Silver
U.s.n., San Nicolas Island
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.
13
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 | ND | 3 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 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 |
|---|---|---|
| 2014-12-02 | 5867-001-0345 | ND |
| 2014-12-02 | 5867-002-0405 | ND |
| 2015-04-28 | 5867-001-0620 | ND |
| 2015-04-28 | 5867-002-0615 | ND |
| 2015-06-16 | 5867-002-0545 | ND |
| 2016-05-03 | 5867-001-0630 | ND |
| 2016-05-03 | 5867-002-0630 | ND |
| 2017-04-18 | 5867-001-0530 | ND |
| 2017-04-18 | 5867-002-0530 | ND |
| 2018-04-03 | 5867-001-0545 | ND |
| 2018-04-03 | 5867-002-0530 | ND |
| 2019-04-09 | 5867-001-0425 | ND |
| 2019-04-09 | 5867-002-0500 | ND |