Portland Water District-greater
EPA ID: ME0091300 · 135,068 people served · 22 ZIP codes
ZipCheckup's reading of EPA SDWIS for Portland Water District-greater (ME0091300): 6 EPA violations in the last five years. Looking at the EPA enforcement file for Portland Water District-greater, 6 violations appear in the five-year dataset, but none remain open - the utility has addressed each finding and is in current compliance, with no pending enforcement affecting the 135,068 people in its service area.
Data: EPA SDWIS
Service Area Map
Coverage area for Portland Water District-greater Source: EPA SDWIS service area boundaries.
Service area boundary - Grade C
Service Area Demographics
The Portland Water District-greater serves a community with a median household income of $90,682 and an estimated 235,885 residents across its service area. Approximately 68% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Portland Water District-greater's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Portland Water District-greater compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Contaminant 1011 at 2 mg/L exceeds the EPA maximum of mg/L.
Chlorite at 2 mg/L exceeds the EPA maximum of 1 mg/L. Anemia and nervous system effects in infants and children. Consider ferrous sulfate reduction filtration.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 15 detections recorded. 3 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Maine
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Portland Water District-greater (EPA ID: ME0091300) is a community water system in Maine that serves approximately 135,068 people from surface water sources.
This system provides water to 22 ZIP codes across 19 communities.
ZIP-Area Home Safety Context: C (62/100)
This is the average Home Safety Score for 14 of 22 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 6 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 1, 2022 | Contaminant 1011 | Non-health-based | Resolved |
| October 1, 2022 | Chlorite | Non-health-based | Resolved |
| April 1, 2022 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| April 1, 2022 | Total Trihalomethanes (TTHM) | Non-health-based | Resolved |
| April 1, 2021 | Contaminant 1011 | Non-health-based | Resolved |
| April 1, 2021 | Chlorite | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 1011 | Other Violation | 2 | No |
| Chlorite | Disinfection Byproducts | 2 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0019 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by ME or modeled from parcel and building-footprint data.
- 04017 - Chebeague Island
- 04019 - Cliff Island
- 04021 - Cumberland Center
- 04038 - Gorham
- 04050 - Long Island
- 04062 - Windham
- 04071 - Raymond
- 04074 - Scarborough
- 04084 - Standish
- 04085 - Steep Falls
- 04092 - Westbrook
- 04096 - Yarmouth
- 04097 - North Yarmouth
- 04101 - Portland
- 04102 - Portland
- 04103 - Portland
- 04105 - Falmouth
- 04106 - South Portland
- 04107 - Cape Elizabeth
- 04108 - Peaks Island
- 04109 - Portland
- 04110 - Cumberland Foreside
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Portland Water District-greater (ME0091300) on EPA.gov.
Frequently Asked Questions
Is Portland Water District-greater water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Portland Water District-greater; its 6 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Portland Water District-greater serve?
Portland Water District-greater serves approximately 135,068 people across 22 ZIP codes in Maine.
Where does Portland Water District-greater get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Portland Water District-greater (ME): 6 EPA Violations. https://zipcheckup.com/water-system/me0091300/
@misc{zipcheckup-water-system-me0091300,
author = {{ZipCheckup}},
title = {{Portland Water District-greater (ME): 6 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/me0091300/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Portland Water District-greater (EPA ID: ME0091300) - request the latest Consumer Confidence Report or ask about specific contaminants.