o-Dichlorobenzene

USMC - 29 Palms

o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.

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
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	ND	7	ND
2016	ND	3	ND
2017	N/A	0	N/A
2018	ND	11	ND
2019	N/A	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 600 ppb

The EWG Health Guideline of 600 ppb for o-dichlorobenzene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 600 ppb

The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.

ppb = parts per billion

All test results

Date	Lab ID	Result
2015-01-26	4790-001-1100	ND
2015-01-26	4790-013-1140	ND
2015-01-26	4790-004-1330	ND
2015-01-26	4790-011-1450	ND
2015-01-26	4790-005-1200	ND
2015-01-26	4790-010-1245	ND
2015-03-02	4790-003-1100	ND
2016-05-11	4790-006-1050	ND
2016-05-11	4790-008-1110	ND
2016-05-11	4790-007-1130	ND
2018-02-27	4790-013-1120	ND
2018-02-27	4790-007-1320	ND
2018-02-27	4790-006-1255	ND
2018-02-27	4790-005-1200	ND
2018-02-27	4790-004-1230	ND
2018-02-27	4790-003-1100	ND
2018-02-27	4790-001-1140	ND
2018-02-28	4790-008-1145	ND
2018-02-28	4790-009-1200	ND
2018-02-28	4790-010-1100	ND
2018-02-28	4790-011-1130	ND