How the UCMR5 Survey Differs From UCMR3 in Compounds and Detection Levels
The latest federal Unregulated Contaminant Monitoring Rule (UCMR5) survey updates the range of PFAS — per- and polyfluoroalkyl substances, sometimes called 'forever chemicals' — measured in public water systems. Unlike UCMR3, which focused on six PFAS compounds, UCMR5 broadens this to include numerous additional fluorinated compounds. It also lowers detection thresholds to parts per trillion (nanograms per liter) levels, improving sensitivity. This means current data for Jackson County's public water supply reflects a wider and more precise monitoring scope than prior surveys.
Why Granular Carbon Beds and Ion-Exchange Resin Are Treated Differently for PFAS Removal
Strategies to reduce PFAS concentrations in water typically involve either granular activated carbon (GAC) filtration or ion-exchange resins. GAC works by adsorbing certain PFAS molecules onto a porous carbon surface. Ion-exchange resins, by contrast, swap PFAS ions in the water with less harmful ions on the resin. Both methods have proven effective for specific compounds but behave differently depending on which PFAS are present. Understanding these differences is important when selecting a system that aligns with the spectrum of PFAS detected in a water source.
A Homeowner’s Guide to Reading Jackson County’s PFAS Median and Range Data
The EPA’s UCMR5 data for the West Jackson County Utility District, which serves over 28,500 people, show zero detections of all tested PFAS compounds—including PFOA, PFOS, PFHxS, PFNA, HFPO-DA, PFBS, PFHxA, PFPeA, PFBA, and PFHpA—above their respective reporting levels. Medians and ranges represent the distribution of all sample results over the monitoring period. A median of zero means half the samples showed no detectable PFAS, and zero range above reporting thresholds means no samples exceeded those minimum detection limits. For a homeowner, this indicates the public water system’s fluorinated chemical levels remain below federal reporting levels and well under upcoming health-based maximum contaminant levels (MCLs).
Evaluating Filtration Capacity Relative to Household Daily Water Use
While overall system results show low or undetectable PFAS, individual household conditions can vary. When selecting treatment solutions like the C-Series PFAS Forever Chemicals Filter, it’s important to assess daily water demand. The device is designed to handle typical residential flow rates and volumes, ensuring effective reduction of specified PFAS compounds over extended periods. Matching treatment capacity to household water use helps maintain filtration performance and maximizes contaminant removal throughout the device’s service life.
Understanding 'Detected,' 'Median,' and 'Range' in Your Water Quality Report
In EPA sampling records, 'detected' means that a measuring instrument found a compound at or above a certain threshold known as the reporting level. This detection should not be confused with a violation or unsafe condition. 'Median' refers to the middle value of all detected sample amounts, showing the typical concentration during the monitoring period. 'Range' indicates the spread between the lowest and highest detected values. In Jackson County’s data, all key PFAS compounds have median and range values at or below detection limits, confirming consistent findings over time.
Potential Consequences of Leaving PFAS Untreated in Household Water
Per- and polyfluoroalkyl substances are persistent in the environment and resistant to natural breakdown. Without effective filtration, trace amounts can accumulate in household plumbing or fixtures. While the public water system shows no health-based violations, individual well water or older plumbing may require testing to clarify PFAS presence. Untreated PFAS in drinking water, even at low levels, can gradually increase exposure over years. Home filtration solutions documented for PFAS reduction provide a way to manage this risk proactively.
Final Note: The data presented here pertains to Jackson County’s public water supply as a whole and does not specify water quality at any single property. Homeowners concerned about PFAS in their own water should seek current, site-specific water testing. The absence of detections above reporting levels in this public system means the water meets federal health-based standards and should not be assumed to contain elevated PFAS. If treatment is desired, the C-Series PFAS Forever Chemicals Filter ships ready to configure and offers documented reduction of multiple PFAS compounds commonly monitored in federal surveys.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-11-18. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR5 monitoring (2023-2025) for WEST JACKSON CO UTILITY DIST (MS0300156), MS: 270 results across 10 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level