Silver
Burlington City 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.
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 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | 2.00 ppb | 1 | 1 | 2.00 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-20 | L4899456-2 | ND |
| 2015-03-06 | L5408688-2 | ND |
| 2016-03-31 | L6017028-2 | ND |
| 2017-03-16 | 370316038.2 | ND |
| 2018-06-28 | 380628056.2 | ND |
| 2019-03-07 | 390307738.2 | 2.00 ppb |