Asbestos
What it is
Mineral fibers that can enter water from aging asbestos-cement water mains or natural deposits. Measured in million fibers per liter (MFL).
Your body
According to EPA, long-term exposure above the federal limit has been linked to an increased risk of developing benign intestinal polyps.
Your home
Fibers in water indicate wear in asbestos-cement water mains. They do not affect household plumbing.
Federal standard: MCL 7 million fibers per liter (EPA)
Treatment options that can reduce it
Research & sources (2)
Maryland water systems that reported asbestos
- City of SalisburyWicomico · 2025 data
The information on this site is for general education only and is not medical advice. Talk with a qualified health professional about health concerns. Water treatment equipment performance depends on the system, its certification, and proper maintenance.

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