Silver
City of Pearland
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 | 9 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 8 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-04-02 | AC49015 | ND |
2014-04-02 | AC49012 | ND |
2014-04-02 | AC49014 | ND |
2014-04-02 | AC49009 | ND |
2014-04-03 | AC49194 | ND |
2014-04-03 | AC49195 | ND |
2014-04-03 | AC49193 | ND |
2014-04-03 | AC49192 | ND |
2014-05-09 | AC53751 | ND |
2015-04-21 | AC88963 | ND |
2015-04-21 | AC88962 | ND |
2017-01-17 | AD65041 | ND |
2017-01-17 | AD65042 | ND |
2017-04-12 | AD79404 | ND |
2017-04-12 | AD79401 | ND |
2017-04-12 | AD79405 | ND |
2017-07-18 | AD89627 | ND |
2017-09-14 | AD96174 | ND |
2017-09-14 | AD96176 | ND |
2018-06-25 | AE31126 | ND |
2018-06-25 | AE31125 | ND |