Know Your Environment. Protect Your Health.

Silver

City of Bellingham Water Division

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
2019ND10ND
2020N/A00N/A
20211.40 ppb111.40 ppb
2022ND10ND
2023ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-31ND
2019-05-07ND
2021-05-2742107731.40 ppb
2022-09-214366228ND
2023-08-154541693ND