1,2,4-Trichlorobenzene

St. Martin Parish Industrial Park Ws

NOTE: St. Martin Parish Industrial Park Ws purchases water from Water & Sewer Commission 4 Of St. Mary which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Water & Sewer Commission 4 Of St. Mary.

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

MORE ABOUT THIS CONTAMINANT

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	2	ND
2015	ND	2	ND
2016	ND	4	ND
2017	ND	2	ND
2018	ND	2	ND
2019	ND	2	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
2014-01-13	AD88311	ND
2014-01-13	AD88311	ND
2015-02-24	35177310005	ND
2015-02-24	35177310005	ND
2016-01-11	35224753005	ND
2016-01-11	35224753005	ND
2017-01-10	35288198005	ND
2017-01-10	35288198005	ND
2018-01-25	35370415006	ND
2018-01-25	35370415006	ND
2019-01-15	35442671001	ND
2019-01-15	35442671001	ND