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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

South Gate Water Department

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

MORE ABOUT THIS CONTAMINANT

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0967 ppb183ND - 0.640 ppb
20150.0763 ppb81ND - 0.610 ppb
20160.252 ppb94ND - 0.660 ppb
20170.184 ppb93ND - 0.650 ppb
20180.0700 ppb91ND - 0.630 ppb
20190.298 ppb94ND - 0.810 ppb

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
2014-01-169588-008-1120ND
2014-01-169588-016-1040ND
2014-01-169588-007-1110ND
2014-01-169588-014-1330ND
2014-01-169588-009-1215ND
2014-04-179588-008-1145ND
2014-04-179588-014-1325ND
2014-04-179588-007-1133ND
2014-04-179588-009-11200.510 ppb
2014-07-249588-009-11300.590 ppb
2014-07-249588-007-1150ND
2014-07-249588-008-1212ND
2014-07-249588-014-1008ND
2014-07-249588-024-1253ND
2014-10-099588-009-11360.640 ppb
2014-10-099588-008-1152ND
2014-10-099588-014-1317ND
2014-10-099588-007-1201ND
2015-01-089588-014-1206ND
2015-01-089588-016-0948ND
2015-01-089588-009-10300.610 ppb
2015-01-089588-008-1055ND
2015-01-089588-007-1048ND
2015-04-099588-007-1124ND
2015-04-099588-008-1143ND
2015-07-099588-024-1015ND
2016-01-149588-009-11000.660 ppb
2016-01-149588-016-1008ND
2016-01-149588-014-1217ND
2016-04-149588-007-1121ND
2016-04-149588-009-11010.590 ppb
2016-06-099588-008-0945ND
2016-07-149588-009-09220.510 ppb
2016-07-149588-024-1058ND
2016-10-139588-009-09570.510 ppb
2017-01-129588-014-1122ND
2017-01-129588-009-10500.510 ppb
2017-01-129588-016-1020ND
2017-04-129588-009-11040.650 ppb
2017-05-109588-007-1024ND
2017-05-109588-008-1029ND
2017-07-129588-024-0936ND
2017-07-129588-009-10400.500 ppb
2017-10-119588-009-1101ND
2018-01-109588-016-1039ND
2018-01-109588-014-1109ND
2018-03-299588-009-0857ND
2018-04-259588-008-1020ND
2018-04-259588-007-1004ND
2018-04-259588-009-0940ND
2018-07-239588-024-0912ND
2018-07-239588-009-1045ND
2018-10-179588-009-10050.630 ppb
2019-01-169588-016-1024ND
2019-01-169588-014-0846ND
2019-01-169588-009-09200.810 ppb
2019-04-109588-007-1005ND
2019-04-109588-009-11450.710 ppb
2019-07-109588-009-10110.600 ppb
2019-08-149588-008-1110ND
2019-10-169588-009-09500.560 ppb
2019-11-209588-008-1045ND