Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

City of Shallowater

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
2019ND10ND
2020ND10ND
2021ND30ND
2022ND50ND
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
2018-07-11Q1827381001ND
2019-07-10Q1943529002ND
2020-07-29Q2029645004ND
2021-08-11Q2121480006ND
2021-10-20Q2129605004ND
2021-10-20Q2129605006ND
2022-03-15Q2208766004ND
2022-06-16Q2216858002ND
2022-06-16Q2216858004ND
2022-08-16Q2224095001ND
2022-10-25Q2232134001ND
2023-04-25Q2315528008ND
2023-04-25Q2315528010ND