Silver
City of Newport News
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-11-03 | HMFW_110314M | ND |
2014-12-01 | LHFW_120114M | ND |
2015-12-07 | 00220-NEWPORT NE | ND |
2015-12-07 | 00220-NEWPORT NE | ND |
2016-12-05 | HMFW_120516M | ND |
2016-12-06 | LHFW_120616M | ND |
2017-11-01 | HMFW_110117M | ND |
2017-11-01 | LHFW_110117M | ND |
2018-12-03 | HMFW_120318M | ND |
2018-12-03 | LHFW_120318M | ND |
2019-12-02 | HMFW-033028M | ND |
2019-12-02 | LHFW-033030M | ND |