1,1-Dichloroethylene
Mount Houston Road Municipal Utility District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 2 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2015-08-06 | AD02978 | ND |
2015-10-28 | AD12014 | ND |
2016-03-29 | AD30934 | ND |
2016-03-29 | AD30922 | ND |
2016-06-21 | AD41381 | ND |
2017-05-30 | AD85901 | ND |
2017-09-14 | AD96269 | ND |
2018-06-18 | AE30246 | ND |
2018-06-18 | AE30242 | ND |
2019-07-15 | AE74417 | ND |
2019-07-15 | AE74415 | ND |