Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Mars Borough Water Works

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

 

12

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
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
2018-07-1718G1584-01ND
2019-08-1619H2178-01ND
2020-11-1323454842.00ND
2021-12-0625861422.00ND
2021-12-0625861443.00ND
2021-12-0725861464.00ND
2022-05-1326754580.00ND
2022-08-0427346599.00ND
2022-08-0427346620.00ND
2023-05-0929011437.00ND
2023-06-0529214290.00ND
2023-09-0629801307.00ND