Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Wood River Valley Mobile Home Park

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND50ND
2020ND40ND
2021ND50ND
2022ND30ND
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

Date Lab ID Result
2018-01-16531834ND
2018-03-21540107ND
2018-04-10543658ND
2018-07-16560979ND
2018-10-30577038ND
2019-02-13596562ND
2019-04-15602874ND
2019-07-29621133ND
2019-10-15638569ND
2019-11-25648426ND
2020-01-28650689ND
2020-04-27667188ND
2020-08-24693191ND
2020-11-24708267ND
2021-01-27712752ND
2021-02-23722156ND
2021-04-07727300ND
2021-07-12745694ND
2021-10-13764236ND
2022-01-11778740ND
2022-04-12791736ND
2022-10-05828246ND
2023-01-10842493ND
2023-04-03855434ND