Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Darbonne Ws North

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND100ND
2020ND10ND
2021N/A00N/A
2022ND40ND
2023N/A00N/A

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
2019-09-0935496832001ND
2019-09-0935496832002ND
2019-09-0935496832003ND
2019-09-0935496832004ND
2019-09-0935496832005ND
2019-09-0935496832001ND
2019-09-0935496832002ND
2019-09-0935496832003ND
2019-09-0935496832004ND
2019-09-0935496832005ND
2020-11-1835593639001ND
2022-08-3135744181001ND
2022-08-3135744181002ND
2022-08-3135744181003ND
2022-08-3135744181004ND