Silver

Apple Valley Ranchos Water Company

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	6	ND
2016	ND	6	ND
2017	ND	6	ND
2018	ND	6	ND
2019	ND	5	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-05-29	4790-033-0900	ND
2014-05-29	4790-032-0850	ND
2014-05-29	4790-014-1055	ND
2014-05-29	4790-011-0830	ND
2014-05-29	4790-009-0842	ND
2014-05-29	4790-002-0930	ND
2014-08-27	4790-016-0705	ND
2015-06-25	4790-008-0845	ND
2015-06-25	4790-013-0718	ND
2015-06-25	4790-017-0825	ND
2015-06-25	4790-036-0702	ND
2015-06-25	4790-021-0710	ND
2015-06-25	4790-035-0648	ND
2016-05-11	4790-029-0632	ND
2016-05-11	4790-030-0925	ND
2016-05-11	4790-004-0750	ND
2016-05-11	4790-025-0645	ND
2016-05-11	4790-024-0828	ND
2016-06-02	3761-037-1045	ND
2017-05-24	4790-009-0930	ND
2017-05-24	4790-011-0940	ND
2017-05-24	4790-032-0945	ND
2017-05-24	4790-033-0825	ND
2017-05-24	4790-020-1015	ND
2017-05-24	4790-014-1230	ND
2018-05-09	4790-008-0720	ND
2018-05-09	4790-021-0925	ND
2018-05-09	4790-035-0625	ND
2018-05-09	4790-036-0912	ND
2018-05-09	4790-017-0700	ND
2018-05-09	4790-013-0935	ND
2019-05-22	4790-004-0905	ND
2019-05-22	4790-030-1050	ND
2019-05-22	4790-029-1020	ND
2019-05-22	4790-024-0952	ND
2019-05-22	4790-025-1040	ND