Silver
City of Hanford
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.
24
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 13 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 10 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-12-14 | 5810-043-1400 | ND |
| 2015-12-14 | 5810-033-0840 | ND |
| 2015-12-14 | 5810-034-1230 | ND |
| 2015-12-14 | 5810-042-1045 | ND |
| 2015-12-14 | 5810-036-1220 | ND |
| 2015-12-14 | 5810-041-1420 | ND |
| 2015-12-14 | 5810-037-1200 | ND |
| 2015-12-14 | 5810-040-1125 | ND |
| 2015-12-14 | 5810-038-0815 | ND |
| 2015-12-14 | 5810-039-0945 | ND |
| 2015-12-15 | 5810-028-1145 | ND |
| 2015-12-15 | 5810-026-1018 | ND |
| 2015-12-15 | 5810-031-1055 | ND |
| 2018-12-18 | 5810-043-0935 | ND |
| 2018-12-18 | 5810-042-0820 | ND |
| 2018-12-18 | 5810-033-1120 | ND |
| 2018-12-18 | 5810-031-1015 | ND |
| 2018-12-20 | 5810-037-1000 | ND |
| 2018-12-20 | 5810-040-0855 | ND |
| 2018-12-20 | 5810-036-1045 | ND |
| 2018-12-20 | 5810-041-0835 | ND |
| 2018-12-20 | 5810-034-1015 | ND |
| 2018-12-20 | 5810-028-0930 | ND |
| 2019-05-09 | 5810-039-1100 | ND |