22'44'-Tetrachlorobiphenyl
City of Laredo
14
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-19 | AC43653 | ND |
| 2015-03-16 | AC84519 | ND |
| 2015-11-17 | AD13919 | ND |
| 2015-11-18 | AD14107 | ND |
| 2015-11-18 | AD14108 | ND |
| 2015-12-14 | AD16884 | ND |
| 2016-06-20 | AD41421 | ND |
| 2017-02-21 | AD71345 | ND |
| 2018-03-05 | AE16785 | ND |
| 2018-07-16 | AE33649 | ND |
| 2018-10-16 | AE43682 | ND |
| 2018-10-16 | AE43683 | ND |
| 2018-10-16 | AE43684 | ND |
| 2019-03-11 | AE57934 | ND |