Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

City of Richland Hills

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

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

 

32

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

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

Date Lab ID Result
2018-01-24Q1802705003ND
2018-07-25Q1829430002ND
2018-07-25Q1829430003ND
2018-09-12Q1836536002ND
2018-09-12Q1836536004ND
2019-01-23Q1903345002ND
2019-04-24Q1916570019ND
2019-07-24Q1947967001ND
2019-07-24Q1947967004ND
2019-07-24Q1947967006ND
2019-07-24Q1947967022ND
2019-10-23Q1973436017ND
2020-01-22Q2002459025ND
2020-01-22Q2002459027ND
2020-07-22Q2028872012ND
2020-07-22Q2028872008ND
2020-07-22Q2028872010ND
2021-01-20Q2101402017ND
2021-01-20Q2101402019ND
2021-07-21Q2119124001ND
2021-07-21Q2119124003ND
2021-07-21Q2119124005ND
2022-01-19Q2201985008ND
2022-01-19Q2201985006ND
2022-07-20Q2220779003ND
2022-07-20Q2220779005ND
2022-07-20Q2220779007ND
2023-01-04Q2300420004ND
2023-03-21Q2310673021ND
2023-07-19Q2328721002ND
2023-09-21Q2341002001ND
2023-09-21Q2341002003ND