Know Your Environment. Protect Your Health.

Asbestos

City of Shavano Park

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.

 

10

Samples

2

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20215.12 MFL32ND - 14.19 MFL
20225.92 MFL440.39 MFL - 20.69 MFL
20230.63 MFL32ND - 1.33 MFL

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
2021-02-23CAL2102149914.19 MFL
2021-03-16CAL210324541.18 MFL
2021-12-20CAL211211256ND
2022-03-09CAL220321471.60 MFL
2022-04-28CAL220439750.99 MFL
2022-09-27CAL220998630.39 MFL
2022-10-27CAL22101082320.69 MFL
2023-06-223299350ND
2023-08-2433650500.57 MFL
2023-10-1634231681.33 MFL