Maine Water Quality
Drinking water data for all 16 counties.
Avg Water Score
99.3
State Grade
A
Counties with Data
16
of 16 total
All Maine Counties
| County | Water Score |
|---|---|
| Sagadahoc County | 100.0 |
| Cumberland County | 99.9 |
| Kennebec County | 99.9 |
| Penobscot County | 99.9 |
| York County | 99.9 |
| Androscoggin County | 99.8 |
| Lincoln County | 99.8 |
| Oxford County | 99.8 |
| Knox County | 99.4 |
| Somerset County | 99.2 |
| Aroostook County | 99.1 |
| Franklin County | 98.8 |
| Piscataquis County | 98.7 |
| Waldo County | 98.5 |
| Hancock County | 98.0 |
| Washington County | 98.0 |
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Data Source
Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.
Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.
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