Silver
Los Angeles County WW District 4 & 34-Lancaster
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.
49
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 | 2 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 18 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 21 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-26 | 5442-055-1034 | ND |
| 2014-06-26 | 5442-093-0850 | ND |
| 2015-01-28 | 5442-053-0915 | ND |
| 2015-04-13 | 5442-054-0940 | ND |
| 2015-08-18 | 5442-037-0930 | ND |
| 2016-01-19 | 5442-035-0950 | ND |
| 2016-01-19 | 5442-040-0945 | ND |
| 2016-01-25 | 5442-062-0930 | ND |
| 2016-01-25 | 5442-028-0840 | ND |
| 2016-01-25 | 5442-048-0940 | ND |
| 2016-02-09 | 5442-016-1028 | ND |
| 2016-02-09 | 5442-070-1110 | ND |
| 2016-02-09 | 5442-069-1010 | ND |
| 2016-02-09 | 5442-068-1025 | ND |
| 2016-02-10 | 5442-071-1125 | ND |
| 2016-03-09 | 5442-023-1041 | ND |
| 2016-03-28 | 5442-011-1138 | ND |
| 2016-03-28 | 5442-067-0856 | ND |
| 2016-04-20 | 5442-041-0934 | ND |
| 2016-04-20 | 5442-026-1016 | ND |
| 2016-06-08 | 5442-036-0945 | ND |
| 2016-06-27 | 5442-094-1125 | ND |
| 2016-06-27 | 5442-095-1050 | ND |
| 2017-11-21 | 9590-063-1010 | ND |
| 2017-11-21 | 9590-055-0940 | ND |
| 2017-11-21 | 9590-045-0935 | ND |
| 2017-12-27 | 9590-093-1115 | ND |
| 2017-12-27 | 9590-063-1010 | ND |
| 2019-02-06 | 9590-067-1100 | ND |
| 2019-02-11 | 9590-071-1120 | ND |
| 2019-02-11 | 9590-070-1125 | ND |
| 2019-02-19 | 9590-011-1145 | ND |
| 2019-02-26 | 9590-048-1225 | ND |
| 2019-02-26 | 9590-062-1210 | ND |
| 2019-02-26 | 9590-028-1150 | ND |
| 2019-03-13 | 9590-095-0940 | ND |
| 2019-03-13 | 9590-095-0925 | ND |
| 2019-03-13 | 9590-036-1035 | ND |
| 2019-03-13 | 9590-094-0920 | ND |
| 2019-03-19 | 9590-041-0930 | ND |
| 2019-03-19 | 9590-054-1300 | ND |
| 2019-03-19 | 9590-035-1120 | ND |
| 2019-03-19 | 9590-053-1315 | ND |
| 2019-03-19 | 9590-040-1145 | ND |
| 2019-03-26 | 9590-069-0945 | ND |
| 2019-06-19 | 9590-037-1000 | ND |
| 2019-08-12 | 9590-026-0900 | ND |
| 2019-08-19 | 9590-023-1020 | ND |
| 2019-12-23 | 9590-095-0933 | ND |