Chloromethane
NJ Water Supply Authority Manasquan
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.
15
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 | 1 | 0 | ND |
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2013-12-03 | 1061943003 | ND |
| 2014-03-04 | 1074262003 | ND |
| 2014-09-02 | 2026740003 | ND |
| 2018-03-27 | 380327077 | ND |
| 2018-03-27 | 380327078 | ND |
| 2018-03-27 | 380327079 | ND |
| 2018-09-04 | 380904737 | ND |
| 2018-09-04 | 380904736 | ND |
| 2018-09-04 | 380904735 | ND |
| 2019-03-26 | 390326704 | ND |
| 2019-09-10 | 390910713 | ND |
| 2019-09-11 | 390912720 | ND |
| 2020-03-17 | 3093847001 | ND |
| 2020-09-17 | 200917023-02 | ND |
| 2021-03-09 | 210309060-02 | ND |