Kennebunk, Kennebunkport & Wells Water District
EPA ID: ME0090760 · 35,663 people served · 8 ZIP codes
In the most recent EPA reporting cycle, Kennebunk, Kennebunkport & Wells Water District carried 4 violations still marked as unresolved — each remains active in the federal enforcement ledger while the utility continues operations for its service population of approximately 35,663 people across the area it supplies.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2021) to 1 (2022). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Kennebunk, Kennebunkport & Wells Water District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The Kennebunk, Kennebunkport & Wells Water District serves a community with a median household income of $100,533 and an estimated 57,305 residents across its service area. Approximately 66% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Kennebunk, Kennebunkport & Wells Water District'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.
About 1% of homes in York County, Maine rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Kennebunk, Kennebunkport & Wells Water District compares to EPA limits
What This Means For You
Total Coliform at 2 presence exceeds the EPA maximum of presence.
Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 2 mg/L exceeds the EPA maximum of mg/L.
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
KENNEBUNK, KENNEBUNKPORT & WELLS WD (EPA ID: ME0090760) is a community water system in Maine that serves approximately 35,663 people from surface water sources.
This system provides water to 8 ZIP codes across 8 communities.
Average Home Safety Score: D (44/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| January 1, 2024 | Stage 1 DBP Rule | Monitoring | Unresolved |
| January 1, 2024 | Combined Radium | Monitoring | Resolved |
| September 29, 2023 | Stage 1 DBP Rule | Monitoring | Resolved |
| September 27, 2023 | Total Coliform | Monitoring | Unresolved |
| August 25, 2023 | Total Coliform | Monitoring | Unresolved |
| July 1, 2023 | Surface Water Treatment Rule | Monitoring | Unresolved |
| January 1, 2023 | Barium | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Coliform | Microbiological | 2 | No |
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Barium | Inorganic | 1 | No |
| Combined Radium | Radionuclides | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
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: 6 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 2 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 03907 — Ogunquit
- 04005 — Biddeford
- 04006 — Biddeford Pool
- 04014 — Cape Porpoise
- 04043 — Kennebunk
- 04046 — Kennebunkport
- 04090 — Wells
- 04094 — West Kennebunk
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Kennebunk, Kennebunkport & Wells Water District (ME0090760) on EPA.gov.
Frequently Asked Questions
Is Kennebunk, Kennebunkport & Wells Water District water safe to drink?
Kennebunk, Kennebunkport & Wells Water District has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Kennebunk, Kennebunkport & Wells Water District serve?
Kennebunk, Kennebunkport & Wells Water District serves approximately 35,663 people across 8 ZIP codes in Maine.
Where does Kennebunk, Kennebunkport & Wells Water District get its water?
The primary water source is surface water.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from KENNEBUNK, KENNEBUNKPORT & WELLS WD Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: KENNEBUNK, KENNEBUNKPORT & WELLS WD Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
Maine DWP evaluated source under SWAP program. Assessment results available at town offices and public water systems.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment chemicals and what each one does
Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.
Treatment classification and chemical list sourced from KENNEBUNK, KENNEBUNKPORT & WELLS WD Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
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 →
No lead lines or GRR lines found. Many unknowns due to missing documentation. Maine State Plumbing code banned lead service pipes in 1926. Working through unknowns; may need to excavate to identify material. Service line material look-up tool available on website.
Lead Service Line Replacement Tracker
This water utility's lead service line (LSL) replacement program is tracked from public Consumer Confidence Report filings. Email signup notifies subscribers when the utility files an updated replacement plan or progress milestone.
KENNEBUNK, KENNEBUNKPORT & WELLS WD
ZipCheckup is not affiliated with this water utility. LSL replacement-program data is sourced from public CCR filings published by the utility. Subscription notifications are based on automated parsing of subsequent CCR releases.
Learn more about Lead and Copper Rule replacement requirements →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Notable events and violations
This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.
Federal compliance violations on record
These entries are taken verbatim from the utility's CCR violations section. EPA defines four broad violation categories: Maximum Contaminant Level (MCL), Treatment Technique (TT), Monitoring & Reporting (M&R), and Public Notification (PN).
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03 Violation - MONITORING, ROUTINE MINOR DIQUAT TREAT PT 1Date not published
Did not test for or failed to collect all necessary tests for Diquat at Treatment Point 1.
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03 Violation - MONITORING, ROUTINE MINOR DIQUAT TREAT PT 3Date not published
Did not test for or failed to collect all necessary tests for Diquat at Treatment Point 3.
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03 Violation - MONITORING, ROUTINE MINOR ENDOTHALL TREAT PT 1Date not published
Did not test for or failed to collect all necessary tests for Endothall at Treatment Point 1.
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03 Violation - MONITORING, ROUTINE MINOR ENDOTHALL TREAT PT 3Date not published
Did not test for or failed to collect all necessary tests for Endothall at Treatment Point 3.
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03 Violation - MONITORING, ROUTINE MINOR TOXAPHENE,CHLORADANE TREAT PT 1Date not published
Did not test for or failed to collect all necessary tests for Toxaphene/Chloradane at Treatment Point 1.
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71 Violation - CCR REPORT CONSUMER CONFIDENCE RULEDate not published
CCR distributed to customers on time but copy not delivered to Maine DWP by October 1st deadline. Corrected in November.
Violations record from KENNEBUNK, KENNEBUNKPORT & WELLS WD Consumer Confidence Report.
Notable events from the utility's CCR
These bullet entries are the utility's own narration of operational, regulatory, or infrastructure events during the reporting period.
- Level 1 Assessment conducted in 2024 due to coliform presence; 1 required, 1 completed, no corrective actions required.
- First utility in Maine granted 0.5 log credit for disinfection from Maine DHHS-DWP for Watershed Control Program.
- PFAS removal facility constructed using GAC and Ionic Resin for Kennebunk River wells.
- Samples collected in 2024 and early 2025 confirm no SOCs (diquat, endothall, toxaphene, chloradane) in water.
ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.
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
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
Kennebunk, Kennebunkport & Wells Water District (EPA ID: ME0090760) — request the latest Consumer Confidence Report or ask about specific contaminants.