Know Your Environment. Protect Your Health.

Pentachlorophenol

Harris County Municipal Utility District 344

NOTE: Harris County Municipal Utility District 344 purchases water from City of Houston which is required to test for pentachlorophenol. Sample information shown below was taken by City of Houston.

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

 

87

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND100ND
2020ND340ND
2021ND10ND
2022ND90ND
2023ND320ND

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: Harris County Municipal Utility District 344 purchases water from City of Houston which is required to test for pentachlorophenol. Sample information shown below was taken by City of Houston.

Date Lab ID Result
2018-01-18AE09316ND
2019-01-15AE50229ND
2019-01-15AE50230ND
2019-01-16AE50236ND
2019-03-06AE57434ND
2019-03-06AE57435ND
2019-04-10AE62131ND
2019-07-25AE76036ND
2019-07-25AE76035ND
2019-09-23AE84274ND
2019-09-23AE84275ND
2020-03-16AF03030ND
2020-03-16AF03031ND
2020-03-16AF03034ND
2020-05-26AF12660ND
2020-06-11AF15134ND
2020-06-11AF15135ND
2020-06-29AF17334ND
2020-06-29AF17329ND
2020-06-29AF17332ND
2020-06-29AF17333ND
2020-08-27AF25709ND
2020-10-19AF31179ND
2020-10-19AF31177ND
2020-10-19AF31176ND
2020-10-19AF31175ND
2020-10-19AF31174ND
2020-10-26AF31954ND
2020-10-26AF31953ND
2020-10-26AF31952ND
2020-10-26AF31951ND
2020-10-26AF31950ND
2020-10-26AF31949ND
2020-11-04AF33311ND
2020-11-04AF33310ND
2020-11-04AF33309ND
2020-11-04AF33308ND
2020-11-04AF33307ND
2020-11-05AF33522ND
2020-11-05AF33521ND
2020-11-05AF33520ND
2020-11-05AF33519ND
2020-11-05AF33523ND
2020-11-30AF35877ND
2020-12-04AF36735ND
2021-02-10AF43551ND
2022-03-23AF90292ND
2022-03-23AF90296ND
2022-03-24AF90560ND
2022-03-24AF90559ND
2022-03-24AF90558ND
2022-04-06AF92285ND
2022-08-16AG09523ND
2022-08-16AG09524ND
2022-08-17AG09784ND
2023-01-31AG26896ND
2023-01-31AG26906ND
2023-04-06AG35918ND
2023-04-06AG35917ND
2023-04-06AG35907ND
2023-04-06AG35905ND
2023-04-06AG35904ND
2023-04-06AG35906ND
2023-05-16AG40899ND
2023-05-17AG40898ND
2023-06-27AG46277ND
2023-06-27AG46280ND
2023-06-27AG46278ND
2023-06-27AG46276ND
2023-06-27AG46275ND
2023-06-27AG46274ND
2023-10-10AG59190ND
2023-10-10AG59188ND
2023-10-10AG59187ND
2023-10-10AG59186ND
2023-10-10AG59185ND
2023-10-11AG59493ND
2023-10-11AG59496ND
2023-10-11AG59495ND
2023-10-11AG59494ND
2023-10-11AG59492ND
2023-10-11AG59491ND
2023-11-30AG65061ND
2023-12-18AG66889ND
2023-12-18AG66890ND
2023-12-18AG66892ND
2023-12-18AG66894ND