1,1-Dichloroethylene
Collegeville Trappe Joint Public Works Department
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
215
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 | ND | 28 | 0 | ND |
| 2019 | ND | 28 | 0 | ND |
| 2020 | ND | 40 | 0 | ND |
| 2021 | ND | 40 | 0 | ND |
| 2022 | ND | 40 | 0 | ND |
| 2023 | ND | 39 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-22 | 20180311 | ND |
| 2018-01-22 | 20180312 | ND |
| 2018-01-22 | 20180313 | ND |
| 2018-01-22 | 20180314 | ND |
| 2018-01-22 | 20180315 | ND |
| 2018-01-22 | 20180316 | ND |
| 2018-01-22 | 20180317 | ND |
| 2018-04-18 | 20181575 | ND |
| 2018-04-18 | 20181576 | ND |
| 2018-04-18 | 20181577 | ND |
| 2018-04-18 | 20181578 | ND |
| 2018-04-18 | 20181579 | ND |
| 2018-04-18 | 20181580 | ND |
| 2018-04-18 | 20181581 | ND |
| 2018-07-16 | 20182718 | ND |
| 2018-07-16 | 20182719 | ND |
| 2018-07-16 | 20182720 | ND |
| 2018-07-16 | 20182721 | ND |
| 2018-07-16 | 20182722 | ND |
| 2018-07-16 | 20182723 | ND |
| 2018-07-16 | 20182724 | ND |
| 2018-10-15 | 20183946 | ND |
| 2018-10-15 | 20183947 | ND |
| 2018-10-15 | 20183948 | ND |
| 2018-10-15 | 20183949 | ND |
| 2018-10-15 | 20183950 | ND |
| 2018-10-15 | 20183951 | ND |
| 2018-10-15 | 20183952 | ND |
| 2019-01-23 | 20190306 | ND |
| 2019-01-23 | 20190307 | ND |
| 2019-01-23 | 20190308 | ND |
| 2019-01-23 | 20190309 | ND |
| 2019-01-23 | 20190310 | ND |
| 2019-01-23 | 20190311 | ND |
| 2019-01-23 | 20190312 | ND |
| 2019-04-15 | 20191439 | ND |
| 2019-04-15 | 20191440 | ND |
| 2019-04-15 | 20191441 | ND |
| 2019-04-15 | 20191442 | ND |
| 2019-04-15 | 20191443 | ND |
| 2019-04-15 | 20191444 | ND |
| 2019-04-15 | 20191445 | ND |
| 2019-07-15 | 20192706 | ND |
| 2019-07-15 | 20192707 | ND |
| 2019-07-15 | 20192708 | ND |
| 2019-07-15 | 20192709 | ND |
| 2019-07-15 | 20192710 | ND |
| 2019-07-15 | 20192711 | ND |
| 2019-07-15 | 20192712 | ND |
| 2019-10-21 | 20194150 | ND |
| 2019-10-21 | 20194151 | ND |
| 2019-10-21 | 20194152 | ND |
| 2019-10-21 | 20194153 | ND |
| 2019-10-21 | 20194154 | ND |
| 2019-10-21 | 20194155 | ND |
| 2019-10-21 | 20194156 | ND |
| 2020-01-20 | 21500898.00 | ND |
| 2020-01-20 | 21500919.00 | ND |
| 2020-01-20 | 21500940.00 | ND |
| 2020-01-20 | 21500961.00 | ND |
| 2020-01-20 | 21500982.00 | ND |
| 2020-01-20 | 21501003.00 | ND |
| 2020-03-02 | 21845020.00 | ND |
| 2020-03-02 | 21845041.00 | ND |
| 2020-03-02 | 21845062.00 | ND |
| 2020-03-02 | 21845083.00 | ND |
| 2020-05-18 | 22213321.00 | ND |
| 2020-05-18 | 22213342.00 | ND |
