Silver
City of Stockton
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.
33
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 | 4 | 0 | ND |
| 2015 | ND | 7 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-11 | 5810-104-0950 | ND |
| 2014-08-11 | 5810-083-0900 | ND |
| 2014-08-12 | 5810-096-0950 | ND |
| 2014-08-12 | 5810-094-0925 | ND |
| 2015-06-10 | 5810-104-1000 | ND |
| 2015-08-12 | 5810-038-0850 | ND |
| 2015-08-12 | 5810-040-0915 | ND |
| 2015-08-13 | 5810-037-1100 | ND |
| 2015-08-13 | 5810-087-1130 | ND |
| 2015-08-13 | 5810-039-1015 | ND |
| 2015-08-19 | 5810-084-0910 | ND |
| 2016-06-21 | 5867-104-1116 | ND |
| 2016-08-18 | 5867-046-0830 | ND |
| 2016-08-18 | 5867-100-0940 | ND |
| 2016-08-18 | 5867-098-0900 | ND |
| 2016-08-18 | 5867-092-1020 | ND |
| 2016-08-25 | 5867-003-0927 | ND |
| 2016-08-25 | 5867-055-1101 | ND |
| 2016-08-25 | 5867-089-1030 | ND |
| 2017-06-22 | 5867-104-1002 | ND |
| 2017-08-08 | 5867-094-0810 | ND |
| 2017-08-08 | 5867-083-0900 | ND |
| 2018-06-27 | 9590-104-1200 | ND |
| 2018-08-14 | 9590-038-1110 | ND |
| 2018-08-22 | 9590-084-1150 | ND |
| 2018-08-22 | 9590-055-1110 | ND |
| 2018-08-29 | 9590-087-1140 | ND |
| 2018-08-29 | 9590-037-1110 | ND |
| 2019-06-11 | 1610-104-1005 | ND |
| 2019-08-06 | 1610-092-0910 | ND |
| 2019-08-06 | 1610-096-1000 | ND |
| 2019-08-06 | 1610-098-0800 | ND |
| 2019-08-06 | 1610-046-0840 | ND |