The Sacramento Suburban Water District serves nearly 195,000 residents across 46,996 connections in Sacramento County using surface water sources. Government monitoring conducted under EPA's Unregulated Contaminant Monitoring Rule 5 (UCMR5) between May 2024 and April 2026 found several per- and polyfluoroalkyl substances (PFAS) detected at very low levels in this system. None of these detections exceed federal Maximum Contaminant Levels (MCLs), and there are no health-based violations recorded for PFAS in this public water system.
Firefighting Foam, Textile Finishing, and Landfill Sources: Which Fit This Region’s Record
PFAS, also called fluorinated compounds or 'forever chemicals,' are a group of man-made substances used in many industrial and consumer products. Common sources relevant to Sacramento’s water system can include historical use of aqueous film-forming foams (AFFF) for firefighting, manufacturing processes involving textiles and coatings, and leachate from landfills that may release trace fluorinated chemicals into surface water supplies. The fact that Sacramento Suburban Water District’s supply is surface water means upstream environmental and industrial activities influence PFAS presence.
The Hazard Index for Mixtures of Newer Compounds, Explained Without a Health Claim
Monitoring detected multiple PFAS compounds such as PFHxS, PFBS, PFHxA, and PFPeA above their reporting levels but all well below federal MCLs set for 2024. These substances have different properties and potential effects, which can be combined conceptually into a 'hazard index' to evaluate cumulative exposure risks. However, no detection alone or in mixture here implies a violation or unsafe condition. This index helps regulatory scientists prioritize monitoring and research rather than serving as an individual health prediction.
The Household or Facility Symptoms That Do and Do Not Point to This Problem
Symptoms experienced in your home’s water—such as unusual taste, staining, or corrosion—are not definitive indicators of PFAS presence or levels. Since PFAS occur at extremely low concentrations and are chemically stable, they typically do not cause sensory water changes visible to the household. If your existing water treatment equipment is no longer delivering the expected reduction of these compounds or water quality concerns persist, only specific testing of your home's water can determine your own PFAS levels.
How Sample Depth, Well Depth or Source Type Changes What a Reader Should Expect
Because Sacramento Suburban Water District uses surface water, measurements reflect contaminants present in reservoirs, rivers, or lakes feeding the system. Deeper well samples or private wells might show differing PFAS concentrations due to local geology, groundwater flow, and industrial impacts. Surface water tends to display more immediate influence from land-based sources. Thus, your individual water's PFAS profile may not match the system-wide findings and requires direct sampling to clarify.
How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means
The 116 samples collected over the two-year monitoring period represent a substantial data set for this system, providing a reliable snapshot of PFAS occurrence in system-supplied water. Still, this sampling does not encompass individual residences or private wells, so it cannot substitute for in-home testing. Smaller or single-point sampling can miss fluctuations or localized impacts, so if you suspect your water is affected differently, specific testing is the only way to know.
In summary, Sacramento Suburban Water District’s 2024-2026 EPA UCMR5 record shows low-level detections of several PFAS compounds—perfluorohexanesulfonic acid (PFHxS), perfluorobutanesulfonic acid (PFBS), perfluorohexanoic acid (PFHxA), and perfluoropentanoic acid (PFPeA)—measured in nanograms per liter (parts per trillion). No detection exceeds federal limits. This data reflects system-wide surface water quality and is not a direct test of your home’s tap water. For households with existing equipment no longer performing as expected on PFAS, the Fleck PFAS Forever Chemicals Filter ships ready to configure as a direct-purchase option to address ongoing concerns with these fluorinated substances. For verification and further information, consult the EPA’s public water system records for Sacramento Suburban Water District.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2026-04-23. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR5 monitoring (2023-2025) for SACRAMENTO SUBURBAN WATER DISTRICT (CA3410001), CA: 1160 results across 10 listed contaminants, 11 detections above the reporting level; compared with the applicable federal MCL, none above
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