1,1-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 1,1-dichloroethylene. Sample information shown below was taken by North Wales Water Authority.
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
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
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
NOTE: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for 1,1-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 | 21849466.00 | ND |
| 2020-03-03 | 21849445.00 | ND |
| 2020-03-03 | 21849424.00 | ND |
| 2020-03-03 | 21849487.00 | ND |
| 2020-03-03 | 21849508.00 | ND |
| 2020-03-03 | 21849529.00 | ND |
| 2020-03-03 | 21849403.00 | ND |
| 2020-03-03 | 21849550.00 | ND |
| 2020-06-02 | 22418579.00 | ND |
| 2020-06-02 | 22418600.00 | ND |
| 2020-09-01 | 23001534.00 | ND |
| 2020-12-01 | 23539408.00 | ND |
| 2021-03-01 | 24062309.00 | ND |
| 2021-03-01 | 24062393.00 | ND |
| 2021-03-01 | 24062267.00 | ND |
| 2021-03-01 | 24062372.00 | ND |
| 2021-03-01 | 24062351.00 | ND |
| 2021-03-01 | 24062330.00 | ND |
| 2021-03-01 | 24062288.00 | ND |
| 2021-03-02 | 24062414.00 | ND |
| 2021-06-01 | 24640227.00 | ND |
| 2021-09-09 | 25222346.00 | ND |
| 2021-12-14 | 25766376.00 | ND |
| 2022-03-01 | 26289330.00 | ND |
| 2022-03-09 | 26289246.00 | ND |
| 2022-03-09 | 26289309.00 | ND |
| 2022-03-09 | 26289288.00 | ND |
| 2022-03-09 | 26289183.00 | ND |
| 2022-03-09 | 26289225.00 | ND |
| 2022-03-09 | 26289204.00 | ND |
| 2022-03-09 | 26289267.00 | ND |
| 2022-06-07 | 26844659.00 | ND |
| 2022-09-20 | 27443451.00 | ND |
| 2022-12-06 | 28000357.00 | ND |
| 2023-03-07 | 28523009.00 | ND |
| 2023-03-08 | 28522946.00 | ND |
| 2023-03-08 | 28522904.00 | ND |
| 2023-03-08 | 28522988.00 | ND |
| 2023-03-08 | 28522967.00 | ND |
| 2023-03-08 | 28522925.00 | ND |
| 2023-06-05 | 29110405.00 | ND |
| 2023-06-19 | 29110354.00 | ND |
| 2023-09-12 | 29701905.00 | ND |
| 2023-11-17 | 30073307.00 | ND |