Silver
French Settlement Water Company-justin Heights
NOTE: French Settlement Water Company-justin Heights purchases water from Ward II Water District which is required to test for silver. Sample information shown below was taken by 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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 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
NOTE: French Settlement Water Company-justin Heights purchases water from Ward II Water District which is required to test for silver. Sample information shown below was taken by Ward II Water District.
| 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 |