cis-1,2-Dichloroethylene
Trumbauersville Municipal Waterworks
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.
17
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 |
|---|---|---|---|---|
| 2018 | 1.000 ppb | 1 | 1 | 1.000 ppb |
| 2019 | 0.678 ppb | 4 | 3 | ND - 1.10 ppb |
| 2020 | 0.460 ppb | 2 | 1 | ND - 0.920 ppb |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 0.786 ppb | 7 | 4 | ND - 1.50 ppb |
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
| Date | Lab ID | Result |
|---|---|---|
| 2018-12-23 | 3007776001 | 1.000 ppb |
| 2019-03-31 | 3025257001 | 1.10 ppb |
| 2019-06-30 | 3043361001 | ND |
| 2019-09-18 | 3059109001 | 0.750 ppb |
| 2019-12-31 | 3078526002 | 0.860 ppb |
| 2020-03-31 | 21832480.00 | 0.920 ppb |
| 2020-12-29 | 23522845.00 | ND |
| 2021-09-30 | 25204810.00 | ND |
| 2021-09-30 | 25204833.00 | ND |
| 2022-12-29 | 27984503.00 | ND |
| 2023-05-18 | 29093087.00 | 1.50 ppb |
| 2023-05-26 | 29093088.00 | 1.40 ppb |
| 2023-05-26 | 29093086.00 | ND |
| 2023-08-17 | 29481168.00 | ND |
| 2023-08-23 | 29481169.00 | 1.20 ppb |
| 2023-10-25 | 29872570.00 | ND |
| 2023-11-10 | 30057792.00 | 1.40 ppb |