Silver
Pajaro Community Services District
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.
5
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 | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 1.20 ppb | 2 | 1 | ND - 2.40 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-13 | CA2710020_002_002-201808131300 | ND |
| 2021-08-09 | CA2710020_002_002-202108090900 | ND |
| 2022-08-08 | CA2710020_002_002-202208080815 | ND |
| 2023-03-24 | CA2710020_002_002-202303241200 | 2.40 ppb |
| 2023-03-27 | CA2710020_DST_802-202303271043 | ND |