1,1-Dichloroethane

Orchard Dale Water District

NOTE: Orchard Dale Water District purchases water from La Habra Heights County Water District which is required to test for 1,1-dichloroethane. Sample information shown below was taken by La Habra Heights County Water District.

1,1-Dichloroethane is used in industrial chemical synthesis; in plastics, paint, varnish and finish removers; and as a pesticide. It can cause cancer.

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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	4	ND
2015	ND	4	ND
2016	ND	4	ND
2017	ND	4	ND
2018	ND	5	ND
2019	ND	4	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 3 ppb

The EWG Health Guideline of 3 ppb for 1,1-dichloroethane 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.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-08	9588-009-0929	ND
2014-04-11	9588-010-0930	ND
2014-07-22	9588-005-0950	ND
2015-03-04	9588-009-0928	ND
2015-04-10	9588-010-0920	ND
2015-07-28	9588-005-0947	ND
2015-09-16	9588-006-1010	ND
2016-03-21	9588-009-0940	ND
2016-07-13	9588-005-0907	ND
2016-07-13	9588-010-0840	ND
2016-07-13	9588-006-0857	ND
2017-01-17	9588-009-0925	ND
2017-07-19	9588-006-0934	ND
2017-07-19	9588-010-0900	ND
2017-07-19	9588-005-0915	ND
2018-01-11	9588-009-0847	ND
2018-07-20	9588-006-1014	ND
2018-07-20	9588-005-1000	ND
2018-08-13	9588-010-0850	ND
2018-10-19	9588-010-0945	ND
2019-02-21	9588-009-0842	ND
2019-07-22	9588-006-0905	ND
2019-07-22	9588-010-0844	ND
2019-07-22	9588-005-0919	ND