Silver
Cal-water Service Company-oroville
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.
12
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-04-07 | 5810-006-1050 | ND |
| 2015-08-20 | 5810-005-1420 | ND |
| 2015-08-20 | 5810-009-1100 | ND |
| 2016-04-13 | 5810-007-1215 | ND |
| 2016-04-13 | 5810-008-1230 | ND |
| 2016-08-09 | 5810-005-1330 | ND |
| 2017-08-22 | 5810-005-1230 | ND |
| 2018-04-11 | 5810-006-1310 | ND |
| 2018-08-30 | 5810-009-1246 | ND |
| 2019-04-11 | 5810-007-1030 | ND |
| 2019-04-11 | 5810-008-1010 | ND |
| 2019-08-14 | 5810-005-1333 | ND |