Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Monson Water System

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.

 

9

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
2019ND40ND
2020ND20ND
2021ND10ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 60 ppb

The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for trans-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
2019-03-29CA5403212_001_001-201903290920ND
2019-06-20CA5403212_001_001-201906201220ND
2019-09-06CA5403212_001_001-201909061145ND
2019-12-17CA5403212_001_001-201912171420ND
2020-03-06CA5403212_001_001-202003061310ND
2020-06-16CA5403212_001_001-202006161330ND
2021-09-28CA5403212_001_001-202109281115ND
2022-09-26CA5403212_001_001-202209261355ND
2023-09-11CA5403212_001_001-202309111230ND