Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

City of Rio Hondo

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND40ND
2021ND20ND
2022ND10ND
2023ND10ND

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
2018-08-15AE37208ND
2019-07-10AE73936ND
2020-03-06AF01729ND
2020-06-09AF14663ND
2020-08-19AF24306ND
2020-10-07AF29837ND
2021-01-27AF41377ND
2021-04-29AF51966ND
2022-02-03AF83317ND
2023-02-01AG27165ND