Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Clark Public Utilities

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
2018ND110ND
2019ND40ND
2020N/A00N/A
2021ND30ND
2022ND70ND
2023ND50ND

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
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-28ND
2018-08-28ND
2018-09-18ND
2018-09-18ND
2018-09-18ND
2018-11-18ND
2019-02-24ND
2019-02-24ND
2019-07-22ND
2019-09-05ND
2021-06-304143007ND
2021-08-024169136ND
2021-08-024169145ND
2022-07-274328694ND
2022-07-284328695ND
2022-07-284328685ND
2022-07-284328702ND
2022-08-034328676ND
2022-08-034328680ND
2022-08-034328682ND
2023-05-234545879ND
2023-06-124473923ND
2023-06-124473920ND
2023-06-124473922ND
2023-06-124473924ND