Silver
Calcasieu Parish WW District 9 Carlyss
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.
16
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 | 4 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 6 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-24 | AD89309 | ND |
| 2014-02-24 | AD89309 | ND |
| 2014-03-31 | AD90289 | ND |
| 2014-03-31 | AD90289 | ND |
| 2016-05-02 | 35242594003 | ND |
| 2016-05-02 | 35242594003 | ND |
| 2016-11-29 | AE12023 | ND |
| 2016-11-29 | AE12027 | ND |
| 2016-11-29 | AE12023 | ND |
| 2016-11-29 | AE12027 | ND |
| 2018-10-16 | B1804946-001 | ND |
| 2018-10-16 | B1804946-001 | ND |
| 2019-10-22 | B1904760-001 | ND |
| 2019-10-22 | B1904760-001 | ND |
| 2019-10-29 | B1904818-001 | ND |
| 2019-10-29 | B1904818-001 | ND |