Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

City of The Dalles

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

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND10ND
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

Date Lab ID Result
2018-08-16V8H038102-VND
2018-08-16V8H038101-VND
2018-08-16V8H038103-VND
2019-08-14B9H225803-VND
2020-08-11VDH027501-VND
2021-08-18202108190360-VND
2021-08-18202108190352-VND
2021-08-18202108190359-VND
2021-08-18202108190351-VND
2022-09-07810-36663-2-VND
2022-09-07810-36663-4-VND
2022-09-07810-36663-3-VND
2022-09-07810-36663-1-VND
2023-08-02VGH0111-04-VND
2023-08-02VGH0111-03-VND
2023-08-02VGH0111-01-VND
2023-08-02VGH0111-02-VND