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EWG's Tap Water Database — 2019 UPDATE

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Silver

City of San Diego

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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND110ND
2014ND120ND
2015ND120ND
2016ND110ND
2017ND120ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-069437-001-0000ND
2012-02-069437-006-0000ND
2012-02-069437-010-0000ND
2012-05-079437-001-0000ND
2012-05-079437-006-0000ND
2012-05-079437-010-0000ND
2012-08-069437-001-0000ND
2012-08-079437-006-0000ND
2012-08-079437-010-0000ND
2012-11-289437-010-0000ND
2013-02-049437-010-0000ND
2013-02-049437-001-0000ND
2013-05-069437-010-0000ND
2013-05-069437-001-0000ND
2013-05-299437-006-0000ND
2013-08-059437-001-0000ND
2013-08-059437-010-0000ND
2013-08-059437-006-0000ND
2013-11-049437-010-0000ND
2013-11-049437-001-0000ND
2013-11-049437-006-0000ND
2014-02-039437-001-0000ND
2014-02-039437-006-0000ND
2014-02-039437-010-0000ND
2014-05-059437-006-0000ND
2014-05-059437-001-0000ND
2014-05-059437-010-0000ND
2014-08-049437-001-0000ND
2014-08-049437-006-0000ND
2014-08-049437-010-0000ND
2014-11-039437-001-0000ND
2014-11-039437-006-0000ND
2014-11-039437-010-0000ND
2015-02-029437-010-0000ND
2015-02-029437-006-0000ND
2015-02-029437-001-0000ND
2015-05-049437-001-0000ND
2015-05-049437-006-0000ND
2015-05-049437-010-0000ND
2015-08-039437-001-0000ND
2015-08-039437-006-0000ND
2015-08-039437-010-0000ND
2015-11-029437-010-0000ND
2015-11-029437-001-0000ND
2015-11-029437-006-0000ND
2016-02-019437-010-0000ND
2016-02-019437-001-0000ND
2016-02-019437-006-0000ND
2016-05-029437-010-0000ND
2016-05-029437-001-0000ND
2016-08-019437-010-0000ND
2016-08-019437-001-0000ND
2016-08-019437-006-0000ND
2016-11-079437-001-0000ND
2016-11-079437-006-0000ND
2016-11-079437-010-0000ND
2017-02-069437-006-0000ND
2017-02-069437-001-0000ND
2017-02-229437-010-0000ND
2017-05-019437-001-0000ND
2017-05-019437-010-0000ND
2017-06-059437-006-0000ND
2017-08-079437-001-0000ND
2017-08-079437-006-0000ND
2017-08-079437-010-0000ND
2017-11-069437-010-0000ND
2017-11-069437-001-0000ND
2017-11-069437-006-0000ND