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Hexachlorocyclopentadiene

South Hero Fire District 4

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
2010N/A00N/A
2011N/A00N/A
20120.0400 ppb41ND - 0.160 ppb
20130.105 ppb43ND - 0.170 ppb
20140.127 ppb32ND - 0.220 ppb
20150.0500 ppb51ND - 0.250 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 2 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 50 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)50.0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2012-03-1312S174ND
2012-06-1812S190ND
2012-09-1213S00093ND
2012-12-1013S001390.160 ppb
2013-02-1213S00167ND
2013-05-1413S002120.150 ppb
2013-08-1414S000450.170 ppb
2013-11-1214S001110.1000 ppb
2014-02-1114S00132ND
2014-08-1215S000470.160 ppb
2014-11-0915S001410.220 ppb
2015-02-0915S001650.250 ppb
2015-03-251503-05470-001ND
2015-05-1215S00202ND
2015-08-1816S00036ND
2015-11-1116S00087ND