Silver
City of Rosenberg
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 | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-21 | AC39491 | ND |
| 2014-01-21 | AC39489 | ND |
| 2014-01-21 | AC39488 | ND |
| 2014-05-20 | AC54644 | ND |
| 2014-05-20 | AC54643 | ND |
| 2015-03-25 | AC85995 | ND |
| 2017-03-14 | AD74843 | ND |
| 2017-03-14 | AD74851 | ND |
| 2017-03-14 | AD74847 | ND |
| 2017-05-31 | AD86067 | ND |
| 2017-05-31 | AD86068 | ND |
| 2018-03-05 | AE16567 | ND |