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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Nas Saufley Field

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0102 ppb602ND - 0.320 ppb
20150.0221 ppb624ND - 0.390 ppb
20160.00898 ppb492ND - 0.240 ppb
2017ND630ND
2018ND440ND
20190.00446 ppb462ND - 0.190 ppb

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 Result