Chloromethane
Sawkill Trailer Park
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.
27
Samples
0
Samples exceeding legal limit (MCL)
13
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 4 | 0 | ND |
| 2019 | 0.660 ppb | 5 | 2 | ND - 2.60 ppb |
| 2020 | 4.16 ppb | 5 | 5 | 2.38 ppb - 5.94 ppb |
| 2021 | 1.70 ppb | 3 | 2 | ND - 3.48 ppb |
| 2022 | 5.21 ppb | 6 | 6 | 3.30 ppb - 7.30 ppb |
| 2023 | 3.72 ppb | 4 | 3 | ND - 6.71 ppb |
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 |
|---|---|---|
| 2018-03-31 | SK180639 | ND |
| 2018-06-27 | SM181259 | ND |
| 2018-09-30 | SA182364 | ND |
| 2018-12-31 | SM190020 | ND |
| 2019-03-31 | SM190818 | 0.700 ppb |
| 2019-06-30 | BK191534 | 2.60 ppb |
| 2019-09-29 | 10021998C | ND |
| 2019-11-12 | EHS1900056697-01-AB | ND |
| 2019-11-12 | EHS1900056697-01-POC | ND |
| 2020-03-31 | 04082038 | 2.38 ppb |
| 2020-06-30 | 07012064A | 3.05 ppb |
| 2020-09-30 | 09302018N | 5.94 ppb |
| 2020-09-30 | 09302018 | 5.94 ppb |
| 2020-12-29 | 12302013 | 3.50 ppb |
| 2021-03-31 | 04072139 | 1.62 ppb |
| 2021-06-30 | 06302194 | 3.48 ppb |
| 2021-12-31 | 01052259 | ND |
| 2022-03-07 | EHS2200011902-SR-2P | 3.30 ppb |
| 2022-03-30 | 03302225F | 4.29 ppb |
| 2022-06-30 | 07062294 | 4.90 ppb |
| 2022-09-30 | 10052261 | 5.19 ppb |
| 2022-11-16 | 11162239 | 7.30 ppb |
| 2022-12-31 | 01042369 | 6.26 ppb |
| 2023-03-01 | 03012347B | ND |
| 2023-06-30 | 07052357 | 6.64 ppb |
| 2023-09-20 | 09202322 | 6.71 ppb |
| 2023-11-29 | 11292317B | 1.52 ppb |