Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Silver

Water District 1 of Johnson County

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND70ND
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-03-06576121WSND
2012-03-06576120WSND
2012-05-22MAY2012-IOC-TP2ND
2012-05-22MAY2012-IOC-TP3ND
2012-05-29579491WSND
2012-05-30MAY2012-IOC-TP1ND
2013-03-05592968WSND
2013-03-05592969WSND
2013-05-01MAY2013-IOC-TP3ND
2013-05-01MAY2013-IOC-TP2ND
2013-05-01MAY2013-IOC-TP1ND
2013-05-14596073WSND
2013-07-08JUL2013-IOC-TP1ND
2014-03-0470260ND
2014-03-0470247ND
2014-05-13113433ND
2015-05-04322586ND
2015-05-04322585ND
2015-05-04322584ND
2016-05-17548023ND
2016-05-17548022ND
2016-06-20566734ND
2017-02-14708552ND
2017-02-14708551ND
2017-02-14708550ND