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EWG's Tap Water Database — 2021 UPDATE

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Asbestos

Harris County Municipal Utility District 158

NOTE: Harris County Municipal Utility District 158 purchases water from City of Houston which is required to test for asbestos. Sample information shown below was taken by City of Houston.

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results

MFL = million fibers per liter

State and national drinking water standards and health guidelines

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

NOTE: Harris County Municipal Utility District 158 purchases water from City of Houston which is required to test for asbestos. Sample information shown below was taken by City of Houston.

Date Lab ID Result