Know Your Environment. Protect Your Health.

o-Dichlorobenzene

South Middleton Twp Water Authority

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND90ND
2022ND90ND
2023ND60ND

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
2018-05-158052993-01ND
2018-05-158052993-02ND
2018-05-158052993-03ND
2019-05-149052836-02ND
2019-05-149052836-03ND
2019-05-149052836-01ND
2020-05-1422355419.00ND
2020-05-1422355398.00ND
2020-05-1422355377.00ND
2021-02-1724007052.00ND
2021-02-1724007004.00ND
2021-02-1724007028.00ND
2021-05-1824579631.00ND
2021-05-1824579680.00ND
2021-05-1824579656.00ND
2021-08-1725164848.00ND
2021-08-1725164897.00ND
2021-08-1725164873.00ND
2022-05-1726788398.00ND
2022-05-1726788447.00ND
2022-05-1726788423.00ND
2022-08-2327587382.00ND
2022-08-2327587383.00ND
2022-08-2327587381.00ND
2022-11-1627948225.00ND
2022-11-1627948249.00ND
2022-11-1627948200.00ND
2023-03-3028650582.00ND
2023-03-3028650631.00ND
2023-03-3028650607.00ND
2023-05-2529247736.00ND
2023-05-2529247735.00ND
2023-05-2529247734.00ND