Silver
Clearwater Water 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.
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 | 0.0333 ppb | 3 | 1 | ND - 0.1000 ppb |
2016 | 0.0333 ppb | 3 | 1 | ND - 0.1000 ppb |
2017 | 0.0333 ppb | 3 | 1 | ND - 0.1000 ppb |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
Date | Result |
---|---|
2015-01-13 | ND |
2015-01-13 | 0.1000 ppb |
2015-05-07 | ND |
2016-01-25 | 0.1000 ppb |
2016-01-25 | ND |
2016-01-25 | ND |
2017-05-11 | 0.1000 ppb |
2017-05-16 | ND |
2017-05-16 | ND |
2018-02-26 | ND |
2018-02-26 | ND |
2018-02-26 | ND |
2019-02-05 | ND |
2019-02-05 | ND |
2019-02-05 | ND |