PORTLAND WATER DISTRICT-GREATER

PORTLAND, ME · ~135,068 people served

Check your exact address → PORTLAND overview

100

Excellent

PurityRadar safety score

PWSID

ME0091300

State

Maine

City

PORTLAND

Population served

135,068

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2023. Official EPA record →

Monitoring & reporting · EPA contaminant 1011 began Oct 2022 Resolved

Monitoring & reporting · Bromate began Oct 2022 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2022 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2022 Resolved

Monitoring & reporting · EPA contaminant 1011 began Apr 2021 Resolved

Monitoring & reporting · Bromate began Apr 2021 Resolved

Recent enforcement actions

State action · SIF Jun 2023
State action · SOX Mar 2023
State action · SFJ Feb 2023
State action · SFJ Feb 2023
State action · SIE Oct 2022
State action · SFJ Oct 2022
State action · SOX Sep 2022
State action · SOX Oct 2021

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

2 stations · latest Jul 2023

0.08 · max 0.25 mg/L · 3

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system ME0091300 — 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.