Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Twin Lakes Water Works Corporation

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

 

16

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
2020ND50ND
2021ND30ND
2022ND30ND
2023ND50ND

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
2020-05-12CF93587-POCSND
2020-05-12CF93588-POCSND
2020-06-02AW10200-POCSND
2020-06-02AW10202-POCSND
2020-10-14AW19900-POCSND
2021-06-09AX11166-POCSND
2021-06-09AX11168-POCSND
2021-10-06AX20390-POCSND
2022-06-07AY09590-POCSND
2022-06-07AY09592-POCSND
2022-10-04AY17875-POCSND
2023-05-10AZ08444-POCS-1ND
2023-05-10AZ08442-POCSND
2023-11-19CP51319-POCSND
2023-11-19CP51318-POCSND
2023-12-13AZ22568-POCSND