022-09-19Q2228089003ND
2022-09-19Q2228089005ND
2022-09-19Q2228089007ND
2022-09-19Q2228089009ND
2023-07-24Q2329551005ND
2023-07-24Q2329551007ND
2023-07-24Q2329551010ND
2023-07-24Q2329551012ND