Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Oakdale

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
2020N/A00N/A
2021ND20ND
2022ND50ND
2023ND10ND

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
2018-08-2918H2504-04ND
2018-11-2818K1049-01ND
2019-09-2419I1346-03ND
2019-09-2419I1346-05ND
2021-11-3021K1445-01ND
2021-11-3021K1445-02ND
2022-03-3022C1204-02ND
2022-05-1722E1283-01ND
2022-09-1422I0893-01ND
2022-09-1422I0893-02ND
2022-12-2922L1157-01ND
2023-01-3123A1112-01ND