Silver

City of Loma Linda

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	ND	7	ND
2015	ND	7	ND
2016	ND	7	ND
2017	ND	7	ND
2018	ND	7	ND
2019	ND	13	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-05	3761-024-1020	ND
2014-03-04	3761-018-1430	ND
2014-04-01	3761-014-0900	ND
2014-04-01	3761-031-0945	ND
2014-04-01	3761-017-0925	ND
2014-04-02	3761-032-1015	ND
2014-04-02	3761-030-1440	ND
2015-04-01	3761-017-0810	ND
2015-04-01	3761-032-0825	ND
2015-04-01	3761-031-1020	ND
2015-04-01	3761-018-1100	ND
2015-04-01	3761-014-1000	ND
2015-04-01	3761-024-0900	ND
2015-04-07	3761-030-1320	ND
2016-04-05	3761-030-0710	ND
2016-04-05	3761-031-1020	ND
2016-04-05	3761-024-0750	ND
2016-04-05	3761-014-0940	ND
2016-04-05	3761-017-0645	ND
2016-04-05	3761-018-1050	ND
2016-06-09	3761-032-1030	ND
2017-04-04	3761-024-1050	ND
2017-04-04	3761-014-0935	ND
2017-04-04	3761-018-1035	ND
2017-04-04	3761-030-1000	ND
2017-04-05	3761-017-0850	ND
2017-04-05	3761-032-1000	ND
2017-04-05	3761-031-0920	ND
2018-04-02	3761-017-1030	ND
2018-04-03	3761-031-0650	ND
2018-04-03	3761-014-0700	ND
2018-04-03	3761-018-0740	ND
2018-04-03	3761-024-0805	ND
2018-04-03	3761-030-1400	ND
2018-04-04	3761-032-0740	ND
2019-04-02	3761-032-1500	ND
2019-04-02	3761-017-0950	ND
2019-04-02	3761-030-1200	ND
2019-04-02	3761-031-1440	ND
2019-04-03	3761-024-0900	ND
2019-04-03	3761-018-0815	ND
2019-05-01	3761-014-0810	ND
2019-08-01	3761-030-0950	ND
2019-08-01	3761-017-0750	ND
2019-08-01	3761-032-0820	ND
2019-08-01	3761-031-1410	ND
2019-08-01	3761-024-0910	ND
2019-08-01	3761-014-0730	ND