Silver
Yucaipa Valley Water District
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 |
---|---|---|---|---|
2014 | ND | 11 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | ND | 10 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 7 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-16 | 3761-076-1220 | ND |
2014-02-03 | 3761-066-1355 | ND |
2014-02-03 | 3761-036-1341 | ND |
2014-03-07 | 3761-016-1215 | ND |
2014-04-04 | 3761-015-0925 | ND |
2014-05-20 | 3761-067-1151 | ND |
2014-06-09 | 3761-052-1015 | ND |
2014-09-03 | 3761-078-1305 | ND |
2014-09-03 | 3761-024-0730 | ND |
2014-09-03 | 3761-054-0755 | ND |
2014-09-26 | 3761-100-1200 | ND |
2015-04-21 | 3761-037-1019 | ND |
2015-12-09 | 3761-100-1153 | ND |
2015-12-09 | 3761-025-0930 | ND |
2016-06-22 | 3761-013-0945 | ND |
2016-09-21 | 3761-033-1130 | ND |
2016-09-21 | 3761-022-1415 | ND |
2016-09-21 | 3761-017-1300 | ND |
2016-09-21 | 3761-003-0915 | ND |
2016-09-21 | 3761-100-1240 | ND |
2016-11-29 | 3761-006-0832 | ND |
2017-01-25 | 3761-015-1410 | ND |
2017-03-02 | 3761-076-1015 | ND |
2017-03-02 | 3761-066-0950 | ND |
2017-03-02 | 3761-036-1035 | ND |
2017-03-10 | 3761-016-0700 | ND |
2017-04-12 | 3761-052-1120 | ND |
2017-07-11 | 3761-078-1115 | ND |
2017-07-11 | 3761-054-1445 | ND |
2017-07-13 | 3761-067-1125 | ND |
2017-09-26 | 3761-100-0900 | ND |
2018-10-22 | 3761-100-1255 | ND |
2018-11-14 | 3761-037-1130 | ND |
2019-07-17 | 3761-013-1110 | ND |
2019-07-18 | 3761-025-1045 | ND |
2019-09-17 | 3761-022-1506 | ND |
2019-09-17 | 3761-017-1440 | ND |
2019-09-17 | 3761-033-1415 | ND |
2019-10-16 | 3761-100-1225 | ND |
2019-11-05 | 3761-006-0910 | ND |