Silver
Harvest-Monrovia Water System
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.
6
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | 0.251 ppb | 3 | 1 | ND - 0.754 ppb |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-06-01 | AB12097 | 0.754 ppb |
| 2016-06-01 | AB12098 | ND |
| 2016-09-07 | AB14877 | ND |
| 2019-06-05 | AB35590 | ND |
| 2019-06-05 | AB35591 | ND |
| 2019-06-05 | AB35592 | ND |