Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Gurdon Waterworks

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND60ND
2020ND30ND
2021ND20ND
2022ND30ND
2023ND30ND

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
2018-01-2218025000709ND
2019-01-2319024002009ND
2019-01-2319024002101ND
2019-04-3019122001708ND
2019-08-0619220001809ND
2019-09-0319248000101ND
2019-11-1819324000209ND
2020-02-0420037002101ND
2020-02-0420037002201ND
2020-02-0420037002001ND
2021-02-0921041002401ND
2021-02-0921041002108ND
2022-01-1022013000101ND
2022-01-1122013002609ND
2022-10-03O202442-VOC-1ND
2023-02-13O206441-VOC-1ND
2023-02-13O206443-VOC-1ND
2023-02-13O206442-VOC-1ND