Silver
City of Waco
Silver occurs naturally in surface and groundwater and can be added to water as a biocide that inhibits growth of bacteria and algae. Increasingly, the use of antimicrobial nano-sized silver particles in consumer products contributes to silver in water sources used for drinking water.
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 |
|---|---|---|---|---|
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-12 | AC42580 | ND |
| 2014-02-12 | AC42579 | ND |
| 2014-02-12 | AC42581 | ND |
| 2015-02-05 | AC79412 | ND |
| 2015-04-15 | AC88288 | ND |
| 2016-01-13 | AD17810 | ND |
| 2016-01-13 | AD17811 | ND |
| 2016-07-11 | AD43489 | ND |
| 2017-01-12 | AD64648 | ND |
| 2017-01-12 | AD64649 | ND |
| 2017-04-13 | AD79600 | ND |
| 2018-01-09 | AE08268 | ND |
| 2018-01-09 | AE08267 | ND |
| 2019-01-23 | AE50861 | ND |
| 2019-01-23 | AE50862 | ND |