Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

City of West

NOTE: City of West purchases water from City of Waco which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by City of Waco.

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND30ND
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

NOTE: City of West purchases water from City of Waco which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by City of Waco.

Date Lab ID Result
2018-07-19AE33959ND
2018-07-19AE33981ND
2019-07-23AE75565ND
2019-07-23AE75567ND
2020-02-05AE97085ND
2020-08-04AF21834ND
2020-08-04AF21836ND
2021-07-21AF62957ND
2021-07-21AF62959ND
2022-07-06AG03334ND
2022-07-06AG03338ND
2023-08-02AG51088ND
2023-08-02AG51114ND