Chloromethane
Bicknell Municipal 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.
11
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | 14.0 ppb | 1 | 1 | 14.0 ppb |
| 2021 | ND | 4 | 0 | ND |
| 2022 | 0.478 ppb | 4 | 2 | ND - 1.30 ppb |
| 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 |
|---|---|---|
| 2018-11-08 | 18017992001RV-1804 | ND |
| 2019-02-13 | 19002243001RV-1901 | ND |
| 2020-02-10 | 20002097001RV-2001 | 14.0 ppb |
| 2021-01-25 | 21001631-001-0001 | ND |
| 2021-04-06 | 21006360-001-0001 | ND |
| 2021-07-19 | 21013950-001-0003 | ND |
| 2021-10-05 | 21019917-001-0004 | ND |
| 2022-03-30 | 22005510-001-0001 | 1.30 ppb |
| 2022-04-06 | 22006016-001-0002 | 0.610 ppb |
| 2022-09-14 | 22017362-001-0002 | ND |
| 2022-10-04 | 50328007003 | ND |