Silver
La Verne WD
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.
19
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 9 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-02-03 | 4790-009-1048 | ND |
| 2016-02-03 | 4790-010-1043 | ND |
| 2016-02-03 | 4790-016-1143 | ND |
| 2016-02-10 | 4790-039-0915 | ND |
| 2016-02-10 | 4790-008-1018 | ND |
| 2016-02-10 | 4790-032-1146 | ND |
| 2016-02-17 | 4790-046-1140 | ND |
| 2016-02-24 | 4790-012-0921 | ND |
| 2016-11-03 | 4790-018-1000 | ND |
| 2017-03-22 | 4790-018-1345 | ND |
| 2017-08-03 | 4790-018-0750 | ND |
| 2019-03-20 | 4790-016-0905 | ND |
| 2019-03-20 | 4790-046-0700 | ND |
| 2019-03-20 | 4790-039-0915 | ND |
| 2019-03-20 | 4790-032-1145 | ND |
| 2019-03-20 | 4790-012-0930 | ND |
| 2019-03-20 | 4790-010-0730 | ND |
| 2019-03-20 | 4790-009-0830 | ND |
| 2019-03-20 | 4790-008-0800 | ND |