Metals
Aluminum
What it is
A common element in soil and rock. Small amounts can remain after some water treatment processes that use aluminum compounds to settle out particles.
Your body
EPA regulates aluminum only as a secondary (cosmetic) standard, based on color. ATSDR has more on its health effects at higher exposures.
Your home
At higher levels aluminum can cause water discoloration.
Federal standard: Secondary standard 50–200 ppb (EPA, non-enforceable)
Treatment options that can reduce it
Research & sources (2)
Maryland water systems that reported aluminum
- City of FrederickFrederick · 2025 data
- Howard County Department of Public WorksHoward · 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.
Find out what's in your water. It's free.
Book a free in-home water test, or call and talk to a real person in Easton.