Silver
City of Escondido
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.
23
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 | ND | 4 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-12 | 2706-019-1001 | ND |
| 2014-05-12 | 2706-018-1022 | ND |
| 2014-11-17 | 2706-019-1043 | ND |
| 2014-11-17 | 2706-018-1110 | ND |
| 2015-02-09 | 2706-018-1120 | ND |
| 2015-05-18 | 2706-019-1010 | ND |
| 2015-05-18 | 2706-018-1110 | ND |
| 2015-11-16 | 2706-018-1104 | ND |
| 2015-11-16 | 2706-019-1038 | ND |
| 2016-05-16 | 2706-018-1010 | ND |
| 2016-05-16 | 2706-019-0919 | ND |
| 2016-11-14 | 2706-019-0953 | ND |
| 2016-11-14 | 2706-018-1028 | ND |
| 2017-05-09 | 2706-018-1050 | ND |
| 2017-11-13 | 2706-018-0730 | ND |
| 2017-11-13 | 2706-019-0843 | ND |
| 2018-05-15 | 2706-019-0916 | ND |
| 2018-05-15 | 2706-018-0838 | ND |
| 2018-11-13 | 2706-019-1110 | ND |
| 2018-11-13 | 2706-018-1035 | ND |
| 2019-05-13 | 2706-018-0830 | ND |
| 2019-11-12 | 2706-019-0800 | ND |
| 2019-11-12 | 2706-018-0845 | ND |