Chloromethane
Clark Public Utilities
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.
50
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 | 2 | 0 | ND |
| 2014 | ND | 9 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 11 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2013-09-17 | A3I0852-05A | ND |
| 2013-09-17 | A3I0852-01A | ND |
| 2014-03-26 | A4C0715-01A | ND |
| 2014-03-26 | A4C0715-05A | ND |
| 2014-05-13 | A4E0222-01A | ND |
| 2014-05-13 | A4E0222-06A | ND |
| 2014-06-11 | A4E2186-01A | ND |
| 2014-11-19 | A4J2055-01A | ND |
| 2014-11-19 | A4J2055-06A | ND |
| 2014-11-20 | A4J2062-01A | ND |
| 2014-12-10 | A4K2008-01A | ND |
| 2015-05-19 | A5D2282-01A | ND |
| 2015-05-19 | A5D2279-01A | ND |
| 2015-06-11 | A5E2086-11A | ND |
| 2015-06-11 | A5E2086-06A | ND |
| 2015-06-11 | A5E2086-01A | ND |
| 2015-11-19 | A5J2330-01A | ND |
| 2015-12-21 | A5K1239-01A | ND |
| 2015-12-21 | A5K1239-06A | ND |
| 2015-12-21 | A5K1239-11A | ND |
| 2018-08-01 | ND | |
| 2018-08-01 | ND | |
| 2018-08-01 | ND | |
| 2018-08-01 | ND | |
| 2018-08-01 | ND | |
| 2018-08-28 | ND | |
| 2018-08-28 | ND | |
| 2018-09-18 | ND | |
| 2018-09-18 | ND | |
| 2018-09-18 | ND | |
| 2018-11-18 | ND | |
| 2019-02-24 | ND | |
| 2019-02-24 | ND | |
| 2019-07-22 | ND | |
| 2019-09-05 | ND | |
| 2021-06-30 | 4143007 | ND |
| 2021-08-02 | 4169145 | ND |
| 2021-08-02 | 4169136 | ND |
| 2022-07-27 | 4328694 | ND |
| 2022-07-28 | 4328702 | ND |
| 2022-07-28 | 4328695 | ND |
| 2022-07-28 | 4328685 | ND |
| 2022-08-03 | 4328676 | ND |
| 2022-08-03 | 4328680 | ND |
| 2022-08-03 | 4328682 | ND |
| 2023-05-23 | 4545879 | ND |
| 2023-06-12 | 4473923 | ND |
| 2023-06-12 | 4473922 | ND |
| 2023-06-12 | 4473920 | ND |
| 2023-06-12 | 4473924 | ND |