Silver
Sierra Madre Water Department
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.
10
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 | 5 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 5 | 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 |
|---|---|---|
| 2014-05-12 | 9588-003-1030 | ND |
| 2014-05-12 | 9588-004-1045 | ND |
| 2014-05-12 | 9588-005-1105 | ND |
| 2014-05-12 | 9588-006-1055 | ND |
| 2014-05-12 | 9588-007-1125 | ND |
| 2017-05-03 | 9588-003-1030 | ND |
| 2017-05-03 | 9588-004-1045 | ND |
| 2017-05-03 | 9588-005-0930 | ND |
| 2017-05-03 | 9588-006-0940 | ND |
| 2017-05-03 | 9588-007-1010 | ND |