Silver
Chuckawalla Valley/ironwood State Prison
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.
8
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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-05 | 4790-002-0945 | ND |
| 2014-02-05 | 4790-006-0929 | ND |
| 2014-03-19 | 4790-002-0705 | ND |
| 2014-03-19 | 4790-006-0745 | ND |
| 2015-05-20 | 4790-003-0932 | ND |
| 2017-02-22 | 9469-002-0925 | ND |
| 2017-02-22 | 9469-006-0806 | ND |
| 2018-05-16 | 9469-003-0725 | ND |