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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

City of Caldwell

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

MORE ABOUT THIS CONTAMINANT

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND130ND
2017N/A00N/A
2018N/A00N/A
2019ND70ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-18V1422594ND
2014-09-29V1438512ND
2014-11-13V1445335ND
2015-03-10V1509143ND
2015-05-06V1517379ND
2015-09-24V1541055ND
2016-10-12V1647131ND
2016-10-12V1647132ND
2016-10-12V1647133ND
2016-10-12V1647134ND
2016-10-12V1647135ND
2016-10-13V1647137ND
2016-10-13V1647136ND
2016-10-13V1647138ND
2016-10-13V1647139ND
2016-10-13V1647140ND
2016-10-13V1647141ND
2016-10-13V1647142ND
2016-10-19V1647952ND
2019-08-06V1938597ND
2019-08-06V1938594ND
2019-08-19V1941179ND
2019-08-19V1941177ND
2019-08-19V1941174ND
2019-08-19V1941183ND
2019-08-19V1941181ND