Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Barton Dade Cedar & Jasper Counties Consolidated Public Water Supply District 1

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND130ND
2020ND40ND
2021ND20ND
2022ND90ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2019-05-20AD47670ND
2019-05-20AD47671ND
2019-05-20AD47672ND
2019-05-20AD47673ND
2019-05-20AD47674ND
2019-05-20AD47675ND
2019-05-20AD47676ND
2019-05-20AD47677ND
2019-05-20AD47669ND
2019-07-15AD53004ND
2019-07-15AD53005ND
2019-10-21AD57423ND
2019-10-21AD57424ND
2020-01-20AD60735ND
2020-01-20AD60734ND
2020-05-262009164ND
2020-05-262009163ND
2021-04-132104041ND
2021-04-132104042ND
2022-04-202204750ND
2022-04-202204751ND
2022-05-172211805ND
2022-05-172211804ND
2022-05-172211806ND
2022-05-172211807ND
2022-05-172211808ND
2022-05-172211809ND
2022-05-172211810ND
2023-04-172303745ND
2023-04-172303746ND