Pentachlorophenol
Aquarion Water Company of Connecticut - Simsbury System
Pentachlorophenol is a carcinogenic chemical used as a wood preservative. It harms developing fetuses, and causes immune suppression and hormone disruption.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 12 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 7 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.3 ppb
The EWG Health Guideline of 0.3 ppb for pentachlorophenol was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL): 1 ppb
The legal limit for pentachlorophenol, established in 1991, was based on analytical detection limits at the time that the standard was set.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-03-06 | 201902902-SOC | ND |
| 2019-03-06 | 201902896-SOC | ND |
| 2019-03-06 | 201902898-SOC | ND |
| 2019-03-06 | 201902900-SOC | ND |
| 2019-03-06 | 201902905-SOC | ND |
| 2019-03-06 | 201902893-SOC | ND |
| 2019-10-08 | 201916352-SOC | ND |
| 2019-10-08 | 201916359-SOC | ND |
| 2019-10-08 | 201916354-SOC | ND |
| 2019-10-08 | 201916350-SOC | ND |
| 2019-10-08 | 201916356-SOC | ND |
| 2019-10-08 | 201916347-SOC | ND |
| 2022-06-07 | 202209126-SOC | ND |
| 2022-06-07 | 202209130-SOC | ND |
| 2022-06-07 | 202209128-SOC | ND |
| 2022-08-02 | 202213380-SOC | ND |
| 2022-08-02 | 202213378-SOC | ND |
| 2022-08-30 | 202215095-SOC | ND |
| 2022-10-05 | 202217739-SOC | ND |