Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

St Albans Water Department

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
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

Date Lab ID Result
2018-01-161801-01210-001ND
2018-01-161801-01210-002ND
2019-01-221901-01623-001ND
2019-01-221901-01623-002ND
2020-01-132001-00985-001ND
2020-01-132001-00985-002ND
2021-01-112101-00903-001ND
2021-01-112101-00903-002ND
2022-01-192201-01530-001ND
2022-01-192201-01530-002ND
2023-02-212302-04849-002ND
2023-02-212302-04849-001ND