The public water system serving Kennebunk, Kennebunkport, and Wells in York County, Maine, draws from surface water sources to provide drinking water to more than 35,000 people. This system, identified as KENNEBUNK, KENNEBUNKPORT & WELLS WD (ME0090760), has undergone monitoring for per- and polyfluoroalkyl substances (PFAS), a group of man-made chemicals that can persist in the environment.
Consequences of Not Managing PFAS Over Time
PFAS persist in water without natural breakdown for years or decades
When PFAS are present in water without treatment, they remain stable and accumulate potentially to levels that may concern consumers. While this system’s public records show no PFAS above detection thresholds, untreated private sources might have different results. Long-term exposure impacts are a consideration for households evaluating treatment.
Potential subtle effects may be linked to chronic PFAS exposure
Scientific research is ongoing about the health effects of PFAS, focusing on long-term exposure through drinking water. Addressing PFAS proactively can be part of a precautionary approach households consider.
Interpreting Certified Laboratory PFAS Test Results
Detection limits set the lowest concentration reliably measured
Laboratories report PFAS concentrations with detection limits such as 0.004 micrograms per liter (µg/L) for PFOA and PFOS. Results below these limits indicate no detected PFAS but do not guarantee absolute absence.
Reporting levels differ from federal maximum contaminant levels (MCLs)
The federal MCLs for PFOA and PFOS are 4.0 nanograms per liter (ng/L) as of 2024. The Kennebunk area system has found no detections above reporting levels, which are near or below these MCLs.
Seasonal and Multi-Year PFAS Variation in System Records
Monitoring from November 2024 through August 2025 showed no detected PFAS
Sixteen samples taken in this period all recorded PFAS levels below detection thresholds, reflecting stable water quality during these months and supporting consistent treatment or source protection.
Results cover multiple PFAS compounds including PFOA, PFOS, PFHxS, and others
Each of these substances was sampled, and all were below their respective reporting limits, indicating a comprehensive assessment of PFAS presence over time.
How Autotrol PFAS Forever Chemicals Filter Addresses PFAS in Household Water
Designed to reduce PFAS from residential taps
This system ships ready to configure for home use and uses technology documented to remove PFAS compounds effectively, providing an additional layer of water quality management beyond municipal treatment.
Suitable for households assessing equipment options for PFAS
Choosing a treatment approach may include considering capacity, maintenance, and certification to ensure the system meets household water consumption and quality goals.
Differences Between Public System Monitoring and Private Well Testing
Public water system data represent treated community water, not individual homes
Records reflect water quality after processing at the community level and serve many connections, so they do not replace private well tests that measure on-site water conditions.
Private well owners should conduct certified laboratory testing for accurate PFAS status
Because individual well water may differ due to local geology or contamination sources, testing is the only way to know specific PFAS levels at a given home.
What To Avoid Concluding From Public Water PFAS Data in York County
Detecting no PFAS above reporting limits in public system data does not confirm your home water is free of PFAS
Individual water may vary; only direct testing of your water source provides definitive data.
Absence of PFAS detection in public water does not imply that all residential treatment is unnecessary
Households concerned about PFAS exposure or seeking additional treatment steps should evaluate treatment options like the Autotrol PFAS Forever Chemicals Filter based on their water testing results and preferences.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-08-21. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR5 monitoring (2023-2025) for KENNEBUNK, KENNEBUNKPORT & WELLS WD (ME0090760), ME: 160 results across 10 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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