Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Estates At Highland Ridge

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

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND60ND
2021ND60ND
2022ND60ND
2023ND80ND

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 Result
2018-05-22ND
2018-05-22ND
2018-05-22ND
2018-05-22ND
2018-05-22ND
2018-10-10ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-05-21ND
2019-12-23ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2020-12-14ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-12-28ND
2022-06-21ND
2022-06-21ND
2022-06-21ND
2022-06-21ND
2022-06-21ND
2022-12-21ND
2023-06-26ND
2023-06-26ND
2023-06-26ND
2023-06-26ND
2023-06-26ND
2023-10-23ND
2023-12-12ND
2023-12-13ND