Silver
Quartz Hill Water District
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.
20
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 | 5 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-13 | 3761-021-0735 | ND |
| 2014-10-21 | 3761-015-0833 | ND |
| 2014-10-21 | 3761-012-0722 | ND |
| 2014-10-21 | 3761-009-0800 | ND |
| 2014-10-21 | 3761-005-0700 | ND |
| 2015-08-18 | 3761-021-0730 | ND |
| 2015-08-18 | 3761-016-0740 | ND |
| 2015-08-18 | 3761-018-0710 | ND |
| 2015-08-18 | 3761-017-0800 | ND |
| 2016-08-16 | 3761-006-0745 | ND |
| 2016-08-16 | 3761-012-0800 | ND |
| 2017-08-15 | 3761-015-0650 | ND |
| 2017-08-15 | 3761-009-0705 | ND |
| 2017-08-15 | 3761-005-0715 | ND |
| 2018-08-14 | 3761-017-0800 | ND |
| 2018-08-14 | 3761-016-0730 | ND |
| 2018-08-14 | 3761-018-0820 | ND |
| 2018-08-14 | 3761-021-0710 | ND |
| 2019-08-13 | 3761-012-0655 | ND |
| 2019-08-13 | 3761-006-0715 | ND |