Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

City of Taneytown

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

 

38

Samples

1

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.662 ppb134ND - 2.79 ppb
20190.606 ppb123ND - 3.60 ppb
20200.696 ppb52ND - 2.20 ppb
20214.87 ppb221.85 ppb - 7.89 ppb
2022N/A00N/A
20230.487 ppb62ND - 1.95 ppb

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
2018-03-0523002110012.60 ppb
2018-03-13E18003311004ND
2018-06-20E18004567001ND
2018-06-262322947001ND
2018-07-1023254490012.20 ppb
2018-07-102325449002ND
2018-08-16E19000551001ND
2018-08-16E19000551004ND
2018-08-16E190005510062.79 ppb
2018-08-16E190005510081.02 ppb
2018-08-202333891001ND
2018-10-24E19001379001ND
2018-11-062349403001ND
2019-03-193022708001ND
2019-06-033037434001ND
2019-06-13E19004289004ND
2019-07-1530457140013.60 ppb
2019-07-153045712001ND
2019-07-25E20000354012ND
2019-07-25E200003540080.930 ppb
2019-07-25E200003540062.74 ppb
2019-07-25E20000354004ND
2019-07-25E20000354001ND
2019-07-25E20000354010ND
2019-11-053068008001ND
2020-02-183087316001ND
2020-03-03E20002984006ND
2020-09-16E21000751006ND
2020-09-16E210007510041.28 ppb
2020-09-16E210007510012.20 ppb
2021-03-15E210024830011.85 ppb
2021-03-15E210024830047.89 ppb
2023-03-21E23002236010.970 ppb
2023-03-21E23002237011.95 ppb
2023-05-23E2300281402ND
2023-05-23E2300281404ND
2023-05-23E2300281406ND
2023-05-23E2300281408ND