Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Frognot Water Supply Corporation

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND40ND
2021ND20ND
2022ND20ND
2023ND30ND

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

Date Lab ID Result
2018-04-19Q1816227008ND
2018-06-20Q1824690001ND
2019-03-18Q1911123002ND
2019-08-12Q1954104001ND
2020-03-10Q2009278009ND
2020-03-10Q2009278011ND
2020-03-10Q2009278013ND
2020-05-12Q2018415002ND
2021-07-13Q2118248008ND
2021-07-13Q2118248010ND
2022-05-11Q2214187002ND
2022-05-11Q2214187005ND
2023-03-14Q2310003002ND
2023-03-14Q2310003004ND
2023-03-14Q2310003006ND