p-Dichlorobenzene

USMC - 29 Palms

p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.

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 6 ppb

The EWG Health Guideline of 6 ppb for p-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 cancer.

EPA Maximum Contaminant
Level (MCL) 75 ppb

The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.

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