1,1-Dichloroethane

Ruth Water District

NOTE: Ruth Water District purchases water from Ely Municipal Water Department which is required to test for 1,1-dichloroethane. Sample information shown below was taken by Ely Municipal Water Department.

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	8	ND
2015	ND	1	ND
2016	ND	4	ND
2017	N/A	0	N/A
2018	ND	1	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
2013-02-27	100397Q	ND
2013-10-23	101946P	ND
2013-10-23	101945P	ND
2014-02-18	1402384-002	ND
2014-02-18	1402384-001	ND
2014-03-12	102903R	ND
2014-03-12	102901R	ND
2014-03-12	102900R	ND
2014-04-15	1404372-002	ND
2014-04-15	1404372-001	ND
2014-12-16	1412517-001	ND
2015-03-11	1503401-003	ND
2016-09-08	6I13035-03	ND
2016-09-08	6I13035-02	ND
2016-09-08	6I13035-01	ND
2016-09-08	6I13035-04V	ND
2018-11-08	18110223-007	ND
2019-11-14	19110404-002	ND
2019-11-14	19110404-003	ND
2019-11-14	19110404-005	ND
2019-11-21	19110631-001	ND