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EWG's Tap Water Database — 2019 UPDATE

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Hexachlorobenzene (HCB)

Ilion

Hexachlorobenzene is a cancer-causing, neurotoxic and hormone-disrupting chemical used as a pesticide until 1984. It is still found in landfills and hazardous waste sites, and can be detected in people.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND40ND
2014ND40ND
2015ND60ND
2016ND30ND
2017ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.03 ppb

The EWG Health Guideline of 0.03 ppb for hexachlorobenzene 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 cancer.

EPA Maximum Contaminant
Level (MCL) 1 ppb

The legal limit for hexachlorobenzene, established in 1992, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to hexachlorobenzene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-091200380-SOCND
2012-04-021204587-SOC/RESAND
2012-07-091210462-SOC/RESAND
2012-12-031219429-SOC/RESAND
2013-01-071300259-001-SOCND
2013-04-011304251-SOCND
2013-07-081310187-SOCND
2013-10-151317017-001-SOCND
2014-01-131400485-SOCND
2014-04-141404907-SOCND
2014-07-1514071329-SOCND
2014-10-141416804-SOC/PARTND
2015-01-121500412-001-SOCND
2015-04-131504726-PHTHALATND
2015-05-111506281-01-SOCND
2015-05-111506282-001-SOCND
2015-07-131510251-PHTHALATND
2015-10-131516218-001-SOCND
2016-01-111600454-001-SOCND
2016-01-111600468-001-SOCND
2016-01-111600465-001-SOCND
2017-08-211713558-001-SOCND
2017-08-211713600-001-SOCND
2017-08-211713601-001-SOCND