Know Your Environment. Protect Your Health.

Asbestos

Jefferson County Rural Water District 1

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.

 

8

Samples

1

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20192.24 MFL440.88 MFL - 3.16 MFL
2020N/A00N/A
2021N/A00N/A
20223.78 MFL43ND - 8.78 MFL
2023N/A00N/A

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
2019-04-292019-4-29 ASB 23.16 MFL
2019-04-292019-4-29 ASB 52.11 MFL
2019-04-292019-4-29 ASB 60.88 MFL
2019-04-292019-4-29 ASB 72.81 MFL
2022-02-282022-02-28 ASB 2ND
2022-02-282022-2-28 ASB 58.78 MFL
2022-02-282022-02-28 ASB 65.97 MFL
2022-02-282022-2-28 ASB 70.35 MFL