Know Your Environment. Protect Your Health.

Pentachlorophenol

Guilford Water Authority

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND60ND
2021N/A00N/A
2022N/A00N/A
2023ND100ND

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
2018-05-298055384-01ND
2018-09-048091925-01ND
2018-12-118122846-01ND
2019-03-059032320-01ND
2020-06-0922559599.00ND
2020-06-0922559569.00ND
2020-06-0922559539.00ND
2020-09-0923136541.00ND
2020-09-0923136557.00ND
2020-09-0923136587.00ND
2023-05-1729053235.00ND
2023-05-1729053251.00ND
2023-05-1729053267.00ND
2023-05-2429053425.00ND
2023-05-2429053392.00ND
2023-07-1829651147.00ND
2023-07-1829651239.00ND
2023-07-1829651159.00ND
2023-08-0129651273.00ND
2023-08-0129651220.00ND