Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Buena Vista Bethel Special Utility District

NOTE: Buena Vista Bethel Special Utility District purchases water from City of Waxahachie which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by City of Waxahachie.

Hexachlorocyclopentadiene was historically used for the manufacture of currently banned pesticides, such as endrin, dieldrin and chlordane. It’s still used for production of flame retardants, resins and plastics.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND20ND
2021ND40ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 2 ppb

The EWG Health Guideline of 2 ppb for hexachlorocyclopentadiene 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 harm to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 50 ppb

The legal limit for hexachlorocyclopentadiene, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

NOTE: Buena Vista Bethel Special Utility District purchases water from City of Waxahachie which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by City of Waxahachie.

Date Lab ID Result
2018-01-25Q1802982003ND
2018-01-25Q1802982012ND
2019-04-29Q1916965001ND
2019-04-29Q1916965004ND
2020-08-17Q2032738001ND
2020-08-17Q2032738006ND
2021-09-16Q2125453001ND
2021-09-16Q2125453006ND
2022-01-12Q2201052001ND
2022-01-12Q2201052005ND
2023-09-05Q2338122001ND
2023-11-20Q2349758005ND