1,2,4-Trichlorobenzene

City of Lemoore

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
2013	N/A	0	N/A
2014	ND	1	ND
2015	ND	1	ND
2016	ND	8	ND
2017	N/A	0	N/A
2018	ND	2	ND
2019	ND	13	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
2014-07-23	5810-018-0935	ND
2015-05-21	5810-020-1015	ND
2016-04-18	5810-008-1145	ND
2016-04-18	5810-009-1355	ND
2016-04-18	5810-010-1000	ND
2016-04-18	5810-011-1020	ND
2016-05-02	5810-005-1045	ND
2016-05-03	5810-006-0945	ND
2016-08-23	5810-022-1100	ND
2016-08-23	5810-021-1115	ND
2018-02-06	5810-018-0740	ND
2018-05-24	5810-020-1002	ND
2019-05-14	5810-005-0935	ND
2019-05-14	5810-011-1045	ND
2019-05-14	5810-010-1015	ND
2019-05-14	5810-009-0955	ND
2019-10-19	5810-018-1105	ND
2019-10-24	5810-018-0940	ND
2019-11-12	5810-018-1000	ND
2019-11-14	5810-018-1020	ND
2019-11-20	5810-018-1245	ND
2019-12-07	5810-018-0820	ND
2019-12-13	5810-018-1300	ND
2019-12-20	5810-021-1000	ND
2019-12-20	5810-022-0930	ND