Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Blissfield

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND50ND
2021ND40ND
2022ND40ND
2023ND40ND

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

Date Lab ID Result
2018-03-20LLH71897ND
2018-05-08LLH79573ND
2018-08-08LLH98017ND
2018-10-09LLI10732ND
2019-03-19LLI29969ND
2019-06-30LLI47602ND
2019-09-04LLI61622ND
2019-10-16LLI71184ND
2020-02-04ND
2020-05-14ND
2020-08-18ND
2020-08-18ND
2020-11-09ND
2021-02-10ND
2021-05-11ND
2021-08-10ND
2021-11-15ND
2022-03-08ND
2022-06-14ND
2022-09-19ND
2022-12-12ND
2023-03-07ND
2023-06-12ND
2023-09-11ND
2023-12-11ND