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EWG's Tap Water Database — 2019 UPDATE

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cis-1,2-Dichloroethylene

Newhall CWD-Newhall

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
2013ND80ND
2014ND70ND
2015ND80ND
2016ND80ND
2017ND90ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-099590-006-1037ND
2012-02-099590-007-1017ND
2012-04-129590-007-1150ND
2012-04-129590-006-0830ND
2012-07-129590-006-1012ND
2012-07-129590-007-0950ND
2012-10-119590-006-1100ND
2012-10-119590-007-1109ND
2013-01-109590-007-0940ND
2013-01-109590-006-0925ND
2013-04-119590-007-0901ND
2013-04-119590-006-0841ND
2013-07-119590-007-0925ND
2013-07-119590-006-0912ND
2013-10-109590-007-1205ND
2013-10-109590-006-1140ND
2014-01-169590-007-1105ND
2014-04-109590-007-0936ND
2014-05-299590-006-0955ND
2014-07-179590-007-0850ND
2014-07-179590-006-0825ND
2014-10-139590-007-1037ND
2014-10-139590-006-1005ND
2015-01-159590-007-0925ND
2015-01-159590-006-1023ND
2015-04-239590-006-1100ND
2015-04-239590-007-1118ND
2015-07-169590-006-0910ND
2015-07-169590-007-0925ND
2015-10-159590-006-0920ND
2015-10-159590-007-0930ND
2016-01-079590-006-0855ND
2016-01-079590-007-0930ND
2016-04-149590-007-1055ND
2016-04-149590-006-1115ND
2016-07-219590-007-0815ND
2016-07-219590-006-0858ND
2016-10-069590-007-1115ND
2016-10-069590-006-1045ND
2017-01-129590-006-0855ND
2017-02-239590-007-1155ND
2017-04-139590-007-0911ND
2017-04-139590-007-0900ND
2017-04-139590-006-0940ND
2017-04-139590-006-0930ND
2017-07-139590-006-0840ND
2017-07-139590-007-1000ND
2017-10-199590-007-0945ND