Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Posey Township Water Corporation

NOTE: Posey Township Water Corporation purchases water from Patoka Lake Regional Water which is required to test for hexachlorobenzene (hcb). Sample information shown below was taken by Patoka Lake Regional Water.

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND40ND
2020ND40ND
2021ND10ND
2022ND50ND
2023ND50ND

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

NOTE: Posey Township Water Corporation purchases water from Patoka Lake Regional Water which is required to test for hexachlorobenzene (hcb). Sample information shown below was taken by Patoka Lake Regional Water.

Date Lab ID Result
2018-05-16416929RS28-1802ND
2018-08-16426574RS28-1803ND
2019-02-12443170RS525-1901ND
2019-05-13452059RS525-1902ND
2019-08-14462026RS525-1903ND
2019-11-11470688RS525-1904ND
2020-02-12478343RS-2001ND
2020-05-124626102ND
2020-08-124698080ND
2020-11-094771608ND
2021-02-104832601ND
2021-05-114898972ND
2021-08-104980921ND
2021-08-184990896ND
2021-11-101-810-7353-1ND
2022-02-081-810-14164-6ND
2022-05-101-810-24180-1ND
2022-08-091-810-33419-1_INND
2022-08-161-810-34359-1_INND
2022-11-081-810-43880-1_INND
2023-02-141-810-53600-1_INND
2023-05-091-810-62557-1_INND
2023-08-081-810-73188-1_INND
2023-08-091-810-73252-1_INND
2023-11-071-810-84232-1_INND