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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethane

City of Patterson

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

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND140ND
2014ND50ND
2015ND20ND
2016ND40ND
2017ND20ND
2018ND10ND
2019ND40ND

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
2013-04-24A3D0757-07AND
2013-04-24A3D0757-03AND
2013-04-24A3D0757-09AND
2013-04-24A3D0757-13AND
2013-04-24A3D0757-11AND
2013-04-24A3D0757-01AND
2013-04-24A3D0757-05AND
2013-10-23A3I1246-04AND
2013-10-23A3I1246-14AND
2013-10-23A3I1246-12AND
2013-10-23A3I1246-06AND
2013-10-23A3I1246-01AND
2013-10-23A3I1246-10AND
2013-10-23A3I1246-08AND
2014-03-115867-018-0928ND
2014-05-135867-012-0900ND
2014-06-105867-018-0930ND
2014-09-095867-018-1005ND
2014-12-095867-018-1146ND
2015-03-125867-018-1224ND
2015-10-135867-014-0847ND
2016-02-025867-016-0835ND
2016-08-165867-002-1011ND
2016-08-165867-009-0952ND
2016-08-165867-005-0909ND
2017-05-025867-012-0957ND
2017-06-065867-018-0950ND
2018-10-025867-014-1130ND
2019-02-055867-016-0945ND
2019-08-065867-009-0800ND
2019-08-065867-005-0830ND
2019-08-065867-002-0725ND