cis-1,2-Dichloroethylene
Red Hill Water Authority
1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.
34
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 6 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 9 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 6 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-03-12 | 140010197 | ND |
2014-03-12 | 140010198 | ND |
2014-03-12 | 140010199 | ND |
2014-05-14 | 140020004 | ND |
2014-07-23 | 140032263 | ND |
2014-11-05 | 140050162 | ND |
2015-02-18 | 12402522 | ND |
2015-03-04 | 12516320 | ND |
2015-04-22 | 12634000 | ND |
2015-07-29 | 13013719 | ND |
2015-11-18 | 13515020 | ND |
2016-02-03 | 13871059 | ND |
2016-02-03 | 13871080 | ND |
2016-11-10 | 15227177 | ND |
2017-02-08 | 15656498 | ND |
2017-02-08 | 15656499 | ND |
2017-02-08 | 15656500 | ND |
2017-03-29 | 15796768 | ND |
2017-05-31 | 16095724 | ND |
2017-07-26 | 16414764 | ND |
2017-09-26 | 16727965 | ND |
2017-09-26 | 16727966 | ND |
2017-10-18 | 16881221 | ND |
2018-02-07 | 8001980-01 | ND |
2018-04-25 | 8008151-01 | ND |
2018-07-17 | 8017901-01 | ND |
2018-08-07 | 8021854-01 | ND |
2018-10-22 | 8028636-01 | ND |
2019-02-06 | 9002686-01 | ND |
2019-05-07 | 9009679-01 | ND |
2019-06-25 | 9022004-01 | ND |
2019-08-21 | 9025620-01 | ND |
2019-09-24 | 9021809-01 | ND |
2019-12-16 | 9033958-01 | ND |