Know Your Environment. Protect Your Health.

Pentachlorophenol

City of Puyallup

NOTE: City of Puyallup purchases water from City of Tacoma which is required to test for pentachlorophenol. Sample information shown below was taken by City of Tacoma.

Pentachlorophenol is a carcinogenic chemical used as a wood preservative. It harms developing fetuses, and causes immune suppression and hormone disruption.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND80ND
2022ND30ND
2023ND60ND

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

NOTE: City of Puyallup purchases water from City of Tacoma which is required to test for pentachlorophenol. Sample information shown below was taken by City of Tacoma.

Date Lab ID Result
2021-06-214149607ND
2021-06-214149606ND
2021-06-214149605ND
2021-06-304142829ND
2021-06-304142830ND
2021-07-214157684ND
2021-07-214157695ND
2021-07-224157703ND
2022-02-014258884ND
2022-09-154369966ND
2022-11-154383023ND
2023-09-054543470ND
2023-09-064543472ND