Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Kirkmont Municipal Utility District

NOTE: Kirkmont Municipal Utility District purchases water from Sagemeadow Utility District which is required to test for hexachlorobenzene (hcb). Sample information shown below was taken by Sagemeadow Utility District.

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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: Kirkmont Municipal Utility District purchases water from Sagemeadow Utility District which is required to test for hexachlorobenzene (hcb). Sample information shown below was taken by Sagemeadow Utility District.

Date Lab ID Result
2018-04-12AE22365ND
2018-04-12AE22366ND
2019-02-19AE54913ND
2019-02-19AE54914ND
2020-02-19AE99100ND
2020-02-19AE99101ND
2021-03-04AF45505ND
2021-05-26AF55638ND
2022-03-24AF90596ND
2022-03-24AF90598ND
2023-02-22AG30058ND