22'44'-Tetrachlorobiphenyl
City of Shavano Park
15
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 | 1 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-02 | AE16783 | ND |
| 2019-04-03 | AE61106 | ND |
| 2019-04-03 | AE61107 | ND |
| 2019-04-03 | AE61108 | ND |
| 2020-02-24 | AE99608 | ND |
| 2020-05-15 | AF11951 | ND |
| 2021-02-23 | AF44017 | ND |
| 2022-03-09 | AF88498 | ND |
| 2022-03-09 | AF88499 | ND |
| 2022-03-09 | AF88501 | ND |
| 2022-06-21 | AG01786 | ND |
| 2022-09-27 | AG15096 | ND |
| 2023-03-16 | AG33423 | ND |
| 2023-06-22 | AG45704 | ND |
| 2023-06-22 | AG45705 | ND |