Silver
City of Santa Ana
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.
52
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 | 9 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 18 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 12 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-18 | 4417-038-0730 | ND |
| 2014-02-18 | 4417-037-1255 | ND |
| 2014-02-18 | 4417-033-1010 | ND |
| 2014-02-18 | 4417-030-0845 | ND |
| 2014-02-18 | 4417-022-0905 | ND |
| 2014-02-18 | 4417-021-0820 | ND |
| 2014-08-20 | 4417-035-0710 | ND |
| 2014-08-20 | 4417-025-0725 | ND |
| 2014-08-20 | 4417-018-0915 | ND |
| 2015-02-24 | 4417-073-0940 | ND |
| 2015-02-24 | 4417-028-0905 | ND |
| 2015-05-19 | 4417-019-0840 | ND |
| 2015-05-19 | 4417-074-1050 | ND |
| 2016-02-16 | 4417-026-1110 | ND |
| 2016-02-16 | 4417-027-1000 | ND |
| 2016-02-16 | 4417-061-0915 | ND |
| 2016-02-16 | 4417-039-1025 | ND |
| 2016-03-07 | 4417-029-0810 | ND |
| 2016-05-24 | 4417-021-0820 | ND |
| 2016-05-24 | 4417-030-0840 | ND |
| 2016-05-24 | 4417-022-0905 | ND |
| 2016-05-24 | 4417-034-1220 | ND |
| 2016-06-22 | 4417-031-0635 | ND |
| 2016-06-22 | 4417-033-0715 | ND |
| 2016-07-07 | 4417-025-0630 | ND |
| 2016-08-03 | 4417-028-0955 | ND |
| 2016-08-03 | 4417-018-0800 | ND |
| 2016-08-03 | 4417-038-1025 | ND |
| 2016-08-03 | 4417-037-0845 | ND |
| 2016-08-03 | 4417-035-0830 | ND |
| 2016-08-03 | 4417-034-0710 | ND |
| 2017-05-16 | 4417-019-0950 | ND |
| 2018-02-21 | 4417-037-0610 | ND |
| 2018-02-21 | 4417-039-0830 | ND |
| 2018-02-21 | 4417-021-1050 | ND |
| 2018-02-21 | 4417-074-0920 | ND |
| 2018-04-26 | 4417-035-0815 | ND |
| 2018-05-15 | 4417-022-1240 | ND |
| 2018-05-15 | 4417-025-1050 | ND |
| 2018-10-11 | 4417-038-0800 | ND |
| 2019-03-11 | 4417-027-1030 | ND |
| 2019-03-11 | 4417-031-1110 | ND |
| 2019-03-11 | 4417-026-1140 | ND |
| 2019-03-11 | 4417-061-0940 | ND |
| 2019-03-11 | 4417-038-0815 | ND |
| 2019-03-20 | 4417-030-1335 | ND |
| 2019-05-07 | 4417-028-1010 | ND |
| 2019-07-23 | 4417-033-0750 | ND |
| 2019-07-23 | 4417-034-1020 | ND |
| 2019-09-17 | 4417-073-0815 | ND |
| 2019-11-05 | 4417-073-1505 | ND |
| 2019-11-05 | 4417-073-1455 | ND |