Residents in Bear and Hockessin often notice subtle differences in their tap water over time, such as slight variations in taste or how their glassware appears after washing. These observations may relate to traces of PFAS, a group of man-made chemicals monitored federally due to their persistence. Artesian Water Company, serving these communities through surface water sources, provides one of the region’s largest public water systems.
How Do Seasonal or Multi-Year Changes Show Up in PFAS Monitoring for This Area?
EPA's ongoing data collection from May 2024 to February 2025 shows measurable PFAS compounds in Artesian's system at various times. Among 45 samples tested, some compounds like PFOA and PFOS were detected intermittently above their reporting levels but at concentrations below or near new federal standards set for 2024. Levels fluctuate within the range seen across these months, reflecting natural and operational variations rather than steady increases or decreases.
What Does This Range of PFAS Concentrations Mean Compared to Federal Standards—and What Does It Not Mean?
The federal maximum contaminant levels (MCLs) for PFOA and PFOS are 4.0 ng/L (nanograms per liter). Monitoring showed some PFOA and PFOS values above their reporting thresholds but below or slightly surpassing these MCLs. Importantly, detections confirm presence but do not indicate regulatory violations or unsafe water by themselves. PFHxS, for instance, was found occasionally but always well below its 10 ng/L standard. Other PFAS chemicals appeared at low levels without corresponding MCLs yet are tracked to provide a clearer contamination profile.
What Information Should I Gather Before Choosing a PFAS Treatment for My Home?
- Get a water test specific to your household supply to understand your exact PFAS levels and types present.
- Note your water system connection details and any recent public notices about water quality.
- Document the number of people in your household and typical daily water usage patterns.
- Understand whether your home is full-time or seasonal to anticipate variations in water demand and exposure.
How Does Household Size or Seasonal Use Affect PFAS Treatment Needs?
Larger or multi-resident households will generally consume more water, requiring treatment solutions with higher flow capacity or more frequent media regeneration. Seasonal homes might see different PFAS concentrations if water usage patterns impact system hydraulics or if water quality shifts with changes in the source water over time. Knowing these factors helps select appropriately scaled equipment that ships ready to configure for your water profile and demand.
What Happens if PFAS Contamination Remains Untreated Over Many Years?
Since PFAS are persistent in the environment, long-term exposure through drinking water can slowly accumulate. While current standards aim to limit health risks, untreated PFAS presence may contribute to concerns over time depending on individual sensitivity and exposure duration. Addressing PFAS through water treatment reduces ongoing intake but is one part of a broader water quality management approach.
How Can I Compare PFAS Data Here with Nearby New Castle County Areas Without Overreading It?
Nearby areas served by different water systems might show varying PFAS detection frequencies and levels. Comparing these requires careful attention to the number of samples taken, water sources, and treatment histories. The data for Artesian Water Company reflect a comprehensive sample size and surface water sourcing, providing a specific profile that may not match wells or other systems. Avoid assuming your home’s water mirrors any area average without a test.
In summary, Artesian Water Company's EPA record for Bear and Hockessin shows measurable PFAS compounds with variable concentrations below or near federal limits over recent months. This data reflects the system's extensive surface water supply serving over 230,000 people, not individual home conditions. For those deciding on treatment, the Autotrol PFAS Forever Chemicals Filter offers a technology option designed to address PFAS reduction, shipping ready to configure to residential needs based on specific water test results. For the complete government data record, visit EPA’s Safe Drinking Water Information System Public Water System records.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-02-19. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR5 monitoring (2023-2025) for ARTESIAN WATER COMPANY (DE0000552), DE: 450 results across 10 listed contaminants, 76 detections above the reporting level; 10 results above a 2024 federal MCL
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