Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Hillcrest Water District

NOTE: Hillcrest Water District purchases water from Leicester Water Supply District which is required to test for o-dichlorobenzene. Sample information shown below was taken by Leicester Water Supply District.

o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 600 ppb

The EWG Health Guideline of 600 ppb for o-dichlorobenzene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 600 ppb

The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.

ppb = parts per billion

All test results

NOTE: Hillcrest Water District purchases water from Leicester Water Supply District which is required to test for o-dichlorobenzene. Sample information shown below was taken by Leicester Water Supply District.

Date Result
2019-05-28ND
2019-05-28ND
2019-05-28ND
2019-05-28ND
2020-06-24ND
2020-06-24ND
2020-06-24ND
2020-06-24ND
2021-06-16ND
2021-06-16ND
2021-06-16ND
2021-06-16ND
2022-05-12ND
2022-05-12ND
2022-05-12ND
2022-05-12ND
2023-05-10ND
2023-05-10ND
2023-05-10ND
2023-05-10ND