Silver
City of Modesto, Salida
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.
15
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-08 | 1610-006-1025 | ND |
| 2014-10-01 | 1610-007-1118 | ND |
| 2015-01-07 | 1610-001-1015 | ND |
| 2015-12-02 | 1610-005-0745 | ND |
| 2016-01-06 | 1610-009-1045 | ND |
| 2016-01-06 | 1610-017-0815 | ND |
| 2016-01-06 | 1610-017-1045 | ND |
| 2016-12-07 | 1610-007-0825 | ND |
| 2016-12-07 | 1610-008-1110 | ND |
| 2017-05-03 | 1610-006-0815 | ND |
| 2018-05-02 | 1610-001-0857 | ND |
| 2018-05-02 | 1610-005-0929 | ND |
| 2019-05-01 | 1610-007-0855 | ND |
| 2019-05-01 | 1610-008-1125 | ND |
| 2019-05-01 | 1610-017-1035 | ND |