Know Your Environment. Protect Your Health.

o-Dichlorobenzene

Horseshoe Bend Water System

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
2020ND20ND
2021ND40ND
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
2018-09-24Q1838017002ND
2018-09-24Q1838017011ND
2019-09-17Q1965845001ND
2019-09-17Q1965845003ND
2020-06-22Q2024986001ND
2020-06-22Q2024986003ND
2021-03-31Q2108169005ND
2021-03-31Q2108169007ND
2021-08-11Q2121433003ND
2021-12-27Q2136238001ND
2022-11-30Q2235894004ND
2022-11-30Q2235894006ND
2023-06-08Q2321714001ND
2023-06-08Q2321714009ND
2023-07-31Q2330829001ND