1,1-Dichloroethylene
Altoona Water Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
37
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 | 6 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-08-28 | 8H28046-01 | ND |
| 2018-08-28 | 8H28044-01 | ND |
| 2018-08-28 | 8H28051-01 | ND |
| 2018-08-28 | 8H28032-01 | ND |
| 2018-08-28 | 8H28031-01 | ND |
| 2018-08-28 | 8H28047-01 | ND |
| 2019-11-06 | 9K07058-01 | ND |
| 2019-11-06 | 9K07058-03 | ND |
| 2019-11-07 | 9K07074-01 | ND |
| 2019-11-07 | 9K07072-01 | ND |
| 2019-12-05 | 9L05126-01 | ND |
| 2020-02-06 | 21729175.00 | ND |
| 2020-08-05 | 22869704.00 | ND |
| 2020-08-05 | 22869703.00 | ND |
| 2020-08-05 | 22869702.00 | ND |
| 2020-08-10 | 22869915.00 | ND |
| 2020-08-10 | 22869916.00 | ND |
| 2020-08-10 | 22869914.00 | ND |
| 2021-07-01 | 24897504.00 | ND |
| 2021-07-08 | 24897525.00 | ND |
| 2021-08-10 | 25092081.00 | ND |
| 2021-08-10 | 25092024.00 | ND |
| 2021-08-10 | 25092080.00 | ND |
| 2021-08-10 | 25092025.00 | ND |
| 2021-08-10 | 25092026.00 | ND |
| 2021-12-13 | 25828701.00 | ND |
| 2022-02-24 | 26177238.00 | ND |
| 2022-08-16 | 27309600.00 | ND |
| 2022-08-16 | 27309676.00 | ND |
| 2022-08-16 | 27308841.00 | ND |
| 2022-08-16 | 27309642.00 | ND |
| 2022-11-10 | 27885523.00 | ND |
| 2023-07-26 | 29371568.00 | ND |
| 2023-07-26 | 29371525.00 | ND |
| 2023-07-26 | 29371481.00 | ND |
| 2023-07-26 | 29371547.00 | ND |
| 2023-07-26 | 29371503.00 | ND |