Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Pennsylvania American Water Company Yardley

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

 

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

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals 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
2020-01-0621487048.00ND
2020-04-0922005641.00ND
2020-04-0922005620.00ND
2020-07-0922591158.00ND
2020-08-0622780451.00ND
2020-08-0622780472.00ND
2020-10-1223166541.00ND
2021-01-0623695995.00ND
2021-04-0624231005.00ND
2021-04-0624230984.00ND
2021-07-0724812029.00ND
2021-08-0225004513.00ND
2021-08-0225004534.00ND
2021-10-0425387746.00ND
2022-01-0325926354.00ND
2022-03-0926272419.00ND
2022-04-0626447214.00ND
2022-04-0626447239.00ND
2022-07-1227020348.00ND
2022-08-0427216454.00ND
2022-08-0427216433.00ND
2022-10-1327625707.00ND
2023-01-0328156610.00ND
2023-04-1728684443.00ND
2023-04-1728684423.00ND
2023-07-1229285437.00ND
2023-08-0929478505.00ND
2023-08-0929478484.00ND
2023-10-1129870732.00ND