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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethane

Harlingen Water Works System

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

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND50ND
2014ND40ND
2015ND20ND
2016ND30ND
2017ND10ND
2018ND20ND
2019ND20ND

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
2013-04-021304099-007DND
2013-04-021304099-005DND
2013-07-09Q1303482001ND
2013-07-09Q1303482003ND
2013-10-01Q1308467001ND
2014-01-08Q1400371001ND
2014-04-24Q1413086001ND
2014-05-07AC53367ND
2014-07-22AC60487ND
2015-06-18AC96506ND
2015-09-22AD08062ND
2016-06-27AD41903ND
2016-09-28AD52086ND
2016-09-28AD52054ND
2017-08-02AD91849ND
2018-06-13AE29818ND
2018-07-26AE34710ND
2019-08-07AE77495ND
2019-08-07AE77507ND