Silver
Hempstead
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.
55
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 | 9 | 0 | ND |
| 2015 | ND | 9 | 0 | ND |
| 2016 | ND | 12 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 10 | 0 | ND |
| 2019 | ND | 11 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-04 | 1402305-001-SEC | ND |
| 2014-07-01 | 1407057-001-SEC | ND |
| 2014-07-24 | 1407H51-001-SEC | ND |
| 2014-11-05 | 1411261-001-SEC | ND |
| 2014-11-05 | 1411261-003-SEC | ND |
| 2014-11-05 | 1411261-002-SEC | ND |
| 2014-11-18 | 1411C31-001-SEC | ND |
| 2014-12-02 | 1412141-001-SEC | ND |
| 2014-12-10 | 1412803-001-SEC | ND |
| 2015-03-04 | 1503256-001-SEC | ND |
| 2015-03-17 | 1503B81-005-SEC | ND |
| 2015-03-17 | 1503B81-001-SEC | ND |
| 2015-03-17 | 1503B81-003-SEC | ND |
| 2015-03-24 | 1503G72-001-SEC | ND |
| 2015-05-27 | 1505J26-001-SEC | ND |
| 2015-05-27 | 1505J26-004-SEC | ND |
| 2015-05-27 | 1505J26-002-SEC | ND |
| 2015-05-27 | 1505J26-003-SEC | ND |
| 2016-03-15 | 1603C44-002-SEC | ND |
| 2016-03-15 | 1603C44-004-SEC | ND |
| 2016-03-15 | 1603C44-001-SEC | ND |
| 2016-03-15 | 1603C44-003-SEC | ND |
| 2016-03-29 | 1603N29-002-SEC | ND |
| 2016-03-29 | 1603N29-001-SEC | ND |
| 2016-05-03 | 1605155-004-SEC | ND |
| 2016-05-03 | 1605157-001-SEC | ND |
| 2016-05-03 | 1605155-002-SEC | ND |
| 2016-05-03 | 1605155-003-SEC | ND |
| 2016-05-03 | 1605155-001-SEC | ND |
| 2016-05-03 | 1605155-005-SEC | ND |
| 2017-05-09 | 7018134002-SEC | ND |
| 2017-05-09 | 7018134004-SEC | ND |
| 2017-05-09 | 7018134003-SEC | ND |
| 2017-05-09 | 7018134001-SEC | ND |
| 2018-03-30 | 7046726001-SEC | ND |
| 2018-05-30 | 7053116002-SEC | ND |
| 2018-05-30 | 7053116006-SEC | ND |
| 2018-05-30 | 7053116004-SEC | ND |
| 2018-05-30 | 7053116005-SEC | ND |
| 2018-05-30 | 7053116003-SEC | ND |
| 2018-06-05 | 7053757002-SEC | ND |
| 2018-06-05 | 7053757005-SEC | ND |
| 2018-06-05 | 7053757003-SEC | ND |
| 2018-06-05 | 7053757001-SEC | ND |
| 2019-01-29 | 7077827001-SEC | ND |
| 2019-01-29 | 7077827002-SEC | ND |
| 2019-03-12 | 7082052002-SEC | ND |
| 2019-03-12 | 7082052001-SEC | ND |
| 2019-03-12 | 7082052003-SEC | ND |
| 2019-03-19 | 7082762001-SEC | ND |
| 2019-03-27 | 7083593001-SEC | ND |
| 2019-04-16 | 7085976004-SEC | ND |
| 2019-07-11 | 7097222001-SEC | ND |
| 2019-12-24 | 70116371001-SEC | ND |
| 2019-12-27 | 70116632001-SEC | ND |