Silver
Town of Hempstead Water Department
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.
130
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 | 35 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 26 | 0 | ND |
| 2017 | ND | 17 | 0 | ND |
| 2018 | ND | 22 | 0 | ND |
| 2019 | ND | 22 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-03 | 97973-SEC | ND |
| 2014-02-04 | 98005-SEC | ND |
| 2014-03-20 | 1403E39-006-SEC | ND |
| 2014-03-20 | 1403E39-004-SEC | ND |
| 2014-03-20 | 1403E39-003-SEC | ND |
| 2014-03-20 | 1403E39-009-SEC | ND |
| 2014-04-29 | 8539-04292014-SE | ND |
| 2014-04-29 | 98533-04292014-S | ND |
| 2014-04-29 | 98537-04292014-S | ND |
| 2014-04-29 | 98534-04292014-S | ND |
| 2014-04-29 | 98535-04292014-S | ND |
| 2014-04-29 | 98536-04292014-S | ND |
| 2014-04-29 | 98538-04292014-S | ND |
| 2014-06-16 | 098911-06162014- | ND |
| 2014-07-14 | 99136-07142014-S | ND |
| 2014-07-14 | 99138-07142014-S | ND |
| 2014-07-14 | 99137-07142014-S | ND |
| 2014-07-14 | 99139-07142014-S | ND |
| 2014-08-27 | 99387-08272014-S | ND |
| 2014-08-27 | 99390-08272014-S | ND |
| 2014-08-27 | 99388-08272014-S | ND |
| 2014-08-27 | 99393-08272014-S | ND |
| 2014-08-27 | 99391-08272014-S | ND |
| 2014-10-01 | 99733-SEC | ND |
| 2014-10-02 | 99750-SEC | ND |
| 2014-11-17 | 100000-SEC | ND |
| 2014-11-17 | 100002-SEC | ND |
| 2014-11-17 | 100001-11172014- | ND |
| 2014-11-17 | 99997-11172014-S | ND |
| 2014-12-01 | 100116-12012014- | ND |
| 2014-12-01 | 100120-SEC | ND |
| 2014-12-01 | 100117-12012014- | ND |
| 2014-12-01 | 100114-12012014- | ND |
| 2014-12-01 | 100115-12012014- | ND |
| 2014-12-04 | 100121-12012014- | ND |
| 2015-01-12 | 100350-01122015- | ND |
| 2015-01-12 | 100352-01122015- | ND |
| 2015-01-12 | 100351-01122015- | ND |
| 2015-01-12 | 100355-01122015- | ND |
| 2015-03-02 | 100546-03022015- | ND |
| 2015-03-02 | 100548-03022015- | ND |
| 2015-03-02 | 4100547-03022015 | ND |
| 2015-03-02 | 100549-03022015- | ND |
| 2016-02-04 | 1602447-002 SEC | ND |
| 2016-03-31 | 1603P15-001-SEC | ND |
| 2016-03-31 | 1603P15-004-SEC | ND |
| 2016-03-31 | 1603P15-003 | ND |
| 2016-03-31 | 1603P15-002-SEC | ND |
| 2016-04-04 | 1604218-004-SEC | ND |
| 2016-04-04 | 1604218-006-SEC | ND |
| 2016-04-04 | 1604218-002-SEC | ND |
| 2016-04-04 | 1604218-001-SEC | ND |
| 2016-04-04 | 1604218-003-SEC | ND |
| 2016-04-04 | 1604218-005-SEC | ND |
| 2016-04-25 | 1604M30-006-SEC | ND |
| 2016-04-25 | 1604M30-004-SEC | ND |
| 2016-04-25 | 1604M30-003-SEC | ND |
| 2016-04-25 | 1604M30-002-SEC | ND |
| 2016-04-25 | 1604M30-001-SEC | ND |
| 2016-04-25 | 1604M30-005-SEC | ND |
