cis-1,2-Dichloroethylene
North Hunt Special Utility District
NOTE: North Hunt Special Utility District purchases water from City of Commerce which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by City of Commerce.
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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
NOTE: North Hunt Special Utility District purchases water from City of Commerce which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by City of Commerce.
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-14 | Q1806236001 | ND |
| 2018-06-04 | Q1822047005 | ND |
| 2019-02-21 | Q1907743003 | ND |
| 2019-02-21 | Q1907743004 | ND |
| 2020-05-07 | Q2018051005 | ND |
| 2020-08-04 | Q2030361001 | ND |
| 2021-01-27 | Q2102032003 | ND |
| 2021-01-27 | Q2102032005 | ND |
| 2022-02-10 | Q2204939002 | ND |
| 2022-10-26 | Q2232338003 | ND |
| 2023-02-15 | Q2306243003 | ND |
| 2023-02-15 | Q2306243005 | ND |