Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Liberty City Water Supply Corporation

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND20ND
2021ND40ND
2022ND20ND
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
2018-06-14Q1823909001ND
2018-06-14Q1823909002ND
2018-06-14Q1823909014ND
2018-06-14Q1823909015ND
2019-03-28Q1912649002ND
2019-03-28Q1912649015ND
2020-06-15Q2023825003ND
2020-10-13Q2039989013ND
2021-06-24Q2116619001ND
2021-11-19Q2132571001ND
2021-11-19Q2132571002ND
2021-11-19Q2132571003ND
2022-03-28Q2209608001ND
2022-10-24Q2231971007ND
2023-02-16Q2306532005ND
2023-06-14Q2322655008ND