Silver
City of Rohnert Park
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.
52
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 | 9 | 0 | ND |
| 2015 | ND | 10 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 9 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-05 | 9541-007-1215 | ND |
| 2014-08-05 | 9541-010-1110 | ND |
| 2014-08-05 | 9541-009-1145 | ND |
| 2014-08-05 | 9541-008-1205 | ND |
| 2014-08-19 | 9541-016-0840 | ND |
| 2014-08-19 | 9541-014-0945 | ND |
| 2014-08-19 | 9541-011-1100 | ND |
| 2014-10-28 | 9541-044-0945 | ND |
| 2014-10-28 | 9541-041-0915 | ND |
| 2015-09-22 | 9541-039-1010 | ND |
| 2015-09-22 | 9541-029-1020 | ND |
| 2015-09-22 | 9541-001-0852 | ND |
| 2015-09-22 | 9541-012-1110 | ND |
| 2015-09-22 | 9541-040-1053 | ND |
| 2015-09-22 | 9541-005-1033 | ND |
| 2015-09-22 | 9541-004-0914 | ND |
| 2015-09-22 | 9541-002-0938 | ND |
| 2015-10-13 | 9541-031-0958 | ND |
| 2015-12-29 | 9541-030-0903 | ND |
| 2016-09-06 | 9541-034-0945 | ND |
| 2016-09-06 | 9541-035-1006 | ND |
| 2016-09-06 | 9541-027-0850 | ND |
| 2016-09-06 | 9541-022-0950 | ND |
| 2016-09-06 | 9541-021-0910 | ND |
| 2016-09-06 | 9541-018-0907 | ND |
| 2016-09-13 | 9541-033-0941 | ND |
| 2017-07-18 | 1610-016-0800 | ND |
| 2017-07-18 | 1610-014-0920 | ND |
| 2017-07-18 | 1610-041-1100 | ND |
| 2017-07-18 | 1610-011-0831 | ND |
| 2017-07-18 | 1610-010-0855 | ND |
| 2017-07-18 | 1610-009-1030 | ND |
| 2017-07-18 | 1610-008-1000 | ND |
| 2017-08-01 | 1610-044-0905 | ND |
| 2018-09-25 | 1610-040-0907 | ND |
| 2018-09-25 | 1610-029-0927 | ND |
| 2018-09-25 | 1610-031-0935 | ND |
| 2018-09-25 | 1610-030-0950 | ND |
| 2018-09-25 | 1610-005-0920 | ND |
| 2018-09-25 | 1610-004-0852 | ND |
| 2018-09-25 | 1610-002-0842 | ND |
| 2018-09-25 | 1610-001-0810 | ND |
| 2018-11-06 | 1610-006-0900 | ND |
| 2019-03-05 | 1610-013-1030 | ND |
| 2019-08-06 | 1610-039-0903 | ND |
| 2019-09-10 | 1610-035-0950 | ND |
| 2019-09-10 | 1610-034-0937 | ND |
| 2019-09-10 | 1610-033-0835 | ND |
| 2019-09-10 | 1610-021-0905 | ND |
| 2019-09-10 | 1610-018-0835 | ND |
| 2019-09-10 | 1610-006-0820 | ND |
| 2019-09-10 | 1610-004-0914 | ND |