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EWG's Tap Water Database — 2019 UPDATE

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Hexachlorobenzene (HCB)

Oyster Bay Water District

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013N/A00N/A
2014ND50ND
2015ND50ND
2016ND50ND
2017ND50ND

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
2012-12-191212988-001-SOCSND
2012-12-191212988-002-SOCSND
2012-12-191212988-004-SOCSND
2012-12-191212988-003-SOCSND
2012-12-211212B33-001-SOCSND
2014-06-041406268-001-SOCSND
2014-06-041406268-003-SOCSND
2014-06-041406268-002-SOCSND
2014-06-041406268-004-SOCSND
2014-06-041406268-005-SOCSND
2015-05-201505E61-001-SOCSND
2015-05-201505E61-004-SOCSND
2015-05-201505E61-005-SOCSND
2015-05-201505E61-002-SOCSND
2015-05-201505E61-003-SOCSND
2016-06-281606Q85-003-SOCSND
2016-06-281606Q85-002-SOCSND
2016-06-281606Q85-004-SOCSND
2016-06-281606Q85-001-SOCSND
2016-06-291606S10-001-SOCSND
2017-06-277022481002ND
2017-06-277022481004ND
2017-06-277022481005ND
2017-06-277022481003ND
2017-06-277022481001ND