Silver
City of Katy
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.
13
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 | 4 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-23 | AC40001 | ND |
| 2014-01-23 | AC39998 | ND |
| 2014-01-23 | AC39999 | ND |
| 2014-01-23 | AC40002 | ND |
| 2016-01-14 | AD18135 | ND |
| 2016-03-15 | AD28731 | ND |
| 2017-02-09 | AD69862 | ND |
| 2017-02-09 | AD69861 | ND |
| 2017-02-09 | AD69856 | ND |
| 2017-02-09 | AD69848 | ND |
| 2017-02-09 | AD69849 | ND |
| 2019-01-14 | AE49500 | ND |
| 2019-01-14 | AE49498 | ND |