Know Your Environment. Protect Your Health.

Asbestos

Hidden Valley Lake Community Services District

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.

 

4

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
2019N/A00N/A
2020N/A00N/A
2021ND10ND
2022ND30ND
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
2021-04-02CA1710015_DST_008-202104020920ND
2022-06-08CA1710015_004_004-202206080806ND
2022-10-26CA1710015_003_003-202210260905ND
2022-12-07CA1710015_003_003-202212070800ND