Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Tahoe Keys Water Company

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
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND50ND
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
2019-07-16CA0910015_006_006-201907160940ND
2019-07-16CA0910015_002_002-201907160910ND
2021-01-12CA0910015_001_001-202101120830ND
2021-01-19CA0910015_003_003-202101190830ND
2022-02-16CA0910015_001_001-202202161100ND
2022-02-16CA0910015_002_002-202202161200ND
2022-02-16CA0910015_003_003-202202161000ND
2022-06-07CA0910015_002_002-202206070925ND
2022-06-07CA0910015_010_010-202206070925ND
2023-11-14CA0910015_002_002-202311140915ND
2023-11-14CA0910015_007_007-202311140915ND