Chloromethane
Calif State Polytechnical Univ - Pomona
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.
10
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
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 |
|---|---|---|
| 2014-04-07 | B4D0711-01 | ND |
| 2014-07-08 | B4G0774-01 | ND |
| 2014-10-07 | B4J0645-01 | ND |
| 2015-01-14 | B5A1214-01 | ND |
| 2018-12-04 | CA1910022_005_005-201812041250 | ND |
| 2019-12-17 | CA1910022_005_005-201912171100 | ND |
| 2020-12-08 | CA1910022_005_005-202012081210 | ND |
| 2022-06-07 | CA1910022_005_005-202206071035 | ND |
| 2022-12-06 | CA1910022_005_005-202212061050 | ND |
| 2023-12-05 | CA1910022_005_005-202312051015 | ND |