Chloromethane
Scarsdale Water Department
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.
16
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 | 6 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-08-20 | 31716 082014 | ND |
2014-08-20 | 31717 082014 | ND |
2014-11-20 | 31717 112014 | ND |
2014-11-20 | 31716 2014 | ND |
2014-12-01 | A24568POCS | ND |
2014-12-01 | AQ24572POCS | ND |
2015-05-20 | 31716 072015 | ND |
2015-05-21 | 31717 072015 | ND |
2016-09-06 | AS19152 POC SCAR | ND |
2016-09-06 | AS19147 SCARS | ND |
2017-11-13 | AT23823POC SCARS | ND |
2017-11-13 | AT23822 POC SCAR | ND |
2018-09-24 | AU20757SCARS POC | ND |
2018-09-24 | AU20758SCARS POC | ND |
2019-11-12 | AV23849A POCS | ND |
2019-11-13 | AV23866A POCS | ND |