1,2,4-Trichlorobenzene

Monett PWS

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	Detections	Range of results
2014	N/A	0	0	N/A
2015	N/A	0	0	N/A
2016	0.0711 ppb	9	1	ND - 0.640 ppb
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	ND	9	0	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
2016-08-19	AC83287	ND
2016-08-19	AC83291	ND
2016-08-19	AC83290	ND
2016-08-19	AC83295	0.640 ppb
2016-08-19	AC83293	ND
2016-08-19	AC83292	ND
2016-08-19	AC83288	ND
2016-08-19	AC83289	ND
2016-08-19	AC83286	ND
2019-08-14	AD54221	ND
2019-08-14	AD54218	ND
2019-08-14	AD54219	ND
2019-08-14	AD54217	ND
2019-08-14	AD54220	ND
2019-08-14	AD54215	ND
2019-08-14	AD54214	ND
2019-08-14	AD54212	ND
2019-08-14	AD54216	ND