Silver
Calcasieu Parish WW District No 1
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 | 8 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-31 | AD90294 | ND |
| 2014-03-31 | AD90284 | ND |
| 2014-03-31 | AD90279 | ND |
| 2014-03-31 | AD90274 | ND |
| 2014-03-31 | AD90274 | ND |
| 2014-03-31 | AD90279 | ND |
| 2014-03-31 | AD90284 | ND |
| 2014-03-31 | AD90294 | ND |
| 2016-10-24 | 35272382001 | ND |
| 2016-10-24 | 35272382001 | ND |
| 2017-03-13 | AE13248 | ND |
| 2017-03-13 | AE13260 | ND |
| 2017-03-13 | AE13256 | ND |
| 2017-03-13 | AE13252 | ND |
| 2017-03-13 | AE13248 | ND |
| 2017-03-13 | AE13260 | ND |
| 2017-03-13 | AE13256 | ND |
| 2017-03-13 | AE13252 | ND |
| 2019-07-16 | B1903028-001 | ND |
| 2019-07-16 | B1903028-001 | ND |