Know Your Environment. Protect Your Health.

cis-1,2-Dichloroethylene

Huxley Waterworks Department

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20190.770 ppb110.770 ppb
2020N/A00N/A
20210.210 ppb31ND - 0.630 ppb
20220.780 ppb52ND - 2.18 ppb
20230.200 ppb41ND - 0.800 ppb

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
2019-07-181G91640-010.770 ppb
2021-06-161EF1702-010.630 ppb
2021-07-021EG0246-01ND
2021-11-121EK1376-01ND
2022-01-061FA0483-01ND
2022-05-181FE2155-01ND
2022-08-041FH0547-012.18 ppb
2022-09-201FI1867-01ND
2022-10-201FJ1990-011.72 ppb
2023-01-191GA1753-01ND
2023-04-061GD0681-010.800 ppb
2023-07-271GG2605-01ND
2023-10-261GJ2404-01ND