Silver

Pine Cove 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.

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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
2014	ND	4	ND
2015	N/A	0	N/A
2016	ND	16	ND
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	16	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-04-17	4790-024-0845	ND
2014-04-17	4790-023-0850	ND
2014-04-17	4790-022-0820	ND
2014-04-17	4790-021-0845	ND
2016-04-20	4790-016-1320	ND
2016-04-20	4790-024-1500	ND
2016-04-20	4790-023-1500	ND
2016-04-20	4790-022-1445	ND
2016-04-20	4790-021-1445	ND
2016-04-20	4790-018-1425	ND
2016-04-20	4790-017-1415	ND
2016-04-20	4790-002-1315	ND
2016-04-20	4790-014-1330	ND
2016-04-20	4790-011-1325	ND
2016-04-20	4790-010-1510	ND
2016-04-20	4790-003-1520	ND
2016-04-20	4790-004-1520	ND
2016-04-20	4790-008-1435	ND
2016-04-20	4790-005-1435	ND
2016-04-20	4790-006-1445	ND
2019-06-19	4790-011-1445	ND
2019-06-19	4790-002-1400	ND
2019-06-19	4790-003-1515	ND
2019-06-19	4790-004-1525	ND
2019-06-19	4790-017-1550	ND
2019-06-19	4790-016-1530	ND
2019-06-19	4790-014-1500	ND
2019-06-20	4790-018-0815	ND
2019-06-20	4790-021-0925	ND
2019-06-20	4790-005-0750	ND
2019-06-20	4790-022-0935	ND
2019-06-20	4790-006-0840	ND
2019-06-20	4790-023-1000	ND
2019-06-20	4790-024-0945	ND
2019-06-20	4790-008-0800	ND
2019-06-20	4790-010-1015	ND