Maine County Water Quality Reports
Water quality reports for all counties in Maine. Browse by county to see safety scores, violations, and ZIP code data.
Browse water quality data by county in Maine. Each county page lists all ZIP codes with safety scores and EPA violation data.
Androscoggin County, ME: 24 Health Violations — 54/100
2026 report: Androscoggin County, ME scores 54/100 (Grade D). 25 ZIP codes analyzed. 108 EPA violations found. Free report with contaminant data and fil...
Aroostook County, ME: 21 Health Violations — 55/100 (2026)
2026 report: Aroostook County, ME scores 55/100 (Grade C). 41 ZIP codes analyzed. 108 EPA violations found. Free report with contaminant data and filter...
Cumberland County, ME: Lead Above EPA Limits — 56/100 (2026)
2026 report: Cumberland County, ME scores 56/100 (Grade C). 45 ZIP codes analyzed. 277 EPA violations found. Lead above EPA limits. Free report with con...
Franklin County, ME: 4 Health Violations — 57/100 (2026)
2026 report: Franklin County, ME scores 57/100 (Grade C). 20 ZIP codes analyzed. 31 EPA violations found. Free report with contaminant data and filter p...
Hancock County, ME: Lead Above EPA Limits — 52/100 (2026)
2026 report: Hancock County, ME scores 52/100 (Grade D). 47 ZIP codes analyzed. 222 EPA violations found. Lead above EPA limits. Free report with contam...
Kennebec County, ME: 25 Health Violations — 54/100 (2026)
2026 report: Kennebec County, ME scores 54/100 (Grade D). 41 ZIP codes analyzed. 110 EPA violations found. Free report with contaminant data and filter ...
Knox County, ME: 20 Health Violations — 70/100 (2026)
2026 report: Knox County, ME scores 70/100 (Grade B). 18 ZIP codes analyzed. 46 EPA violations found. Free report with contaminant data and filter picks.
Lincoln County, ME: PFAS Found in Water — 51/100 (2026)
2026 report: Lincoln County, ME scores 51/100 (Grade D). 23 ZIP codes analyzed. 39 EPA violations found. PFAS detected. Free report with contaminant dat...
Oxford County, ME: 3 Health Violations — 55/100 (2026)
2026 report: Oxford County, ME scores 55/100 (Grade C). 29 ZIP codes analyzed. 52 EPA violations found. Free report with contaminant data and filter picks.
Penobscot County, ME: 17 Health Violations — 56/100 (2026)
2026 report: Penobscot County, ME scores 56/100 (Grade C). 45 ZIP codes analyzed. 132 EPA violations found. Free report with contaminant data and filter...
Piscataquis County, ME: 11 Health Violations — 51/100 (2026)
2026 report: Piscataquis County, ME scores 51/100 (Grade D). 13 ZIP codes analyzed. 34 EPA violations found. Free report with contaminant data and filte...
Sagadahoc County, ME: 32 Violations — 74/100 (2026)
2026 report: Sagadahoc County, ME scores 74/100 (Grade B). 8 ZIP codes analyzed. 32 EPA violations found. Free report with contaminant data and filter p...
Somerset County, ME: 8 Health Violations — 57/100 (2026)
2026 report: Somerset County, ME scores 57/100 (Grade C). 24 ZIP codes analyzed. 49 EPA violations found. Free report with contaminant data and filter p...
Waldo County, ME: 18 Health Violations — 66/100 (2026)
2026 report: Waldo County, ME scores 66/100 (Grade C). 20 ZIP codes analyzed. 61 EPA violations found. Free report with contaminant data and filter picks.
Washington County, ME: 16 Health Violations — 66/100 (2026)
2026 report: Washington County, ME scores 66/100 (Grade C). 36 ZIP codes analyzed. 65 EPA violations found. Free report with contaminant data and filter...
York County, ME: 7 Health Violations — 53/100 (2026)
2026 report: York County, ME scores 53/100 (Grade D). 50 ZIP codes analyzed. 74 EPA violations found. Free report with contaminant data and filter picks.
Get safety alerts for Maine
Free updates when EPA data changes for this area. No spam.
Unsubscribe anytime. Privacy Policy.