Silver
Dallas Water Utility
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.
18
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-19 | Q1405420002 | ND |
| 2014-05-22 | Q1417683004 | ND |
| 2014-05-22 | Q1417683003 | ND |
| 2015-01-15 | Q1501302002 | ND |
| 2015-03-11 | Q1509063004 | ND |
| 2015-04-20 | Q1514656003 | ND |
| 2016-01-12 | Q1601371002 | ND |
| 2016-02-11 | Q1606396002 | ND |
| 2016-09-14 | Q1637473006 | ND |
| 2017-01-03 | Q1700179010 | ND |
| 2017-01-24 | Q1703294003 | ND |
| 2017-08-23 | Q1737870005 | ND |
| 2018-01-04 | Q1800411020 | ND |
| 2018-08-07 | Q1831263008 | ND |
| 2018-08-07 | Q1831263007 | ND |
| 2019-01-08 | Q1900829001 | ND |
| 2019-07-16 | Q1945074010 | ND |
| 2019-07-16 | Q1945074011 | ND |