1,2,4-Trichlorobenzene

Milford, Village of

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	8	ND
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	ND	12	ND
2019	ND	8	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-03-11	LLF11891	ND
2014-03-11	LLF11892	ND
2014-03-11	LLF21962	ND
2014-03-11	LLF11890	ND
2014-06-10	LLF21960	ND
2014-09-09	LLF37362	ND
2014-09-09	LLF37363	ND
2014-09-09	LLF37364	ND
2018-03-06	LLH69107	ND
2018-03-06	LLH69106	ND
2018-03-06	LLH69108	ND
2018-06-05	LLH84045	ND
2018-06-05	LLH84046	ND
2018-06-05	LLH84047	ND
2018-09-04	LLI03029	ND
2018-09-04	LLI03028	ND
2018-09-04	LLI03030	ND
2018-12-04	LLI18414	ND
2018-12-04	LLI18412	ND
2018-12-04	LLI18413	ND
2019-03-05	LLI27938	ND
2019-03-05	LLI27936	ND
2019-03-05	LLI27937	ND
2019-06-04	LLI41520	ND
2019-06-04	LLI41521	ND
2019-09-03	LLI61104	ND
2019-09-03	LLI61105	ND
2019-09-03	LLI61106	ND