p-Dichlorobenzene

Oyster Point S/d

NOTE: Oyster Point S/d purchases water from Cape Fear Public Utility Authority - New Hanover County which is required to test for p-dichlorobenzene. Sample information shown below was taken by Cape Fear Public Utility Authority - New Hanover County.

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.

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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	3	ND
2015	ND	2	ND
2016	ND	1	ND
2017	ND	3	ND
2018	ND	2	ND
2019	ND	3	ND

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
2014-04-10	201404120117	ND
2014-04-11	201404150331	ND
2014-06-04	201406050575	ND
2015-03-12		ND
2015-06-04		ND
2016-06-08	3467619	ND
2017-04-10	3671236	ND
2017-04-10	3671296	ND
2017-06-06	3708199	ND
2018-03-15	3891667	ND
2018-06-05	3953498	ND
2019-06-04	4314170	ND
2019-09-12	4419227	ND
2019-10-01	4443607	ND