Silver
City of Porterville
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 | 32 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 32 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-03-24 | 1653-021-1130 | ND |
2014-03-24 | 1653-005-1415 | ND |
2014-03-24 | 1653-008-1335 | ND |
2014-03-24 | 1653-020-1010 | ND |
2014-03-24 | 1653-019-1235 | ND |
2014-03-24 | 1653-033-0945 | ND |
2014-03-24 | 1653-018-1400 | ND |
2014-03-24 | 1653-056-1105 | ND |
2014-03-24 | 1653-013-1305 | ND |
2014-03-24 | 1653-039-1030 | ND |
2014-03-27 | 1653-022-1125 | ND |
2014-03-27 | 1653-049-1005 | ND |
2014-03-27 | 1653-079-1225 | ND |
2014-03-27 | 1653-082-1325 | ND |
2014-03-27 | 1653-086-1255 | ND |
2014-03-27 | 1653-088-1055 | ND |
2014-03-27 | 1653-003-1350 | ND |
2014-05-13 | 1653-014-1210 | ND |
2014-05-13 | 1653-026-1255 | ND |
2014-05-13 | 1653-037-1330 | ND |
2014-05-13 | 1653-090-1000 | ND |
2014-05-13 | 1653-092-1055 | ND |
2014-05-13 | 1653-096-1028 | ND |
2014-05-14 | 1653-024-1237 | ND |
2014-05-14 | 1653-025-0958 | ND |
2014-05-14 | 1653-032-1339 | ND |
2014-05-14 | 1653-054-0926 | ND |
2014-05-14 | 1653-010-1033 | ND |
2014-05-15 | 1653-023-0935 | ND |
2014-05-15 | 1653-040-1315 | ND |
2014-05-15 | 1653-009-1205 | ND |
2014-05-15 | 1653-006-1100 | ND |
2015-12-09 | 1653-100-0915 | ND |
2016-03-11 | 1653-098-0916 | ND |
2017-03-15 | 1653-003-1426 | ND |
2017-03-15 | 1653-039-0851 | ND |
2017-03-15 | 1653-022-1344 | ND |
2017-03-15 | 1653-049-1034 | ND |
2017-03-15 | 1653-021-0943 | ND |
2017-03-15 | 1653-020-0827 | ND |
2017-03-15 | 1653-019-0920 | ND |
2017-03-15 | 1653-082-1327 | ND |
2017-03-15 | 1653-086-1158 | ND |
2017-03-15 | 1653-008-1449 | ND |
2017-03-15 | 1653-096-1009 | ND |
2017-03-15 | 1653-005-1404 | ND |
2017-03-16 | 1653-018-1154 | ND |
2017-03-16 | 1653-013-1225 | ND |
2017-03-16 | 1653-100-1454 | ND |
2017-03-16 | 1653-024-1020 | ND |
2017-03-16 | 1653-025-1059 | ND |
2017-03-16 | 1653-033-1413 | ND |
2017-03-16 | 1653-056-1341 | ND |
2017-03-16 | 1653-079-1303 | ND |
2017-03-16 | 1653-088-0938 | ND |
2017-05-10 | 1653-026-0841 | ND |
2017-05-10 | 1653-032-1136 | ND |
2017-05-10 | 1653-023-1027 | ND |
2017-05-10 | 1653-054-1446 | ND |
2017-05-10 | 1653-014-0958 | ND |
2017-05-10 | 1653-090-1103 | ND |
2017-05-10 | 1653-010-1204 | ND |
2017-05-10 | 1653-009-0926 | ND |
2017-05-10 | 1653-092-0859 | ND |
2017-05-10 | 1653-006-1345 | ND |
2017-05-11 | 1653-040-1257 | ND |
2019-02-28 | 1653-098-1044 | ND |