Silver
Marion Waterworks
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 | N/A | 0 | 0 | N/A |
| 2015 | 1.20 ppb | 3 | 2 | ND - 1.80 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-09-16 | Y152600003 | ND |
| 2015-09-16 | Y152600001 | 1.80 ppb |
| 2015-11-19 | Y153240001 | 1.80 ppb |
| 2017-12-06 | Y173410001 | ND |
| 2018-01-18 | Y180190041 | ND |
| 2018-04-10 | Y181020027 | ND |
| 2018-08-15 | Y182280007 | ND |
| 2018-08-15 | Y182280001 | ND |
| 2018-09-10 | Y182560022 | ND |
| 2018-10-15 | Y182910002 | ND |