Chloromethane
Lakewood Water District
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.
35
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 |
|---|---|---|---|---|
| 2013 | ND | 10 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 11 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2013-05-07 | 201305080343AM | ND |
| 2013-05-07 | 201305080435AM | ND |
| 2013-05-07 | 201305080351AM | ND |
| 2013-05-08 | 201305090196AM | ND |
| 2013-05-08 | 201305090180AM | ND |
| 2013-10-22 | 201310230473AM | ND |
| 2013-10-22 | 201310230471AM | ND |
| 2013-10-22 | 201310230501AM | ND |
| 2013-10-23 | 201310240333AM | ND |
| 2013-10-23 | 201310240533AM | ND |
| 2018-03-22 | ND | |
| 2018-07-12 | ND | |
| 2018-07-12 | ND | |
| 2018-07-12 | ND | |
| 2018-07-25 | ND | |
| 2018-07-25 | ND | |
| 2018-07-25 | ND | |
| 2018-08-27 | ND | |
| 2019-06-19 | ND | |
| 2019-06-19 | ND | |
| 2019-06-19 | ND | |
| 2019-06-19 | ND | |
| 2019-06-19 | ND | |
| 2019-06-19 | ND | |
| 2019-06-21 | ND | |
| 2019-06-21 | ND | |
| 2019-06-21 | ND | |
| 2019-06-21 | ND | |
| 2019-07-23 | ND | |
| 2021-05-05 | 4115955 | ND |
| 2021-05-05 | 4115227 | ND |
| 2022-05-11 | 4286299 | ND |
| 2022-05-11 | 4286297 | ND |
| 2022-05-11 | 4286300 | ND |
| 2022-08-11 | 4331437 | ND |