Silver
Hollister Ranch Estates
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-12-09 | CA3500904_002_002-201912091255 | ND |
| 2019-12-09 | CA3500904_001_001-201912091238 | ND |
| 2022-12-12 | CA3500904_001_001-202212121240 | ND |
| 2022-12-12 | CA3500904_002_002-202212121255 | ND |
| 2023-10-10 | CA3500904_006_006-202310100910 | ND |