Silver
CTWC - Unionville System
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.
13
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 | 6 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-21 | BG01729IOC1 | ND |
| 2014-01-22 | BG01731IOC1 | ND |
| 2014-01-22 | BG01732IOC1 | ND |
| 2014-01-22 | BG01733IOC1 | ND |
| 2014-01-22 | BG01734IOC1 | ND |
| 2014-02-12 | BG09388IOC1 | ND |
| 2015-07-13 | BJ46096IOC1 | ND |
| 2015-07-13 | BJ46097IOC1 | ND |
| 2015-07-13 | BJ46098IOC1 | ND |
| 2015-07-15 | BJ47090IOC1 | ND |
| 2018-11-14 | IOC1 200512788 | ND |
| 2019-09-17 | IOC1 200549386 | ND |
| 2019-09-17 | IOC1 200549392 | ND |