Silver
City of Paris
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 1 | 0 | ND |
| 2015 | 1.30 ppb | 1 | 1 | 1.30 ppb |
| 2016 | 0.470 ppb | 1 | 1 | 0.470 ppb |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-28 | Q1402577001 | ND |
| 2015-01-26 | Q1502731002 | 1.30 ppb |
| 2016-01-13 | Q1601286002 | 0.470 ppb |
| 2017-11-09 | Q1757625001 | ND |
| 2018-01-29 | Q1803263003 | ND |
| 2019-01-30 | Q1904514002 | ND |