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EWG's Tap Water Database — 2019 UPDATE

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Silver

Cal-am Water Company - Duarte

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND220ND
2014ND80ND
2015ND70ND
2016ND200ND
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-09-129590-007-1330ND
2013-09-129590-003-1340ND
2013-09-129590-008-1425ND
2013-09-129590-010-1450ND
2013-09-129590-002-1440ND
2013-09-129590-004-1415ND
2013-09-129590-009-1355ND
2013-09-181225-009-1025ND
2013-09-181225-007-0950ND
2013-09-181225-008-1105ND
2013-09-181225-004-1045ND
2013-09-181225-010-1150ND
2013-09-181225-003-1010ND
2013-09-181225-002-1130ND
2013-09-181225-019-0850ND
2013-12-049588-008-1140ND
2013-12-049588-004-1130ND
2013-12-049588-003-1055ND
2013-12-049588-007-1040ND
2013-12-049588-009-1105ND
2013-12-049588-010-1220ND
2013-12-049588-002-1210ND
2014-06-231225-007-1240ND
2014-06-231225-002-1300ND
2014-06-231225-003-1110ND
2014-06-231225-008-1235ND
2014-06-231225-009-1135ND
2014-06-231225-010-1330ND
2014-06-231225-019-1005ND
2014-12-039588-019-1020ND
2015-09-281225-003-1050ND
2015-09-281225-007-1200ND
2015-09-281225-008-1330ND
2015-09-281225-010-0945ND
2015-09-281225-009-1345ND
2015-10-141225-002-1205ND
2015-10-141225-019-0945ND
2016-06-201225-008-1145ND
2016-06-201225-019-1115ND
2016-06-201225-010-1135ND
2016-07-201225-007-0930ND
2016-07-201225-002-1110ND
2016-07-201225-003-1000ND
2016-07-201225-009-1030ND
2016-08-109590-019-1125ND
2016-08-109590-008-1030ND
2016-08-109590-007-1045ND
2016-08-109590-010-1015ND
2016-08-119590-009-1150ND
2016-08-119590-003-1205ND
2016-08-119590-002-1105ND
2016-09-079588-007-1245ND
2016-09-079588-003-1305ND
2016-09-079588-008-1345ND
2016-09-079588-010-1315ND
2016-09-079588-002-1330ND
2016-09-079588-009-1400ND