Silver
City of Horseshoe Bay
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.
12
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-30 | AC40756 | ND |
| 2014-01-30 | AC40752 | ND |
| 2015-05-06 | AC90673 | ND |
| 2015-05-06 | AC90672 | ND |
| 2016-01-27 | AD20301 | ND |
| 2016-04-14 | AD33129 | ND |
| 2017-02-13 | AD70315 | ND |
| 2017-04-19 | AD80104 | ND |
| 2018-07-05 | AE32367 | ND |
| 2018-07-05 | AE32366 | ND |
| 2019-01-08 | AE49074 | ND |
| 2019-01-08 | AE49073 | ND |