| 2020-05-18 | 22213363.00 | ND |
| 2020-05-18 | 22213384.00 | ND |
| 2020-05-18 | 22213405.00 | ND |
| 2020-05-18 | 22213426.00 | ND |
| 2020-05-18 | 22213447.00 | ND |
| 2020-06-08 | 22414011.00 | ND |
| 2020-06-08 | 22414032.00 | ND |
| 2020-06-08 | 22414053.00 | ND |
| 2020-08-03 | 22605631.00 | ND |
| 2020-08-03 | 22605652.00 | ND |
| 2020-08-03 | 22605673.00 | ND |
| 2020-08-03 | 22605694.00 | ND |
| 2020-08-03 | 22605715.00 | ND |
| 2020-08-17 | 22797382.00 | ND |
| 2020-08-17 | 22797403.00 | ND |
| 2020-08-17 | 22797424.00 | ND |
| 2020-08-17 | 22797445.00 | ND |
| 2020-08-17 | 22797466.00 | ND |
| 2020-10-19 | 23180751.00 | ND |
| 2020-10-19 | 23180772.00 | ND |
| 2020-10-19 | 23180793.00 | ND |
| 2020-10-19 | 23180814.00 | ND |
| 2020-10-19 | 23180835.00 | ND |
| 2020-10-19 | 23180856.00 | ND |
| 2020-11-02 | 23360571.00 | ND |
| 2020-11-02 | 23360592.00 | ND |
| 2020-11-02 | 23360613.00 | ND |
| 2020-11-02 | 23360634.00 | ND |
| 2021-01-18 | 23711042.00 | ND |
| 2021-01-18 | 23711063.00 | ND |
| 2021-01-18 | 23711084.00 | ND |
| 2021-01-18 | 23711105.00 | ND |
| 2021-01-18 | 23711126.00 | ND |
| 2021-02-03 | 23887122.00 | ND |
| 2021-02-03 | 23887143.00 | ND |
| 2021-02-03 | 23887164.00 | ND |
| 2021-02-03 | 23887185.00 | ND |
| 2021-03-22 | 24058529.00 | ND |
| 2021-04-19 | 24246025.00 | ND |
| 2021-04-19 | 24246046.00 | ND |
| 2021-04-19 | 24246067.00 | ND |
| 2021-04-19 | 24246088.00 | ND |
| 2021-04-19 | 24246109.00 | ND |
| 2021-04-19 | 24246130.00 | ND |
| 2021-05-17 | 24436784.00 | ND |
| 2021-05-17 | 24436805.00 | ND |
| 2021-05-17 | 24436826.00 | ND |
| 2021-05-17 | 24436847.00 | ND |
| 2021-08-02 | 24827173.00 | ND |
| 2021-08-02 | 24827194.00 | ND |
| 2021-08-02 | 24827215.00 | ND |
| 2021-08-02 | 24827236.00 | ND |
| 2021-08-16 | 25021289.00 | ND |
| 2021-08-16 | 25021310.00 | ND |
| 2021-08-16 | 25021331.00 | ND |
| 2021-08-16 | 25021352.00 | ND |
| 2021-08-16 | 25021373.00 | ND |
| 2021-08-16 | 25021394.00 | ND |
| 2021-10-18 | 25402986.00 | ND |
| 2021-10-18 | 25403007.00 | ND |
| 2021-10-18 | 25403028.00 | ND |
| 2021-10-18 | 25403049.00 | ND |
| 2021-10-18 | 25403070.00 | ND |
| 2021-10-18 | 25403091.00 | ND |
| 2021-11-01 | 25586582.00 | ND |
| 2021-11-01 | 25586603.00 | ND |
| 2021-11-01 | 25586624.00 | ND |
| 2021-11-01 | 25586645.00 | ND |
| 2022-01-17 | 25941004.00 | ND |
| 2022-01-17 | 25941025.00 | ND |
| 2022-01-17 | 25941046.00 | ND |
| 2022-01-17 | 25941067.00 | ND |
| 2022-01-17 | 25941088.00 | ND |
