Silver
City of Nacogdoches
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-04 | Q1406781002 | ND |
| 2015-03-13 | Q1509587001 | ND |
| 2016-02-23 | Q1607697001 | ND |
| 2016-02-23 | Q1607697002 | ND |
| 2017-02-08 | Q1705626002 | ND |
| 2018-01-30 | Q1803538001 | ND |
| 2019-01-17 | Q1902680012 | ND |
| 2019-01-17 | Q1902680002 | ND |