Pentachlorophenol
City of Troutdale
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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 14 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 12 | 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 |
|---|---|---|
| 2020-07-29 | VDG012105-S | ND |
| 2020-07-29 | VDG012109-S | ND |
| 2020-07-29 | VDG012111-S | ND |
| 2020-07-29 | VDG012113-S | ND |
| 2020-07-29 | VDG012101-S | ND |
| 2020-07-29 | VDG012107-S | ND |
| 2020-07-29 | VDG012103-S | ND |
| 2020-10-13 | VDI062001-S | ND |
| 2020-10-13 | VDI062007-S | ND |
| 2020-10-13 | VDI062009-S | ND |
| 2020-10-13 | VDI062011-S | ND |
| 2020-10-13 | VDI062013-S | ND |
| 2020-10-13 | VDI062005-S | ND |
| 2020-10-13 | VDI062003-S | ND |
| 2022-05-31 | 22-006289-0003-S | ND |
| 2022-05-31 | 22-006289-0002-S | ND |
| 2022-05-31 | 22-006289-0006-S | ND |
| 2022-05-31 | 22-006289-0005-S | ND |
| 2022-05-31 | 22-006289-0001-S | ND |
| 2022-05-31 | 22-006289-0004-S | ND |
| 2022-08-30 | 22-010340-0002-S | ND |
| 2022-08-30 | 22-010340-0003-S | ND |
| 2022-08-30 | 22-010340-0004-S | ND |
| 2022-08-30 | 22-010340-0001-S | ND |
| 2022-08-30 | 22-010340-0006-S | ND |
| 2022-08-30 | 22-010340-0005-S | ND |