Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Mesa Grande Water Supply Corporation

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
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022N/A00N/A
2023ND20ND

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
2018-10-01Q1838902008ND
2018-10-01Q1838902010ND
2019-09-23Q1967401003ND
2019-09-23Q1967401005ND
2020-08-03Q2030173001ND
2020-08-03Q2030173003ND
2021-06-03Q2114421006ND
2021-06-03Q2114421010ND
2023-11-21Q2350122001ND
2023-11-21Q2350122003ND