Chloromethane
New Water Supply Corporation
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.
24
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-06-06 | Q1822507003 | ND |
| 2018-06-06 | Q1822507005 | ND |
| 2018-06-06 | Q1822507001 | ND |
| 2018-09-19 | Q1837597003 | ND |
| 2019-06-03 | Q1930848003 | ND |
| 2019-06-03 | Q1930848005 | ND |
| 2019-09-23 | Q1968123001 | ND |
| 2019-12-10 | Q1979549001 | ND |
| 2020-11-09 | Q2043745001 | ND |
| 2020-11-09 | Q2043745003 | ND |
| 2020-11-09 | Q2043745007 | ND |
| 2020-11-09 | Q2043745009 | ND |
| 2021-04-15 | Q2109763009 | ND |
| 2021-04-15 | Q2109763015 | ND |
| 2021-04-15 | Q2109763013 | ND |
| 2021-04-15 | Q2109763011 | ND |
| 2022-05-09 | Q2213779004 | ND |
| 2022-05-09 | Q2213779006 | ND |
| 2022-05-09 | Q2213779009 | ND |
| 2022-05-09 | Q2213779011 | ND |
| 2023-06-15 | Q2322767004 | ND |
| 2023-06-15 | Q2322767006 | ND |
| 2023-06-15 | Q2322767016 | ND |
| 2023-06-15 | Q2322767018 | ND |