Silver
Henry County Water 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.
14
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 4 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-27 | 140127036-1 | ND |
| 2016-03-10 | 160311014-4 | ND |
| 2016-03-10 | 160311014-3 | ND |
| 2016-03-10 | 160311014-1 | ND |
| 2016-03-10 | 160311014-2 | ND |
| 2018-07-03 | 1807-00035-1 | ND |
| 2019-06-03 | 20106524004_IIOC | ND |
| 2019-06-03 | 20106524004_IIOC | ND |
| 2019-06-03 | 20106524002_IIOC | ND |
| 2019-06-03 | 20106524002_IIOC | ND |
| 2019-06-03 | 20106524003_IIOC | ND |
| 2019-06-03 | 20106524003_IIOC | ND |
| 2019-06-03 | 20106524001_IIOC | ND |
| 2019-06-03 | 20106524001_IIOC | ND |