The latest EPA data for the Commonwealth Health Corporation water system serving MP County shows no detections above reporting levels for any measured PFAS compounds in 2025. This extensive federal survey examined samples for nine individual per- and polyfluoroalkyl substances, commonly called PFAS or 'forever chemicals,' and found all results below the federal thresholds set for 2024. While this data reflects the public water system, it does not provide specific measurements for any individual household’s water.
Which PFAS Compounds Are Covered by 2024 Federal Maximum Contaminant Levels?
The EPA now enforces federal maximum contaminant levels (MCLs) for several fluorinated chemicals, including PFOA, PFOS, PFHxS, PFNA, and HFPO-DA, all with thresholds ranging from 4.0 to 10 nanograms per liter (ng/L, also parts per trillion). The 2025 monitoring for MP's water system detected none of these substances above their respective reporting limits, and no results exceeded the established MCLs. Other detected substances like PFBS, PFHxA, PFPeA, PFBA, and PFHpA currently do not have federal MCLs but remain part of ongoing monitoring efforts.
Potential Regional Sources: Firefighting Foam, Textile Finishing, and Landfill Impact
PFAS originate from various activities, notably aqueous film-forming foams used in firefighting, manufacturing processes such as textile and carpet finishing, and leaching from landfills where PFAS-containing products may accumulate. The absence of detections in MP’s public water records suggests limited impact from these sources within the water supply system’s reach. However, localized or private sources beyond public supply lines cannot be ruled out without individual testing.
Comparing MP’s Water Record to Neighboring Counties Without Overinterpretation
While neighboring counties may show different PFAS monitoring results, direct comparisons require caution. Differences might stem from varying industrial histories, environmental conditions, or monitoring frequencies. MP’s current record showing no detections above reporting levels indicates a relatively low observed PFAS presence within its public supply. This does not imply that other areas with detections are necessarily less safe, nor does it guarantee uniformly low levels across all local water sources.
Home Water Uses Most Likely Affected by PFAS
PFAS compounds, being water soluble and persistent, can accumulate in water fixtures and appliances using water directly, such as refrigerators with built-in filtration, coffee makers, and ice machines. Bathing and washing involve contact but typically lead to less intake compared to drinking water. Knowing which points in your home water system may require filtration depends on the specific compounds of concern and their concentrations, which standard public water data do not specify for individual homes.
Differences Between UCMR5 and Earlier PFAS Monitoring Surveys
The current Unregulated Contaminant Monitoring Rule 5 (UCMR5) survey expands on previous iterations like UCMR3 by targeting a broader suite of PFAS compounds, including newly assessed chemicals such as HFPO-DA, and applying more sensitive detection limits. This shift enables more comprehensive tracking of 'forever chemicals' but also means that earlier data may not directly compare in scope or detection capability to recent surveys.
What You Should Not Conclude from This Area’s Data
The absence of PFAS detections above reporting levels in the Commonwealth Health Corporation system indicates compliance with federal monitoring standards but does not guarantee that all household water sources in MP are free from any PFAS presence. Individual water testing is necessary to determine specific levels in your home’s supply. For those seeking to reduce potential PFAS exposure through water treatment, the C-Series PFAS Forever Chemicals Filter ships ready to configure and is designed to specifically address these substances.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-08-04. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR5 monitoring (2023-2025) for Commonwealth Health Corporation (MP0000171), MP: 10 results across 10 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level