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EWG's Tap Water Database — 2021 UPDATE

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Silver

City of Merced

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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60

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
2015N/A00N/A
2016ND200ND
2017ND10ND
2018N/A00N/A
2019ND190ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-095810-008-0832ND
2014-01-095810-020-0937ND
2014-01-095810-019-1109ND
2014-01-095810-022-1250ND
2014-01-095810-016-1350ND
2014-01-095810-023-0900ND
2014-01-095810-015-1430ND
2014-01-095810-041-0955ND
2014-01-095810-011-1445ND
2014-01-095810-042-1053ND
2014-01-095810-043-1031ND
2014-01-095810-005-0857ND
2014-01-095810-048-1409ND
2014-01-095810-004-0854ND
2014-01-095810-049-1140ND
2014-01-095810-054-1318ND
2014-01-105810-002-0950ND
2014-01-105810-003-0941ND
2014-01-105810-001-0944ND
2014-01-105810-021-0858ND
2016-05-101233-057-1600ND
2016-09-019590-001-1205ND
2016-09-019590-002-1400ND
2016-09-019590-003-1255ND
2016-09-019590-054-0846ND
2016-09-019590-004-1240ND
2016-09-019590-049-0945ND
2016-09-019590-005-1340ND
2016-09-019590-048-0910ND
2016-09-019590-043-1235ND
2016-09-019590-020-1120ND
2016-09-019590-011-0901ND
2016-09-019590-041-1020ND
2016-09-019590-015-0810ND
2016-09-019590-023-1430ND
2016-09-019590-016-1030ND
2016-09-019590-022-1335ND
2016-09-019590-019-1055ND
2016-09-019590-021-1450ND
2016-12-019590-042-0854ND
2017-03-099590-008-0840ND
2019-08-065810-042-0845ND
2019-08-065810-049-1030ND
2019-08-065810-048-0755ND
2019-08-065810-043-1000ND
2019-08-065810-016-0820ND
2019-08-065810-054-1100ND
2019-08-085810-019-0820ND
2019-08-085810-020-0915ND
2019-08-085810-021-0725ND
2019-08-085810-041-0855ND
2019-08-135810-022-0725ND
2019-08-135810-023-0855ND
2019-08-135810-015-0955ND
2019-08-135810-005-0850ND
2019-08-135810-004-0830ND
2019-08-135810-003-0747ND
2019-09-195810-001-1230ND
2019-10-035810-011-1220ND
2019-11-265810-008-0825ND