Know Your Environment. Protect Your Health.

Hexachlorobenzene (HCB)

Ardmore Water System

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.

 

13

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
2019ND60ND
2020N/A00N/A
2021N/A00N/A
2022ND70ND
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
2019-01-2419010621-001BND
2019-01-2419010621-002BND
2019-07-3020114806001_ISOCND
2019-07-3020114806002_ISOCND
2019-09-1020120791001_ISOCND
2019-10-2920128009001_ISOCND
2022-02-2835699992001_ISOCND
2022-02-2835699992002_ISOCND
2022-05-2335719548001_ISOCND
2022-05-2335719549001_ISOCND
2022-05-2335719550001_ISOCND
2022-11-2835762267001A_ISOCND
2022-11-2835762267001_ISOCND