Silver
City of Newport Beach
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.
8
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 4 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-03-02 | 4417-004-0815 | ND |
| 2015-03-02 | 4417-005-0835 | ND |
| 2015-05-04 | 4417-002-1050 | ND |
| 2015-05-04 | 4417-003-1115 | ND |
| 2017-02-09 | 4417-004-0950 | ND |
| 2017-05-03 | 4417-002-1235 | ND |
| 2017-05-03 | 4417-003-1220 | ND |
| 2017-05-03 | 4417-005-1145 | ND |