Silver
Southwest Ouachita Waterworks Inc.
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.
12
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 6 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 19.7 ppb | 6 | 2 | ND - 65.0 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2020-06-01 | B2002676-001 | ND |
| 2020-06-01 | B2002676-002 | ND |
| 2020-06-01 | B2002676-003 | ND |
| 2020-10-06 | B2005289-001 | ND |
| 2020-10-06 | B2005289-002 | ND |
| 2020-10-06 | B2005289-003 | ND |
| 2023-09-12 | B2303793-001 | ND |
| 2023-09-12 | B2303793-002 | ND |
| 2023-09-12 | B2303793-003 | ND |
| 2023-09-12 | B2303793-004 | ND |
| 2023-09-12 | B2303793-005 | 65.0 ppb |
| 2023-09-12 | B2303793-006 | 53.0 ppb |