Silver
Galveston County WCID 1
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.
6
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 |
|---|---|---|---|---|
| 2012 | N/A | 0 | 0 | N/A |
| 2013 | ND | 3 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 3 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2013-02-05 | AC09644 | ND |
| 2013-02-05 | AC09646 | ND |
| 2013-02-05 | AC09643 | ND |
| 2016-01-26 | AD19987 | ND |
| 2016-01-26 | AD19988 | ND |
| 2016-06-27 | AD41840 | ND |