Silver
Northwest Harris County MUD 5
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.
9
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 | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-10-14 | AC69572 | ND |
| 2014-10-14 | AC69575 | ND |
| 2016-11-09 | AD57314 | ND |
| 2017-08-08 | AD92355 | ND |
| 2017-09-26 | AD97951 | ND |
| 2017-09-26 | AD97953 | ND |
| 2018-02-07 | AE12679 | ND |
| 2019-02-05 | AE52836 | ND |
| 2019-03-26 | AE59931 | ND |