| 2022-01-17 | 25941109.00 | ND |
| 2022-02-07 | 26116016.00 | ND |
| 2022-02-07 | 26116037.00 | ND |
| 2022-02-07 | 26116058.00 | ND |
| 2022-02-07 | 26116079.00 | ND |
| 2022-04-18 | 26462320.00 | ND |
| 2022-04-18 | 26462341.00 | ND |
| 2022-04-18 | 26462362.00 | ND |
| 2022-04-18 | 26462383.00 | ND |
| 2022-04-18 | 26462404.00 | ND |
| 2022-04-18 | 26462425.00 | ND |
| 2022-05-02 | 26646909.00 | ND |
| 2022-05-02 | 26646930.00 | ND |
| 2022-05-02 | 26646951.00 | ND |
| 2022-05-02 | 26646972.00 | ND |
| 2022-07-18 | 27035697.00 | ND |
| 2022-07-18 | 27035718.00 | ND |
| 2022-07-18 | 27035739.00 | ND |
| 2022-07-18 | 27035760.00 | ND |
| 2022-07-18 | 27035781.00 | ND |
| 2022-07-18 | 27035802.00 | ND |
| 2022-08-01 | 27232421.00 | ND |
| 2022-08-01 | 27232442.00 | ND |
| 2022-08-01 | 27232463.00 | ND |
| 2022-08-01 | 27232484.00 | ND |
| 2022-10-17 | 27639855.00 | ND |
| 2022-10-17 | 27639876.00 | ND |
| 2022-10-17 | 27639897.00 | ND |
| 2022-10-17 | 27639918.00 | ND |
| 2022-10-17 | 27639939.00 | ND |
| 2022-10-17 | 27639960.00 | ND |
| 2022-11-07 | 27821393.00 | ND |
| 2022-11-07 | 27821414.00 | ND |
| 2022-11-07 | 27821435.00 | ND |
| 2022-11-07 | 27821456.00 | ND |
| 2023-01-23 | 28171113.00 | ND |
| 2023-01-23 | 28171134.00 | ND |
| 2023-01-23 | 28171155.00 | ND |
| 2023-01-23 | 28171176.00 | ND |
| 2023-02-06 | 28348078.00 | ND |
| 2023-02-06 | 28348099.00 | ND |
| 2023-02-06 | 28348120.00 | ND |
| 2023-02-06 | 28348141.00 | ND |
| 2023-02-06 | 28348162.00 | ND |
| 2023-02-06 | 28348183.00 | ND |
| 2023-04-17 | 28700398.00 | ND |
| 2023-04-17 | 28700419.00 | ND |
| 2023-04-17 | 28700440.00 | ND |
| 2023-04-17 | 28700461.00 | ND |
| 2023-04-17 | 28700482.00 | ND |
| 2023-04-17 | 28700503.00 | ND |
| 2023-05-22 | 28899029.00 | ND |
| 2023-05-22 | 28899030.00 | ND |
| 2023-05-22 | 28899031.00 | ND |
| 2023-05-22 | 28899032.00 | ND |
| 2023-07-24 | 29300397.00 | ND |
| 2023-07-24 | 29300418.00 | ND |
| 2023-07-24 | 29300439.00 | ND |
| 2023-07-24 | 29300460.00 | ND |
| 2023-07-24 | 29300481.00 | ND |
| 2023-07-24 | 29300502.00 | ND |
| 2023-08-07 | 29495524.00 | ND |
| 2023-08-07 | 29495545.00 | ND |
| 2023-08-07 | 29495566.00 | ND |
| 2023-08-07 | 29495587.00 | ND |
| 2023-10-16 | 29885092.00 | ND |
| 2023-10-16 | 29885113.00 | ND |
| 2023-10-16 | 29885134.00 | ND |
| 2023-10-16 | 29885155.00 | ND |
| 2023-10-16 | 29885176.00 | ND |
| 2023-10-16 | 29885197.00 | ND |
| 2023-11-06 | 30069950.00 | ND |
| 2023-11-06 | 30069971.00 | ND |
| 2023-11-06 | 30069992.00 | ND |