Chromium
What it is
A metal found naturally in rocks and soil and released by steel, pulp, and other industries. Water reports usually list “total chromium,” which includes chromium-3 and chromium-6.
Your body
According to EPA, long-term exposure above the federal limit has been linked to allergic dermatitis. Chromium-6 is the more toxic form and is under ongoing EPA review.
Your home
At drinking-water levels, chromium does not usually affect plumbing or appliances.
Federal standard: MCL 0.1 ppm (100 ppb) total chromium (EPA)
Treatment options that can reduce it
Maryland water systems that reported chromium
- City of CambridgeDorchester · 2025 data
- Easton UtilitiesTalbot · 2025 data
- Town of St. MichaelsTalbot · 2025 data
- Town of TrappeTalbot · 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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