Silver
Utilities Inc. - North Park Water Supply
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.
26
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 | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 10 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 12 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-19 | AD89203 | ND |
| 2014-02-19 | AD89203 | ND |
| 2016-05-17 | AE06354 | ND |
| 2016-05-17 | AE06350 | ND |
| 2016-05-17 | AE06366 | ND |
| 2016-05-17 | AE06362 | ND |
| 2016-05-17 | AE06358 | ND |
| 2016-05-17 | AE06350 | ND |
| 2016-05-17 | AE06354 | ND |
| 2016-05-17 | AE06358 | ND |
| 2016-05-17 | AE06362 | ND |
| 2016-05-17 | AE06366 | ND |
| 2017-01-23 | AE12899 | ND |
| 2017-01-23 | AE12899 | ND |
| 2019-02-26 | B1900784-001 | ND |
| 2019-02-26 | B1900784-005 | ND |
| 2019-02-26 | B1900784-004 | ND |
| 2019-02-26 | B1900784-003 | ND |
| 2019-02-26 | B1900784-002 | ND |
| 2019-02-26 | B1900784-001 | ND |
| 2019-02-26 | B1900784-005 | ND |
| 2019-02-26 | B1900784-004 | ND |
| 2019-02-26 | B1900784-003 | ND |
| 2019-02-26 | B1900784-002 | ND |
| 2019-10-15 | B1904643-001 | ND |
| 2019-10-15 | B1904643-001 | ND |