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EWG's Tap Water Database — 2019 UPDATE

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Hexachlorocyclopentadiene

North Penn Water Authority

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND240ND
2015ND20ND
2016ND30ND
2017ND280ND

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
2014-04-2214040589-01ND
2014-04-2214030712-01ND
2014-04-2214030714-01ND
2014-04-2214030715-01ND
2014-04-2214040590-01ND
2014-04-2814040582-01ND
2014-04-2914040579-01ND
2014-04-2914030719-01ND
2014-04-2914030716-01ND
2014-04-2914030718-01ND
2014-05-1914041348-01ND
2014-06-0914060594-01ND
2014-07-071425946ND
2014-07-071425942ND
2014-07-071425943ND
2014-07-071425953ND
2014-07-071425949ND
2014-07-211427975ND
2014-07-211427976ND
2014-08-041431083ND
2014-08-2514082298-01ND
2014-08-2514082297-01ND
2014-08-2514082296-01ND
2014-08-2514082295-01ND
2015-07-0213013253ND
2015-12-0913633933ND
2016-09-1914908636ND
2016-12-2715372313ND
2016-12-2715372295ND
2017-01-1115517893ND
2017-04-0515937071ND
2017-04-0515937107ND
2017-04-0515937000ND
2017-04-0515937143ND
2017-04-0515937036ND
2017-04-0515936965ND
2017-04-0515937178ND
2017-04-1915937850ND
2017-04-1915937886ND
2017-04-1915937994ND
2017-04-1915938030ND
2017-04-1915937958ND
2017-04-1915937922ND
2017-07-1216414023ND
2017-07-1216414059ND
2017-07-1216413988ND
2017-07-1216414095ND
2017-07-1216413882ND
2017-07-1216413917ND
2017-07-1216413952ND
2017-07-1716414274ND
2017-07-1716414238ND
2017-07-1716414202ND
2017-07-1716414130ND
2017-07-1716414166ND
2017-07-1716414310ND
2017-10-0916880757ND