Chloromethane
Consolidated Irrig District 19 System 2
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.
11
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 |
|---|---|---|---|---|
| 2015 | ND | 8 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2015-04-23 | 150424022-004 | ND |
| 2015-04-23 | 150424022-003 | ND |
| 2015-04-23 | 150424022-001 | ND |
| 2015-04-23 | 150424022-002 | ND |
| 2015-10-13 | 151016001-004 | ND |
| 2015-10-13 | 151016001-002 | ND |
| 2015-10-13 | 151016001-001 | ND |
| 2015-10-13 | 151016001-003 | ND |
| 2022-08-09 | 4327005 | ND |
| 2023-03-28 | 4436977 | ND |
| 2023-03-28 | 4436980 | ND |