Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Hexachlorobenzene (HCB)

North Kona

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.

MORE ABOUT THIS CONTAMINANT

 

77

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND180ND
2015ND20ND
2016ND180ND
2017ND120ND
2018ND200ND
2019ND70ND

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
2014-03-18C14-03-0131AND
2014-03-18C14-03-0132ND
2014-03-18C14-03-0133ND
2014-03-18C14-03-0134ND
2014-03-18C14-03-0135ND
2014-03-18C14-03-0136ND
2014-03-18C14-03-0137ND
2014-03-18C14-03-0138AND
2014-03-18C14-03-0130ND
2014-04-15C14-04-0208ND
2014-04-15C14-04-0212ND
2014-04-15C14-04-0211ND
2014-04-15C14-04-0207ND
2014-04-15C14-04-0206ND
2014-04-15C14-04-0205ND
2014-04-15C14-04-0204ND
2014-04-15C14-04-0203ND
2014-07-07C14-07-0098ND
2015-08-19201508150137ND
2015-11-18201508150170ND
2016-03-15ND
2016-03-15ND
2016-03-15ND
2016-03-21ND
2016-03-21ND
2016-03-21ND
2016-03-21ND
2016-03-21ND
2016-03-21ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-24ND
2016-05-25ND
2016-05-25ND
2017-03-14ND
2017-03-14ND
2017-03-14ND
2017-03-14ND
2017-03-14ND
2017-03-14ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2018-01-17C18-01-0066AND
2018-01-17C18-01-0065ND
2018-05-22201805170773ND
2018-05-22201805170778ND
2018-05-23201805170774ND
2018-05-23201805290225ND
2018-05-23201805290227ND
2018-05-23201805290216ND
2018-06-18C18-06-0122ND
2018-07-08201805230559ND
2018-09-24C18-09-0284ND
2018-09-24C18-09-0285ND
2018-10-15201810170192ND
2018-10-22201810240383ND
2018-10-22201810240336ND
2018-10-29201810310535ND
2018-10-29201810310409ND
2018-10-29201810310336ND
2018-10-29201810310350ND
2018-12-03C18-12-0014ND
2019-01-07201901090296ND
2019-01-07201901090308ND
2019-04-29201905010517ND
2019-07-15201907170652ND
2019-07-15201907170514ND
2019-09-09201909100461ND
2019-10-09C19-10-0029AND