Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Decatur Waterworks

NOTE: Decatur Waterworks purchases water from Benton - Washington Regional Public Water Authority which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by Benton - Washington Regional Public Water Authority.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019N/A00N/A
2020ND20ND
2021ND10ND
2022N/A00N/A
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: Decatur Waterworks purchases water from Benton - Washington Regional Public Water Authority which is required to test for hexachlorocyclopentadiene. Sample information shown below was taken by Benton - Washington Regional Public Water Authority.

Date Lab ID Result
2018-01-2418025006101ND
2018-02-2718059002001ND
2020-01-0720008000406ND
2020-06-2420177002601ND
2023-01-02O204668-OGC-1ND
2023-04-11O207787-OGC-1ND