Know Your Environment. Protect Your Health.

Hexachlorocyclopentadiene

Jefferson Parish

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0177 ppb126ND - 0.0400 ppb
20190.0213 ppb126ND - 0.0490 ppb
2020ND60ND
20210.0163 ppb63ND - 0.0360 ppb
20220.00917 ppb62ND - 0.0280 ppb
2023ND30ND

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
2018-03-15353803930030.0330 ppb
2018-03-1535380393001ND
2018-03-15353803930030.0330 ppb
2018-03-15353803930020.0330 ppb
2018-03-1535380393001ND
2018-03-15353803930020.0330 ppb
2018-08-1535411635001ND
2018-08-15354116350020.0400 ppb
2018-08-1535411635003ND
2018-08-1535411635003ND
2018-08-15354116350020.0400 ppb
2018-08-1535411635001ND
2019-02-2735451094001ND
2019-02-2735451093001ND
2019-02-2735451088001ND
2019-02-2735451088001ND
2019-02-2735451093001ND
2019-02-2735451094001ND
2019-08-01354866560010.0490 ppb
2019-08-01354866560010.0490 ppb
2019-08-01354866540010.0400 ppb
2019-08-01354866590010.0390 ppb
2019-08-01354866540010.0400 ppb
2019-08-01354866590010.0390 ppb
2020-03-2635540013001ND
2020-03-2635540015001ND
2020-03-2635540021001ND
2020-10-0835583706001ND
2020-10-0835583707001ND
2020-10-0835583709001ND
2021-01-2835608086001ND
2021-01-2835608082001ND
2021-01-2835608080001ND
2021-10-14356710980010.0290 ppb
2021-10-14356710960010.0330 ppb
2021-10-14356710950010.0360 ppb
2022-01-2535692989001ND
2022-01-2535692990001ND
2022-01-2535692991001ND
2022-07-27357356940010.0270 ppb
2022-07-2735735695001ND
2022-07-27357356960010.0280 ppb
2023-01-1135772258001ND
2023-01-1135772259001ND
2023-01-1135772260001ND