Silver
City of Opelousas Water System
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.
22
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 |
|---|---|---|---|---|
| 2018 | ND | 10 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 6 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-09 | AE20408 | ND |
| 2018-01-09 | AE20412 | ND |
| 2018-01-09 | AE20416 | ND |
| 2018-01-09 | AE20420 | ND |
| 2018-01-09 | AE20404 | ND |
| 2018-01-09 | AE20408 | ND |
| 2018-01-09 | AE20412 | ND |
| 2018-01-09 | AE20416 | ND |
| 2018-01-09 | AE20420 | ND |
| 2018-01-09 | AE20404 | ND |
| 2020-08-17 | B2004149-002 | ND |
| 2020-08-17 | B2004149-001 | ND |
| 2021-01-19 | B2100163-001 | ND |
| 2021-01-19 | B2100163-002 | ND |
| 2021-01-19 | B2100163-003 | ND |
| 2021-01-19 | B2100163-004 | ND |
| 2023-08-28 | B2303557-001 | ND |
| 2023-08-28 | B2303557-002 | ND |
| 2023-08-28 | B2303557-003 | ND |
| 2023-08-28 | B2303557-004 | ND |
| 2023-08-28 | B2303557-005 | ND |
| 2023-08-28 | B2303557-006 | ND |