Water quality
Turbidity (cloudiness)
What it is
Turbidity measures how cloudy water is, from suspended particles like silt and clay. Water systems monitor it to show how well their filtration works.
Your body
Turbidity itself has no health effects, but according to EPA, it can interfere with disinfection and give germs a place to grow.
Your home
Sediment that causes cloudy water can clog faucet aerators, valves, and appliance inlets.
Federal standard: Treatment technique (EPA)
Treatment options that can reduce it
Research & sources (2)
Maryland water systems that reported turbidity
- Baltimore City Department of Public WorksBaltimore City (also serves most of Baltimore County) · 2025 data
- City of FrederickFrederick · 2025 data
- Harford County Department of Public WorksHarford · 2025 data
- Howard County Department of Public WorksHoward · 2025 data
- WSSC WaterMontgomery and Prince George's · 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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