Know Your Environment. Protect Your Health.

Silver

Cross Valley Water District

NOTE: Cross Valley Water District purchases water from City of Everett Public Works Department which is required to test for silver. Sample information shown below was taken by City of Everett Public Works Department.

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.

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND50ND
2020N/A00N/A
2021ND10ND
2022ND10ND
2023ND10ND

ppb = parts per billion

All test results

NOTE: Cross Valley Water District purchases water from City of Everett Public Works Department which is required to test for silver. Sample information shown below was taken by City of Everett Public Works Department.

Date Lab ID Result
2018-05-01ND
2019-05-08ND
2021-05-124137068ND
2022-08-034366207ND
2023-05-094546339ND