1,1-Dichloroethylene
Horsham Water&sewer Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
95
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 | 8 | 0 | ND |
| 2019 | ND | 13 | 0 | ND |
| 2020 | ND | 23 | 0 | ND |
| 2021 | ND | 18 | 0 | ND |
| 2022 | ND | 18 | 0 | ND |
| 2023 | ND | 15 | 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 |
|---|---|---|
| 2018-01-30 | AF74813 | ND |
| 2018-01-30 | AF74814 | ND |
| 2018-02-13 | AF75932 | ND |
| 2018-03-23 | AF79016 | ND |
| 2018-06-22 | AF86999 | ND |
| 2018-08-30 | AF94269 | ND |
| 2018-10-03 | AF96985 | ND |
| 2018-12-27 | AG04620 | ND |
| 2019-02-11 | AG07773 | ND |
| 2019-02-11 | AG07771 | ND |
| 2019-02-11 | AG07775 | ND |
| 2019-02-11 | AG07772 | ND |
| 2019-02-27 | AG09179 | ND |
| 2019-04-11 | AG13046 | ND |
| 2019-04-11 | AG13047 | ND |
| 2019-05-09 | AG16016 | ND |
| 2019-05-09 | AG16019 | ND |
| 2019-05-23 | AG16891 | ND |
| 2019-08-21 | AG28299 | ND |
| 2019-09-18 | AG31925 | ND |
| 2019-09-18 | AG31924 | ND |
| 2020-01-16 | 21502660.00 | ND |
| 2020-01-16 | 21502639.00 | ND |
| 2020-01-16 | 21502618.00 | ND |
| 2020-01-16 | 21502597.00 | ND |
| 2020-03-12 | 21846183.00 | ND |
| 2020-03-12 | 21846162.00 | ND |
| 2020-03-12 | 21846141.00 | ND |
| 2020-03-12 | 21846120.00 | ND |
| 2020-03-12 | 21846099.00 | ND |
| 2020-04-08 | 22021661.00 | ND |
| 2020-04-08 | 22021619.00 | ND |
| 2020-04-08 | 22021598.00 | ND |
| 2020-04-08 | 22021640.00 | ND |
| 2020-05-20 | 22214503.00 | ND |
| 2020-05-20 | 22214482.00 | ND |
| 2020-07-22 | 22607037.00 | ND |
| 2020-07-22 | 22607016.00 | ND |
| 2020-07-22 | 22607058.00 | ND |
| 2020-07-22 | 22606995.00 | ND |
| 2020-10-21 | 23181844.00 | ND |
| 2020-10-21 | 23181823.00 | ND |
| 2020-10-21 | 23181781.00 | ND |
| 2020-10-21 | 23181802.00 | ND |
| 2021-01-06 | 23888201.00 | ND |
| 2021-01-06 | 23888180.00 | ND |
| 2021-01-06 | 23888138.00 | ND |
| 2021-01-06 | 23888159.00 | ND |
| 2021-05-13 | 24438526.00 | ND |
| 2021-05-13 | 24438505.00 | ND |
| 2021-05-13 | 24438484.00 | ND |
| 2021-05-13 | 24438463.00 | ND |
| 2021-07-08 | 24828066.00 | ND |
| 2021-07-21 | 24828171.00 | ND |
| 2021-07-21 | 24828234.00 | ND |
| 2021-07-21 | 24828213.00 | ND |
| 2021-07-21 | 24828192.00 | ND |
| 2021-07-29 | 25022384.00 | ND |
| 2021-09-29 | 25220229.00 | ND |
| 2021-10-07 | 25403889.00 | ND |
| 2021-10-13 | 25403904.00 | ND |
| 2021-10-27 | 25403934.00 | ND |
| 2022-01-05 | 26117089.00 | ND |
| 2022-01-12 | 26117047.00 | ND |
| 2022-01-12 | 26117068.00 | ND |
| 2022-02-10 | 26117146.00 | ND |
| 2022-02-17 | 26117026.00 | ND |
| 2022-02-24 | 26117123.00 | ND |
| 2022-04-06 | 26463503.00 | ND |
| 2022-04-20 | 26463545.00 | ND |
| 2022-04-20 | 26463566.00 | ND |
| 2022-04-20 | 26463524.00 | ND |
| 2022-07-07 | 27037099.00 | ND |
| 2022-07-13 | 27037078.00 | ND |
| 2022-07-13 | 27037057.00 | ND |
| 2022-07-14 | 27037036.00 | ND |
| 2022-11-02 | 27822990.00 | ND |
| 2022-11-09 | 27822927.00 | ND |
| 2022-11-10 | 27822948.00 | ND |
| 2022-11-10 | 27822969.00 | ND |
| 2023-01-18 | 28172701.00 | ND |
| 2023-01-19 | 28172680.00 | ND |
| 2023-01-26 | 28172722.00 | ND |
| 2023-01-26 | 28172743.00 | ND |
| 2023-04-12 | 28702132.00 | ND |
| 2023-04-26 | 28702174.00 | ND |
| 2023-04-26 | 28702195.00 | ND |
| 2023-04-26 | 28702111.00 | ND |
| 2023-04-26 | 28702153.00 | ND |
| 2023-07-27 | 29301887.00 | ND |
| 2023-07-27 | 29301866.00 | ND |
| 2023-07-27 | 29301908.00 | ND |
| 2023-10-19 | 29886666.00 | ND |
| 2023-10-19 | 29886645.00 | ND |
| 2023-10-19 | 29886624.00 | ND |