Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Quarryville Borough

NOTE: Quarryville Borough purchases water from Pennsylvania American Coatesville which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Pennsylvania American Coatesville.

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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

NOTE: Quarryville Borough purchases water from Pennsylvania American Coatesville which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Pennsylvania American Coatesville.

Date Lab ID Result
2018-01-0938173701ND
2019-02-0643221201ND
2020-01-2121495926.00ND
2021-01-0723705349.00ND
2022-01-0625935030.00ND
2023-01-0328165652.00ND