Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Sunchase Meadows

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND40ND
2020ND30ND
2021ND10ND
2022ND10ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-10-02Q1839402003ND
2019-04-02Q1913217005ND
2019-04-02Q1913217021ND
2019-08-06Q1951306005ND
2019-10-29Q1974367006ND
2020-01-28Q2003194005ND
2020-03-30Q2012921005ND
2020-03-30Q2012921006ND
2021-08-19Q2122573001ND
2022-02-17Q2205934001ND
2023-10-24Q2345789001ND
2023-10-24Q2345789006ND