Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

City of Mountain Home

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

 

14

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
2021ND60ND
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
2019-06-11V1927644ND
2019-06-11V1927642ND
2021-09-09V2147367ND
2021-09-09V2147371ND
2021-09-21V2149803ND
2021-09-21V2149805ND
2021-09-22V2150231ND
2021-10-14V2155146ND
2022-02-24V2209169ND
2022-05-11V2222518ND
2022-05-11V2222516ND
2022-07-20V2234917ND
2022-10-19V2252291ND
2023-06-21V2312391-01ND