Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Muscoda Waterworks

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND20ND
2021ND30ND
2022ND40ND
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
2020-04-1320D0406-01ND
2020-04-1320D0406-02ND
2021-06-1621F0629-01ND
2021-09-1321I0399-01ND
2021-12-0721L0290-01ND
2022-02-2222B0710-03ND
2022-04-1322D0400-01ND
2022-09-1322I0409-01ND
2022-10-1222J0384-01ND
2023-06-1223F0340-01ND
2023-06-1223F0340-02ND