Know Your Environment. Protect Your Health.

Silver

North Castle Water District #2

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-24AU15715-INSND
2019-08-05AV16473-INSND
2020-02-25AW03849-INSND
2020-02-25AW03859-INSND
2020-07-21AW13840-INSND
2020-07-29AW14500-INSND
2021-03-02AX04048-INSND
2021-03-03AX04220-INSND
2021-07-06AX13095-INSND
2021-08-04AX15708-INSND
2022-03-01AY03626-INSND
2022-03-01AY03624-INSND
2022-07-19AY12488-INSND
2022-07-21AY12752-INSND
2023-03-21AZ05021-INSND
2023-03-21AZ05013-INSND
2023-07-10AZ12340-INSND
2023-08-28AZ15886-INSND