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EWG's Tap Water Database — 2019 UPDATE

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Hexachlorocyclopentadiene

City of Grand Prairie

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

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND30ND
2014ND50ND
2015ND100ND
2016ND60ND
2017ND50ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-03-071203255004ND
2012-03-071203255005ND
2012-03-071203255003ND
2012-08-131208543009ND
2012-08-131208543008ND
2012-08-131208543007ND
2013-02-191302571004ND
2013-02-191302571003ND
2013-04-291304A10006ND
2014-04-23Q1412991003ND
2014-06-04Q1419331003ND
2014-06-26Q1424023042ND
2014-06-26Q1424023007ND
2014-09-10Q1442991006ND
2015-03-11Q1509064003ND
2015-06-09Q1521042002ND
2015-06-09Q1521042001ND
2015-07-14Q1526936013ND
2015-07-14Q1526936012ND
2015-07-14Q1526936011ND
2015-07-14Q1526936010ND
2015-07-14Q1526936009ND
2015-10-07Q1539391002ND
2015-10-07Q1539391001ND
2016-01-14Q1601729002ND
2016-01-14Q1601729001ND
2016-03-01Q1608611001ND
2016-04-06Q1613635009ND
2016-07-14Q1628712003ND
2016-12-05Q1652555003ND
2017-01-05Q1700632003ND
2017-01-05Q1700632017ND
2017-06-27Q1726535026ND
2017-06-27Q1726535025ND
2017-06-27Q1726535001ND