Silver
City of Austin Water & Wastewater
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.
17
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 | 2 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-10 | AC46167 | ND |
| 2014-03-10 | AC46166 | ND |
| 2015-03-23 | AC85573 | ND |
| 2015-03-23 | AC85569 | ND |
| 2015-03-23 | AC85568 | ND |
| 2016-02-25 | AD25632 | ND |
| 2016-02-25 | AD25616 | ND |
| 2016-02-25 | AD25621 | ND |
| 2017-03-09 | AD74282 | ND |
| 2017-03-14 | AD74858 | ND |
| 2017-03-14 | AD74859 | ND |
| 2018-02-06 | AE12413 | ND |
| 2018-02-06 | AE12412 | ND |
| 2018-08-02 | AE35465 | ND |
| 2019-02-07 | AE53397 | ND |
| 2019-02-07 | AE53398 | ND |
| 2019-05-07 | AE65078 | ND |