Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

West San Martin Water Works Inc.

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND10ND
2021ND20ND
2022N/A00N/A
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
2018-11-06CA4300543_004_004-201811061210ND
2018-11-06CA4300543_010_010-201811061140ND
2020-07-29CA4300543_002_002-202007290740ND
2021-11-10CA4300543_004_004-202111100820ND
2021-11-10CA4300543_010_010-202111100810ND
2023-07-24CA4300543_002_002-202307240930ND