Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Wattsville Water Authority

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND30ND
2021ND20ND
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
2018-01-081801-00078-3ND
2018-01-081801-00078-5ND
2019-01-141901-00204-003ND
2019-01-141901-00204-004ND
2020-03-092003-00158-003ND
2020-03-092003-00158-004ND
2020-03-092003-00158-007ND
2021-01-062101-00069-003ND
2021-01-062101-00069-005ND
2022-03-152203-00287-002ND
2022-03-152203-00287-003ND
2022-03-152203-00287-004ND
2023-02-152302-00340-004ND
2023-02-152302-00340-005ND
2023-02-152302-00340-006ND