Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Pennsylvania American Water Company Yardley

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND70ND
2021ND70ND
2022ND80ND
2023ND70ND

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
2018-04-1139062701ND
2018-08-1440630801ND
2018-08-1440630201ND
2019-04-0443649801ND
2019-08-2245815901ND
2019-08-2245816001ND
2020-01-0621487042.00ND
2020-04-0922005635.00ND
2020-04-0922005614.00ND
2020-07-0922591152.00ND
2020-08-0622780445.00ND
2020-08-0622780466.00ND
2020-10-1223166535.00ND
2021-01-0623695989.00ND
2021-04-0624230999.00ND
2021-04-0624230978.00ND
2021-07-0724812023.00ND
2021-08-0225004507.00ND
2021-08-0225004528.00ND
2021-10-0425387740.00ND
2022-01-0325926368.00ND
2022-03-0926272433.00ND
2022-04-0626447232.00ND
2022-04-0626447253.00ND
2022-07-1227020353.00ND
2022-08-0427216468.00ND
2022-08-0427216415.00ND
2022-10-1327625721.00ND
2023-01-0328156603.00ND
2023-04-1728684428.00ND
2023-04-1728684409.00ND
2023-07-1229285451.00ND
2023-08-0929478519.00ND
2023-08-0929478498.00ND
2023-10-1129870746.00ND