Silver
City of Denison
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.
10
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-25 | Q1406059013 | ND |
| 2014-02-25 | Q1406059014 | ND |
| 2015-03-03 | Q1507894009 | ND |
| 2015-06-15 | Q1522052004 | ND |
| 2016-02-16 | Q1606768007 | ND |
| 2016-02-16 | Q1606768008 | ND |
| 2017-02-07 | Q1705466004 | ND |
| 2017-08-08 | Q1733790004 | ND |
| 2018-03-13 | Q1810518009 | ND |
| 2019-03-04 | Q1909364005 | ND |