Chloromethane
High-tor Properties
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.
22
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 |
|---|---|---|---|---|
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-06-26 | DW-91131 | ND |
| 2018-06-26 | DW-91135 | ND |
| 2018-06-26 | DW-91133 | ND |
| 2019-10-29 | 9101372-03 | ND |
| 2019-10-29 | 9101372-02 | ND |
| 2019-10-29 | 9101372 | ND |
| 2020-05-06 | 0050163-03 | ND |
| 2020-05-06 | 0050164-02V | ND |
| 2020-05-06 | 0050164-01V | ND |
| 2020-09-14 | 0090571-01VOC | ND |
| 2020-11-10 | 0110439-02V | ND |
| 2021-11-15 | 1110754-04 | ND |
| 2021-11-15 | 1110754-02 | ND |
| 2021-11-15 | 1110754-03 | ND |
| 2022-01-24 | EHS2200004719-01VOC | ND |
| 2022-01-24 | EHS2200004720-SR-2 | ND |
| 2022-01-24 | EHS2200004717-01VOC | ND |
| 2022-01-24 | EHS2200004720-01VOC | ND |
| 2022-01-24 | EHS2200009066-01 | ND |
| 2022-02-17 | EHS2200009066-SR-1 | ND |
| 2023-09-27 | 23I1769-01 | ND |
| 2023-10-27 | 23J1871-01 | ND |