Water Quality: Southwest Harbor, ME
1 water system • 2,480 people served
Multiple Health ViolationsWater Quality Summary
Southwest Harbor is served by 1 public water system with a combined service population of 2,480 people, and has 41 EPA Safe Drinking Water Act violations on record. Critically, 7 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Southwest Harbor's violation count is roughly in line with the national average for Maine. Contaminants associated with violations include TTHM.
Contaminants Found
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving Southwest Harbor
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| SOUTHWEST HARBOR WATER & SEWER DISTRICT | ME0091490 | Surface Water | 2,480 | 41 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Maine
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.