Silver
Zachary Water System
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.
20
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 10 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-01-12 | 35225030003 | ND |
| 2016-01-12 | 35225030003 | ND |
| 2016-07-26 | AE08225 | ND |
| 2016-07-26 | AE08221 | ND |
| 2016-07-26 | AE08209 | ND |
| 2016-07-26 | AE08213 | ND |
| 2016-07-26 | AE08221 | ND |
| 2016-07-26 | AE08225 | ND |
| 2016-07-26 | AE08213 | ND |
| 2016-07-26 | AE08209 | ND |
| 2018-11-26 | B1805544-001 | ND |
| 2018-11-26 | B1805544-001 | ND |
| 2019-06-18 | B1902537-001 | ND |
| 2019-06-18 | B1902537-004 | ND |
| 2019-06-18 | B1902537-003 | ND |
| 2019-06-18 | B1902537-002 | ND |
| 2019-06-18 | B1902537-001 | ND |
| 2019-06-18 | B1902537-004 | ND |
| 2019-06-18 | B1902537-003 | ND |
| 2019-06-18 | B1902537-002 | ND |