Silver
California Water Service - 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.
52
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 | 11 | 0 | ND |
| 2015 | ND | 11 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 12 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-05 | 5810-013-1312 | ND |
| 2014-04-02 | 5810-015-1131 | ND |
| 2014-04-28 | 5810-013-1211 | ND |
| 2014-04-28 | 5810-050-1115 | ND |
| 2014-05-07 | 5810-055-1159 | ND |
| 2014-06-03 | 5810-132-1252 | ND |
| 2014-06-03 | 5810-130-1125 | ND |
| 2014-06-04 | 5810-058-1024 | ND |
| 2014-06-25 | 5810-053-1203 | ND |
| 2014-07-30 | 5810-029-1109 | ND |
| 2014-11-18 | 5810-062-1326 | ND |
| 2015-01-22 | 5810-054-1248 | ND |
| 2015-04-08 | 5810-051-1231 | ND |
| 2015-04-27 | 5810-050-1210 | ND |
| 2015-05-12 | 5810-018-0655 | ND |
| 2015-05-20 | 5810-028-1020 | ND |
| 2015-05-20 | 5810-007-1145 | ND |
| 2015-07-14 | 5810-056-1420 | ND |
| 2015-08-16 | 1610-133-1900 | ND |
| 2015-10-15 | 5810-060-1245 | ND |
| 2015-11-19 | 5810-059-1021 | ND |
| 2015-12-09 | 5810-018-0523 | ND |
| 2016-02-22 | 5810-052-0736 | ND |
| 2016-02-22 | 5810-067-0916 | ND |
| 2016-02-23 | 5810-061-1150 | ND |
| 2016-05-10 | 5810-045-1040 | ND |
| 2016-10-19 | 5810-064-1200 | ND |
| 2016-11-08 | 5810-063-1145 | ND |
| 2017-04-18 | 5810-015-1348 | ND |
| 2017-04-24 | 5810-007-1010 | ND |
| 2017-05-15 | 5810-055-1508 | ND |
| 2017-05-24 | 5810-018-1052 | ND |
| 2017-06-08 | 5810-058-1152 | ND |
| 2017-06-12 | 5810-132-1026 | ND |
| 2017-06-13 | 5810-130-1250 | ND |
| 2017-06-13 | 5810-053-0930 | ND |
| 2017-08-15 | 5810-029-1255 | ND |
| 2017-10-02 | 5701-131-1340 | ND |
| 2017-11-08 | 5810-062-1455 | ND |
| 2017-12-13 | 5810-050-1050 | ND |
| 2018-04-11 | 5810-051-1335 | ND |
| 2018-05-01 | 5810-054-1330 | ND |
| 2018-06-07 | 5810-060-1250 | ND |
| 2018-06-07 | 5810-059-1340 | ND |
| 2018-07-18 | 5810-056-1225 | ND |
| 2018-08-15 | 5810-133-1335 | ND |
| 2018-08-28 | 5810-028-1130 | ND |
| 2018-10-09 | 5810-028-1205 | ND |
| 2019-01-10 | 5810-061-1020 | ND |
| 2019-02-13 | 5810-052-1252 | ND |
| 2019-02-13 | 5810-067-1349 | ND |
| 2019-11-12 | 5810-063-1115 | ND |