Silver

City of Anaheim

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.

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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	10	ND
2015	ND	6	ND
2016	ND	7	ND
2017	ND	10	ND
2018	ND	10	ND
2019	ND	6	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-04-01	4417-050-1025	ND
2014-04-01	4417-037-1125	ND
2014-04-01	4417-036-1150	ND
2014-04-01	4417-035-1205	ND
2014-07-01	4417-051-1055	ND
2014-07-01	4417-049-0940	ND
2014-07-01	4417-034-1015	ND
2014-07-02	4417-088-1110	ND
2014-07-02	4417-087-1040	ND
2014-07-02	4417-033-0925	ND
2015-03-03	4417-086-0850	ND
2015-04-13	4417-058-0745	ND
2015-04-27	4417-053-0835	ND
2015-04-27	4417-090-0905	ND
2015-07-14	4417-096-1120	ND
2015-10-05	4417-096-1230	ND
2016-01-11	4417-096-1010	ND
2016-04-05	4417-096-1120	ND
2016-04-11	4417-062-0945	ND
2016-04-11	4417-033-0855	ND
2016-04-18	4417-063-1120	ND
2016-07-07	4417-049-0950	ND
2016-07-11	4417-034-1120	ND
2017-01-03	4417-088-1220	ND
2017-01-30	4417-037-0940	ND
2017-04-10	4417-058-0930	ND
2017-04-10	4417-090-1050	ND
2017-04-11	4417-036-1015	ND
2017-04-11	4417-087-0920	ND
2017-04-11	4417-051-0840	ND
2017-04-11	4417-035-1050	ND
2017-06-26	4417-053-1020	ND
2017-07-10	4417-053-1120	ND
2018-01-11	4417-086-0820	ND
2018-07-10	4417-050-1030	ND
2018-07-23	4417-049-1005	ND
2018-07-23	4417-033-0900	ND
2018-07-25	4417-062-0910	ND
2018-08-22	4417-049-0950	ND
2018-08-22	4417-049-1000	ND
2018-08-22	4417-033-0930	ND
2018-08-22	4417-033-0920	ND
2018-09-06	4417-050-0900	ND
2019-03-19	4417-110-0910	ND
2019-04-09	4417-063-0955	ND
2019-04-10	4417-110-1310	ND
2019-04-10	4417-096-0955	ND
2019-08-06	4417-110-1215	ND
2019-10-08	4417-110-1320	ND