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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Peter Pitchess Honor Rancho Detention Center

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

MORE ABOUT THIS CONTAMINANT

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND70ND
2016ND30ND
2017ND40ND
2018ND30ND
2019ND30ND

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
2014-03-045442-016-1115ND
2014-03-045442-006-1058ND
2014-03-045442-003-1046ND
2015-03-045442-003-0934ND
2015-03-045442-016-0957ND
2015-03-045442-006-0942ND
2015-03-255442-003-1050ND
2015-03-255442-006-1105ND
2015-04-155442-006-1205ND
2015-04-155442-003-1155ND
2016-03-305442-006-0903ND
2016-03-305442-016-0937ND
2016-03-305442-003-0857ND
2017-07-139588-006-1100ND
2017-07-139588-016-1110ND
2017-07-139588-003-1049ND
2017-09-189590-016-0945ND
2018-01-169590-006-0915ND
2018-01-169590-003-0900ND
2018-01-169590-016-0930ND
2019-01-089590-003-0830ND
2019-01-089590-006-0845ND
2019-01-089590-016-0900ND