Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

South Ellis County Water Supply

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
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
2018-01-24Q1802749003ND
2018-01-24Q1802749005ND
2019-08-22Q1958604003ND
2019-08-22Q1958604005ND
2020-06-23Q2025080001ND
2020-06-23Q2025080003ND
2021-11-17Q2132254001ND
2021-11-17Q2132254003ND
2022-12-01Q2235925002ND
2022-12-01Q2235925004ND
2023-05-18Q2318771001ND
2023-11-27Q2350395001ND