Know Your Environment. Protect Your Health.

Dinoseb

Quarryville Borough

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

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

 

4

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
2019N/A00N/A
2020ND10ND
2021N/A00N/A
2022N/A00N/A
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

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

Date Lab ID Result
2020-04-0722015064.00ND
2020-07-0822600277.00ND
2023-04-0428694660.00ND
2023-07-0629295012.00ND