1,1-Dichloroethane

Ramona Municipal WD

NOTE: Ramona Municipal WD purchases water from San Diego County Water Authority which is required to test for 1,1-dichloroethane. Sample information shown below was taken by San Diego County Water Authority.

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	3	ND
2015	ND	1	ND
2016	ND	4	ND
2017	ND	4	ND
2018	ND	4	ND
2019	ND	3	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
2014-02-05	9590-003-1102	ND
2014-04-09	9590-003-1424	ND
2014-07-24	9590-003-1229	ND
2014-12-16	9590-003-1143	ND
2014-12-29	9590-001-1010	ND
2015-01-05	9590-003-1039	ND
2015-04-08	9590-003-1429	ND
2015-08-25	9590-003-1333	ND
2015-10-20	9590-003-1202	ND
2016-02-10	9590-003-1340	ND
2016-06-16	9590-003-1435	ND
2016-08-02	9590-003-1135	ND
2016-11-29	9590-003-1309	ND
2017-03-30	9590-003-1230	ND
2017-06-14	9590-003-0942	ND
2017-07-05	9590-003-1134	ND
2017-10-16	9590-003-1305	ND
2018-01-03	9590-003-1215	ND
2018-04-10	9590-003-1230	ND
2018-09-17	9590-003-1218	ND
2018-10-01	9590-003-1326	ND
2019-06-13	9590-003-1044	ND
2019-09-17	9590-003-1230	ND
2019-12-11	9590-003-0724	ND