Silver
Perkasie Regional Authority
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.
34
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 | 8 | 0 | ND |
| 2016 | ND | 10 | 0 | ND |
| 2017 | ND | 8 | 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 |
|---|---|---|
| 2014-06-10 | L5101092-13 | ND |
| 2014-06-10 | L5101092-14 | ND |
| 2014-06-10 | L5101092-15 | ND |
| 2014-06-10 | L5101092-16 | ND |
| 2014-12-09 | L4905022-2 | ND |
| 2014-12-09 | L4905022-3 | ND |
| 2014-12-09 | L4905022-4 | ND |
| 2014-12-09 | L4905022-1 | ND |
| 2015-06-09 | 12867573 | ND |
| 2015-06-09 | 12867630 | ND |
| 2015-06-09 | 12867592 | ND |
| 2015-06-09 | 12867611 | ND |
| 2015-12-08 | 13619608 | ND |
| 2015-12-08 | 13619589 | ND |
| 2015-12-08 | 13619570 | ND |
| 2015-12-08 | 13619551 | ND |
| 2016-06-07 | 14552012 | ND |
| 2016-06-07 | 14551955 | ND |
| 2016-06-07 | 14551974 | ND |
| 2016-06-07 | 14551993 | ND |
| 2016-06-21 | 14552050 | ND |
| 2016-06-21 | 14552031 | ND |
| 2016-12-06 | 15356256 | ND |
| 2016-12-06 | 15356274 | ND |
| 2016-12-06 | 15356292 | ND |
| 2016-12-06 | 15356310 | ND |
| 2017-06-06 | 16548917 | ND |
| 2017-06-06 | 16548971 | ND |
| 2017-06-06 | 16548953 | ND |
| 2017-06-06 | 16548935 | ND |
| 2017-12-05 | 17286721 | ND |
| 2017-12-05 | 17286737 | ND |
| 2017-12-05 | 17286705 | ND |
| 2017-12-05 | 17286753 | ND |