Maryland Tap Water Quality: Is It Safe to Drink?
2026 EPA water quality data for 0 community water systems serving residents in Maryland. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.
Maryland draws drinking water from the Potomac River, Susquehanna watershed reservoirs, and Coastal Plain aquifers. Lead from older plumbing is a key concern in Baltimore, which has been replacing lead service lines. Agricultural nutrient runoff on the Eastern Shore contributes to nitrate levels in shallow groundwater.
Find Your Water System in Maryland
Enter your ZIP code to see EPA violations, lead test results, PFAS data, and a safety grade for your water.
📊 Data from EPA’s SDWIS
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🔄 Updated quarterly
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🏛️ 0+ water systems in Maryland