Silver
City of Deer Park
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.
8
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-01-27 | AD20295 | ND |
| 2016-06-17 | AD41104 | ND |
| 2016-10-04 | AD52412 | ND |
| 2017-05-15 | AD84137 | ND |
| 2017-05-15 | AD84136 | ND |
| 2017-05-15 | AD84135 | ND |
| 2018-09-10 | AE39300 | ND |
| 2019-01-16 | AE50043 | ND |