| 2016-05-19 | 1605I29-007-SEC | ND |
| 2016-05-19 | 1605I29-006-SEC | ND |
| 2016-06-03 | 1606334-002-SEC | ND |
| 2016-06-16 | 1606G41-007-SEC | ND |
| 2016-06-16 | 1606G41-006-SEC | ND |
| 2016-06-16 | 1606G41-003-SEC | ND |
| 2016-06-29 | 1606S43-003-SEC | ND |
| 2016-08-31 | 1608S39-003-SEC | ND |
| 2016-08-31 | 1608S39-005-SEC | ND |
| 2017-01-30 | 7010148003-SEC | ND |
| 2017-01-30 | 7010148004-SEC | ND |
| 2017-01-30 | 7010148002--SEC | ND |
| 2017-01-30 | 7010148007-SEC | ND |
| 2017-01-30 | 7010148001-SEC | ND |
| 2017-02-13 | 7011165005-SEC | ND |
| 2017-02-13 | 7011165007-SEC | ND |
| 2017-02-13 | 7011165006-SEC | ND |
| 2017-02-13 | 7011165008-SEC | ND |
| 2017-02-27 | 7012180006-SEC | ND |
| 2017-02-27 | 7012180005-SEC | ND |
| 2017-02-27 | 7012180009-SEC | ND |
| 2017-02-27 | 7012180003-SEC | ND |
| 2017-05-02 | 7017470003-SEC | ND |
| 2017-05-31 | 7019963005-SEC | ND |
| 2017-07-13 | 7024011003-SEC | ND |
| 2017-10-25 | 7034010003-SEC | ND |
| 2018-01-16 | 7040464002-SEC | ND |
| 2018-01-29 | 7041520003-SEC | ND |
| 2018-01-29 | 7041520004-SEC | ND |
| 2018-01-29 | 7041520010-SEC | ND |
| 2018-01-30 | 7041659002-SEC | ND |
| 2018-04-13 | 7048404001-SEC | ND |
| 2018-04-20 | 7049155003-SEC | ND |
| 2018-04-20 | 7049155005-SEC | ND |
| 2018-04-20 | 7049155002-SEC | ND |
| 2018-04-20 | 7049155001-SEC | ND |
| 2018-04-20 | 7049155004-SEC | ND |
| 2018-04-26 | 7049700003-SEC | ND |
| 2018-04-26 | 7049700004-SEC | ND |
| 2018-05-09 | 7051103001-SEC | ND |
| 2018-05-29 | 7052946009-SEC | ND |
| 2018-05-29 | 7052946006-SEC | ND |
| 2018-06-28 | 7056573001-SEC | ND |
| 2018-07-30 | 7059788006-SEC | ND |
| 2018-07-30 | 7059788001-SEC | ND |
| 2018-07-30 | 7059788008-SEC | ND |
| 2018-07-30 | 7059788004-SEC | ND |
| 2018-07-30 | 7059788007-SEC | ND |
| 2019-01-24 | 7077506005-SEC | ND |
| 2019-01-24 | 7077506009-SEC | ND |
| 2019-01-24 | 7077506007-SEC | ND |
| 2019-01-24 | 7077506004-SEC | ND |
| 2019-01-24 | 7077506003-SEC | ND |
| 2019-01-24 | 7077506006-SEC | ND |
| 2019-01-29 | 7077854001-SEC | ND |
| 2019-01-29 | 7077854005-SEC | ND |
| 2019-02-06 | 7078608003-SEC | ND |
| 2019-02-06 | 7078608007-SEC | ND |
| 2019-02-06 | 7078608005-SEC | ND |
| 2019-05-15 | 7089637001-SEC | ND |
| 2019-05-15 | 7089637006-SEC | ND |
| 2019-05-15 | 7089637003-SEC | ND |
| 2019-05-15 | 7089637002-SEC | ND |
| 2019-05-15 | 7089637005-SEC | ND |
| 2019-06-04 | 7091931001-SEC | ND |
| 2019-06-27 | 7095546005-SEC | ND |
| 2019-06-27 | 7095546004-SEC | ND |
| 2019-06-27 | 7095546002-SEC | ND |
| 2019-06-27 | 7095546003 | ND |
| 2019-08-16 | 70101758001-SEC | ND |