Silver
Yolo County Housing Authority
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.
8
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 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-13 | 1233-001-1020 | ND |
| 2014-08-13 | 1233-002-1100 | ND |
| 2017-07-05 | 1233-001-1140 | ND |
| 2017-07-05 | 1233-002-1250 | ND |
| 2018-08-15 | 1233-009-1000 | ND |
| 2018-11-14 | 1233-009-0950 | ND |
| 2019-02-20 | 1233-009-0900 | ND |
| 2019-05-08 | 1233-001-0900 | ND |