Know Your Environment. Protect Your Health.

Silver

City of Deridder Water System

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND80ND
2020N/A00N/A
2021N/A00N/A
2022ND40ND
2023N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2019-10-07B1904570-001ND
2019-10-07B1904570-002ND
2019-10-07B1904570-003ND
2019-10-07B1904570-004ND
2019-10-07B1904570-001ND
2019-10-07B1904570-002ND
2019-10-07B1904570-003ND
2019-10-07B1904570-004ND
2022-07-18B2203345-001ND
2022-07-18B2203345-002ND
2022-07-18B2203345-003ND
2022-07-18B2203345-004ND