Know Your Environment. Protect Your Health.

o-Dichlorobenzene

North Wales 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.

 

69

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND130ND
2019ND120ND
2020ND120ND
2021ND110ND
2022ND110ND
2023ND100ND

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
2018-03-1220180932ND
2018-03-1220180940ND
2018-03-1220180939ND
2018-03-1220180938ND
2018-03-1220180937ND
2018-03-1220180936ND
2018-03-1220180935ND
2018-03-1220180934ND
2018-03-1220180933ND
2018-03-1320180956ND
2018-06-0520182148ND
2018-09-0420183373ND
2018-12-1820184775ND
2019-03-0520190857ND
2019-03-1220190960ND
2019-03-1220190956ND
2019-03-1220190964ND
2019-03-1220190957ND
2019-03-1220190963ND
2019-03-1220190962ND
2019-03-1220190958ND
2019-03-1220190961ND
2019-03-1220190959ND
2019-09-0320193443ND
2019-12-0320194748ND
2020-03-0321849463.00ND
2020-03-0321849442.00ND
2020-03-0321849421.00ND
2020-03-0321849484.00ND
2020-03-0321849505.00ND
2020-03-0321849526.00ND
2020-03-0321849400.00ND
2020-03-0321849547.00ND
2020-06-0222418576.00ND
2020-06-0222418597.00ND
2020-09-0123001531.00ND
2020-12-0123539405.00ND
2021-03-0124062306.00ND
2021-03-0124062390.00ND
2021-03-0124062264.00ND
2021-03-0124062369.00ND
2021-03-0124062348.00ND
2021-03-0124062327.00ND
2021-03-0124062285.00ND
2021-03-0224062411.00ND
2021-06-0124640224.00ND
2021-09-0925222343.00ND
2021-12-1425766373.00ND
2022-03-0126289327.00ND
2022-03-0926289243.00ND
2022-03-0926289306.00ND
2022-03-0926289285.00ND
2022-03-0926289180.00ND
2022-03-0926289222.00ND
2022-03-0926289201.00ND
2022-03-0926289264.00ND
2022-06-0726844656.00ND
2022-09-2027443448.00ND
2022-12-0628000354.00ND
2023-03-0728523006.00ND
2023-03-0828522943.00ND
2023-03-0828522901.00ND
2023-03-0828522985.00ND
2023-03-0828522964.00ND
2023-03-0828522922.00ND
2023-06-0529110402.00ND
2023-06-1929110351.00ND
2023-09-1229701902.00ND
2023-11-1730073304.00ND