Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Hynes Estates Mutual Water Company

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.

 

17

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
2019ND40ND
2020ND50ND
2021ND20ND
2022N/A00N/A
2023ND60ND

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
2019-07-10CA3000519_005_005-201907101130ND
2019-07-10CA3000519_005_005-201907101130ND
2019-11-07CA3000519_005_005-201911071310ND
2019-11-07CA3000519_005_005-201911071310ND
2020-02-04CA3000519_005_005-202002041035ND
2020-02-04CA3000519_005_005-202002041035ND
2020-05-05CA3000519_005_005-202005051010ND
2020-05-05CA3000519_005_005-202005051010ND
2020-11-17CA3000519_001_001-202011170900ND
2021-04-08CA3000519_005_005-202104081045ND
2021-08-03CA3000519_005_005-202108031005ND
2023-02-01CA3000519_001_001-202302011115ND
2023-04-24CA3000519_001_001-202304240955ND
2023-04-24CA3000519_005_005-202304241030ND
2023-09-14CA3000519_005_005-202309141330ND
2023-09-14CA3000519_005_005-202309141345ND
2023-11-08CA3000519_005_005-202311080935ND