Silver
City of Toyah
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | 0.400 ppb | 1 | 1 | 0.400 ppb |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-20 | Q1405719001 | ND |
| 2015-03-11 | Q1509156002 | 0.400 ppb |
| 2016-02-04 | Q1605233004 | ND |
| 2017-05-10 | Q1719628001 | ND |
| 2018-01-25 | Q1803183003 | ND |
| 2019-05-02 | Q1918340010 | ND |