Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

City of Marfa

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-07-16Q1828343002ND
2019-02-19Q1907586002ND
2020-02-04Q2004910008ND
2021-06-21Q2116148003ND
2022-09-19Q2228088001ND
2023-07-25Q2329853008ND