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EWG's Tap Water Database — 2019 UPDATE

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Hexachlorocyclopentadiene

Bellefonte Borough 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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013N/A00N/A
2014ND20ND
2015ND10ND
2016ND40ND
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
2012-04-0512040671ND
2012-04-1912041363ND
2012-08-1612081884ND
2012-10-1812101416-01ND
2014-06-1114061493-01ND
2014-08-2114082551-01ND
2015-07-1613061462ND
2016-03-1614031427ND
2016-06-1514470322ND
2016-09-2214974647ND
2016-11-1715428411ND
2017-03-2215849496ND
2017-05-1616319946ND
2017-05-1616319920ND
2017-08-1716628605ND
2017-08-1716628634ND