Free tap water grades for 1,100+ water systems & 10,000+ ZIP codesFree tap water grades for 10,000+ ZIP codes Official EPA compliance records · Independent ratings

County Water Quality Report

Baltimore County, Maryland

1 public water system serving 593,000 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
64/100
Utilities rated 1
Population served 593,000
Most recent test 2024
🇪🇺 Would fail EU standards 1 of 1

Top water quality concerns in Baltimore County

  • PFAS contaminationin 1 of 1 utilities
  • Lead detected in source waterin 1 of 1 utilities
  • Chromium-6 detectedin 1 of 1 utilities

All utilities in Baltimore County

Click any utility for full grade card, contaminant data, and treatment plant contact info.

D
64/100

Baltimore Water Utilities

Baltimore · 593,000 residents

Top concern: PFAS contamination

View report →