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Water system · PWSID ME0091490

SOUTHWEST HARBOR WATER & SEWER DISTRICT

SOUTHWEST HARBOR, ME · ~2,480 people served

Check your exact address → SOUTHWEST HARBOR overview
100
Excellent
PurityRadar safety score

PWSID

ME0091490

State

Maine

City

SOUTHWEST HARBOR

Population served

2,480

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

88

Violations on record

1

Unaddressed

60

Health-based

204

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2024. Official EPA record →

Other · EPA contaminant 7500 began Oct 2023 Unaddressed
Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2021 Resolved
Other · EPA contaminant 7500 began May 2020 Resolved
Other · EPA contaminant 7500 began Apr 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2019 Resolved

Recent enforcement actions

  • State action · SFJ Feb 2024
  • State action · SOX Apr 2023
  • State action · SFJ Mar 2023
  • State action · SFJ Oct 2022
  • State action · SIE Oct 2022
  • State action · SOX Sep 2022
  • State action · SOX May 2022
  • State action · SFJ Mar 2022

This profile is built from EPA public records for system ME0091490 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.