trans-1,2-Dichloroethylene
Warrington Twp Water&sew Dept
NOTE: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by North Wales 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.
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 | 5 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 6 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 60 ppb
The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL): 100 ppb
The legal limit for trans-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: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by North Wales Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-12 | 20180932 | ND |
| 2018-03-12 | 20180940 | ND |
| 2018-03-12 | 20180939 | ND |
| 2018-03-12 | 20180938 | ND |
| 2018-03-12 | 20180937 | ND |
| 2018-03-12 | 20180936 | ND |
| 2018-03-12 | 20180935 | ND |
| 2018-03-12 | 20180934 | ND |
| 2018-03-12 | 20180933 | ND |
| 2018-03-13 | 20180956 | ND |
| 2018-06-05 | 20182148 | ND |
| 2018-09-04 | 20183373 | ND |
| 2018-12-18 | 20184775 | ND |
| 2019-03-05 | 20190857 | ND |
| 2019-03-12 | 20190960 | ND |
| 2019-03-12 | 20190956 | ND |
| 2019-03-12 | 20190964 | ND |
| 2019-03-12 | 20190957 | ND |
| 2019-03-12 | 20190963 | ND |
| 2019-03-12 | 20190962 | ND |
| 2019-03-12 | 20190958 | ND |
| 2019-03-12 | 20190961 | ND |
| 2019-03-12 | 20190959 | ND |
| 2019-09-03 | 20193443 | ND |
| 2019-12-03 | 20194748 | ND |
| 2020-03-03 | 21849467.00 | ND |
| 2020-03-03 | 21849446.00 | ND |
| 2020-03-03 | 21849425.00 | ND |
| 2020-03-03 | 21849488.00 | ND |
| 2020-03-03 | 21849509.00 | ND |
| 2020-03-03 | 21849530.00 | ND |
| 2020-03-03 | 21849404.00 | ND |
| 2020-03-03 | 21849551.00 | ND |
| 2020-06-02 | 22418580.00 | ND |
| 2020-06-02 | 22418601.00 | ND |
| 2020-09-01 | 23001535.00 | ND |
| 2020-12-01 | 23539409.00 | ND |
| 2021-03-01 | 24062310.00 | ND |
| 2021-03-01 | 24062394.00 | ND |
| 2021-03-01 | 24062268.00 | ND |
| 2021-03-01 | 24062373.00 | ND |
| 2021-03-01 | 24062352.00 | ND |
| 2021-03-01 | 24062331.00 | ND |
| 2021-03-01 | 24062289.00 | ND |
| 2021-03-02 | 24062415.00 | ND |
| 2021-06-01 | 24640228.00 | ND |
| 2021-09-09 | 25222347.00 | ND |
| 2021-12-14 | 25766377.00 | ND |
| 2022-03-01 | 26289331.00 | ND |
| 2022-03-09 | 26289247.00 | ND |
| 2022-03-09 | 26289310.00 | ND |
| 2022-03-09 | 26289289.00 | ND |
| 2022-03-09 | 26289184.00 | ND |
| 2022-03-09 | 26289226.00 | ND |
| 2022-03-09 | 26289205.00 | ND |
| 2022-03-09 | 26289268.00 | ND |
| 2022-06-07 | 26844660.00 | ND |
| 2022-09-20 | 27443452.00 | ND |
| 2022-12-06 | 28000358.00 | ND |
| 2023-03-07 | 28523010.00 | ND |
| 2023-03-08 | 28522947.00 | ND |
| 2023-03-08 | 28522905.00 | ND |
| 2023-03-08 | 28522989.00 | ND |
| 2023-03-08 | 28522968.00 | ND |
| 2023-03-08 | 28522926.00 | ND |
| 2023-06-05 | 29110406.00 | ND |
| 2023-06-19 | 29110355.00 | ND |
| 2023-09-12 | 29701906.00 | ND |
| 2023-11-17 | 30073308.00 | ND |