Know Your Environment. Protect Your Health.

Asbestos

St Charles Water District 1 East Bank

Asbestos is a mineral fiber introduced into water by the dissolution of asbestos-containing minerals and from decay of asbestos cement in water mains. Asbestos causes cancer when ingested or inhaled.

 

21

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
2019ND40ND
2020ND40ND
2021ND50ND
2022ND40ND
2023ND40ND

MFL = million fibers per liter

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 MFL

The legal limit for asbestos, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

MFL = million fibers per liter

All test results

Date Lab ID Result
2019-01-2235483799002ND
2019-01-2235483799001ND
2019-01-2235483799002ND
2019-01-2235483799001ND
2020-03-0535536156001ND
2020-03-0535536156002ND
2020-03-0535536156003ND
2020-03-0535536156004ND
2021-01-2835608550002ND
2021-01-2835608550004ND
2021-01-2835608550003ND
2021-01-2835608550001ND
2021-10-2535674116001ND
2022-02-0235695493001ND
2022-02-0235695493002ND
2022-02-0235695495001ND
2022-02-0235695495002ND
2023-03-20146501ND
2023-03-20146502ND
2023-03-2035788999001ND
2023-03-2035788999002ND