Chloromethane
JBLM Lewis
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 |
|---|---|---|---|---|
| 2014 | ND | 8 | 0 | ND |
| 2015 | ND | 8 | 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 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-06-09 | WA97-SE1-14-10670-25604 | ND |
| 2014-06-10 | WA97-SE1-14-11079-26501 | ND |
| 2014-06-10 | WA97-SE1-14-11079-26500 | ND |
| 2014-06-11 | WA97-SE1-14-11079-26499 | ND |
| 2014-12-29 | 3163595 | ND |
| 2014-12-29 | 3163586 | ND |
| 2014-12-29 | 3163642 | ND |
| 2014-12-29 | 3163629 | ND |
| 2015-03-17 | WA97-SE1-15-05041-11616 | ND |
| 2015-03-17 | WA97-SE1-15-05041-11618 | ND |
| 2015-03-17 | WA97-SE1-15-05041-11620 | ND |
| 2015-03-18 | WA97-SE1-15-05320-12207 | ND |
| 2015-09-02 | 3314342 | ND |
| 2015-09-02 | 3314377 | ND |
| 2015-09-02 | 3314355 | ND |
| 2015-09-14 | 3322498 | ND |
| 2018-05-29 | ND | |
| 2019-12-16 | ND | |
| 2021-09-22 | 4187141 | ND |
| 2021-11-19 | 4207600 | ND |
| 2023-04-13 | 4443139 | ND |
| 2023-04-13 | 4443139 | ND |