Silver
Los Angeles Department of Water and Power
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.
53
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 | 8 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | ND | 10 | 0 | ND |
| 2017 | ND | 9 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-26 | 1200-133-1215 | ND |
| 2014-02-26 | 1200-011-1215 | ND |
| 2014-05-14 | 1200-133-1105 | ND |
| 2014-05-14 | 1200-011-1115 | ND |
| 2014-08-12 | 1200-011-1030 | ND |
| 2014-08-20 | 1200-133-0900 | ND |
| 2014-11-12 | 1200-011-1240 | ND |
| 2014-11-18 | 1200-133-0935 | ND |
| 2015-02-11 | 1200-133-0825 | ND |
| 2015-02-19 | 1200-011-0845 | ND |
| 2015-05-19 | 1200-011-0900 | ND |
| 2015-05-19 | 1200-133-1100 | ND |
| 2015-08-04 | 1200-011-1040 | ND |
| 2015-08-04 | 1200-133-0645 | ND |
| 2015-10-20 | 1200-205-1155 | ND |
| 2015-11-05 | 1200-133-0755 | ND |
| 2015-11-05 | 1200-011-1005 | ND |
| 2016-02-09 | 1200-133-0930 | ND |
| 2016-02-24 | 1200-011-1215 | ND |
| 2016-05-25 | 1200-011-1135 | ND |
| 2016-05-25 | 1200-133-1210 | ND |
| 2016-05-31 | 1200-133-1045 | ND |
| 2016-07-21 | 1200-205-1225 | ND |
| 2016-08-17 | 1200-011-1010 | ND |
| 2016-08-23 | 1200-133-1005 | ND |
| 2016-11-21 | 1200-133-1115 | ND |
| 2016-11-29 | 1200-011-0845 | ND |
| 2017-02-21 | 1200-011-1140 | ND |
| 2017-02-21 | 1200-133-1210 | ND |
| 2017-05-09 | 1200-011-0940 | ND |
| 2017-05-17 | 1200-133-0941 | ND |
| 2017-07-12 | 1200-205-1000 | ND |
| 2017-08-01 | 1200-133-0940 | ND |
| 2017-08-21 | 1200-011-1010 | ND |
| 2017-11-20 | 1200-133-1040 | ND |
| 2017-11-20 | 1200-011-1000 | ND |
| 2018-02-06 | 1200-011-1040 | ND |
| 2018-02-07 | 1200-133-0930 | ND |
| 2018-05-08 | 1200-133-0736 | ND |
| 2018-05-23 | 1200-011-0925 | ND |
| 2018-08-16 | 1200-011-0940 | ND |
| 2018-08-16 | 1200-133-0747 | ND |
| 2018-11-06 | 1200-011-0842 | ND |
| 2018-11-15 | 1200-133-0917 | ND |
| 2018-12-04 | 1200-133-0849 | ND |
| 2019-02-11 | 1200-133-1011 | ND |
| 2019-02-13 | 1200-011-1115 | ND |
| 2019-05-21 | 1200-011-1012 | ND |
| 2019-05-22 | 1200-133-0945 | ND |
| 2019-08-12 | 1200-011-1028 | ND |
| 2019-08-13 | 1200-133-0907 | ND |
| 2019-11-07 | 1200-133-0852 | ND |
| 2019-11-07 | 1200-011-0958 | ND |