Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

North Texas Municipal Water District Wylie Water Treatment Plant

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-09-17Q1836833014ND
2018-09-17Q1836833016ND
2018-09-17Q1836833012ND
2019-01-15Q1902044002ND
2019-08-02Q1950721001ND
2019-08-02Q1950721003ND
2020-05-19Q2020083001ND
2020-09-10Q2036102001ND
2020-09-10Q2036102003ND
2021-01-28Q2102310004ND
2021-09-23Q2126118004ND
2021-09-23Q2126118006ND
2022-03-22Q2209138012ND
2022-09-15Q2227685002ND
2022-09-15Q2227685004ND
2023-02-22Q2307413004ND
2023-08-22Q2335430005ND
2023-08-22Q2335430007ND