Silver
Ward II Water 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.
66
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 | 6 | 0 | ND |
| 2015 | ND | 20 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 26 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-24 | AD92622 | ND |
| 2014-06-24 | AD92612 | ND |
| 2014-06-24 | AD92617 | ND |
| 2014-06-24 | AD92622 | ND |
| 2014-06-24 | AD92617 | ND |
| 2014-06-24 | AD92612 | ND |
| 2015-07-20 | 35198654001 | ND |
| 2015-07-20 | 35198654001 | ND |
| 2015-09-21 | 35208876005 | ND |
| 2015-09-21 | 35208876001 | ND |
| 2015-09-21 | 35208876002 | ND |
| 2015-09-21 | 35208876003 | ND |
| 2015-09-21 | 35208876004 | ND |
| 2015-09-21 | 35208876005 | ND |
| 2015-09-21 | 35208876004 | ND |
| 2015-09-21 | 35208876003 | ND |
| 2015-09-21 | 35208876002 | ND |
| 2015-09-21 | 35208876001 | ND |
| 2015-09-29 | 35209950001 | ND |
| 2015-09-29 | 35209950002 | ND |
| 2015-09-29 | 35209950003 | ND |
| 2015-09-29 | 35209950004 | ND |
| 2015-09-29 | 35209950001 | ND |
| 2015-09-29 | 35209950002 | ND |
| 2015-09-29 | 35209950003 | ND |
| 2015-09-29 | 35209950004 | ND |
| 2016-03-01 | 35232777002 | ND |
| 2016-03-01 | 35232777001 | ND |
| 2016-03-01 | 35232777001 | ND |
| 2016-03-01 | 35232777002 | ND |
| 2017-06-19 | AE15004 | ND |
| 2017-06-19 | AE15000 | ND |
| 2017-06-19 | AE14992 | ND |
| 2017-06-19 | AE15004 | ND |
| 2017-06-19 | AE15000 | ND |
| 2017-06-19 | AE14992 | ND |
| 2018-05-02 | AE21727 | ND |
| 2018-05-02 | AE21703 | ND |
| 2018-05-02 | AE21703 | ND |
| 2018-05-02 | AE21727 | ND |
| 2018-06-06 | AE21812 | ND |
| 2018-06-06 | AE21821 | ND |
| 2018-06-06 | AE21818 | ND |
| 2018-06-06 | AE21815 | ND |
| 2018-06-06 | AE21812 | ND |
| 2018-06-06 | AE21809 | ND |
| 2018-06-06 | AE21821 | ND |
| 2018-06-06 | AE21818 | ND |
| 2018-06-06 | AE21815 | ND |
| 2018-06-06 | AE21809 | ND |
| 2018-06-25 | AE22000 | ND |
| 2018-06-25 | AE22000 | ND |
| 2018-06-25 | AE21996 | ND |
| 2018-06-25 | AE21992 | ND |
| 2018-06-25 | AE21988 | ND |
| 2018-06-25 | AE21984 | ND |
| 2018-06-25 | AE21984 | ND |
| 2018-06-25 | AE21988 | ND |
| 2018-06-25 | AE21992 | ND |
| 2018-06-25 | AE21996 | ND |
| 2018-09-10 | B1804157-001 | ND |
| 2018-09-10 | B1804157-001 | ND |
| 2019-07-24 | 35485209001 | ND |
| 2019-07-24 | B1903193-001 | ND |
| 2019-07-24 | 35485209001 | ND |
| 2019-07-24 | B1903193-001 | ND |