Chloromethane
Warrington Twp Water&sew Dept
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.
17
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 | 0.0500 ppb | 9 | 2 | ND - 0.250 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-11-11 | 830998-12862 | ND |
| 2014-11-11 | 831006-12854 | ND |
| 2014-11-11 | 831002-12854 | ND |
| 2014-11-11 | 831012-12854 | ND |
| 2014-11-11 | 831008-12862 | ND |
| 2014-11-11 | 831004-12862 | ND |
| 2014-11-11 | 831014-12854 | ND |
| 2014-11-11 | 831016-12854 | ND |
| 2015-02-09 | 842481-13389 | ND |
| 2015-05-11 | 859200-14080 | ND |
| 2015-05-11 | 859192-14080 | ND |
| 2015-05-11 | 859202-14080 | ND |
| 2015-05-11 | 859198-14080 | ND |
| 2015-05-11 | 859204-14080 | 0.250 ppb |
| 2015-05-11 | 859208-14080 | ND |
| 2015-05-11 | 859194-14080 | ND |
| 2015-08-20 | 3305503 | 0.200 ppb |