Silver
City of Ennis
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 |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
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 |
---|---|---|
2014-03-18 | Q1408706002 | ND |
2015-03-16 | Q1509550002 | ND |
2016-02-24 | Q1607814001 | ND |
2017-02-09 | Q1705815001 | ND |
2018-01-23 | Q1802502001 | ND |
2019-08-21 | Q1957804005 | ND |