Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

South Middleton Twp Water Authority

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

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND90ND
2022ND90ND
2023ND60ND

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
2018-05-158052993-01ND
2018-05-158052993-02ND
2018-05-158052993-03ND
2019-05-149052836-02ND
2019-05-149052836-03ND
2019-05-149052836-01ND
2020-05-1422355422.00ND
2020-05-1422355401.00ND
2020-05-1422355380.00ND
2021-02-1724007055.00ND
2021-02-1724007007.00ND
2021-02-1724007031.00ND
2021-05-1824579634.00ND
2021-05-1824579683.00ND
2021-05-1824579659.00ND
2021-08-1725164851.00ND
2021-08-1725164900.00ND
2021-08-1725164876.00ND
2022-05-1726788401.00ND
2022-05-1726788450.00ND
2022-05-1726788426.00ND
2022-08-2327587391.00ND
2022-08-2327587392.00ND
2022-08-2327587390.00ND
2022-11-1627948228.00ND
2022-11-1627948252.00ND
2022-11-1627948203.00ND
2023-03-3028650585.00ND
2023-03-3028650634.00ND
2023-03-3028650610.00ND
2023-05-2529247745.00ND
2023-05-2529247744.00ND
2023-05-2529247743.00ND