Silver

Marina Coast 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.

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
2014	ND	7	ND
2015	ND	7	ND
2016	ND	7	ND
2017	ND	7	ND
2018	ND	7	ND
2019	ND	7	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-07-08	9590-034-0828	ND
2014-07-08	9590-008-0741	ND
2014-07-08	9590-010-1041	ND
2014-07-08	9590-026-1000	ND
2014-07-08	9590-028-0900	ND
2014-07-08	9590-033-0930	ND
2014-07-22	9590-009-0745	ND
2015-07-07	9590-009-0805	ND
2015-07-07	9590-010-0745	ND
2015-07-07	9590-026-1020	ND
2015-07-07	9590-034-0900	ND
2015-07-07	9590-033-0930	ND
2015-07-07	9590-008-0830	ND
2015-07-07	9590-028-0950	ND
2016-07-12	9590-028-0945	ND
2016-07-12	9590-034-0835	ND
2016-07-12	9590-033-0915	ND
2016-07-12	9590-008-0810	ND
2016-07-12	9590-009-0750	ND
2016-07-12	9590-026-1025	ND
2016-08-22	9590-027-1247	ND
2017-07-18	9590-027-0955	ND
2017-07-18	9590-008-0847	ND
2017-07-18	9590-028-1040	ND
2017-07-18	9590-009-0812	ND
2017-07-18	9590-026-1145	ND
2017-07-18	9590-033-1115	ND
2017-07-18	9590-034-0920	ND
2018-07-10	9590-027-0925	ND
2018-07-10	9590-008-0810	ND
2018-07-10	9590-009-0835	ND
2018-07-10	9590-033-0900	ND
2018-07-10	9590-026-1035	ND
2018-07-10	9590-028-0945	ND
2018-11-27	9590-034-1100	ND
2019-07-30	9590-009-0950	ND
2019-07-30	9590-033-0740	ND
2019-07-30	9590-034-0630	ND
2019-07-30	9590-028-0705	ND
2019-07-30	9590-008-0900	ND
2019-07-30	9590-026-1020	ND
2019-07-30	9590-027-0815	ND