Autotrol PFAS Forever Chemicals Filter

Buy Now

View full details

What does a laboratory test report actually list for PFOA and PFOS in Suffolk's water?

Laboratory tests for water samples from Suffolk County often report PFOA and PFOS concentrations in nanograms per litre (ng/L), equivalent to parts per trillion (ppt). This unit reflects extremely low concentrations and requires measurements shown to four decimal places—such as 0.0065 µg/L equaling 6.5 ng/L. These precise figures are necessary to detect and describe the minute amounts of these fluorinated compounds commonly referred to as 'forever chemicals.'

How does the UCMR5 survey on PFAS differ from previous monitoring like UCMR3?

The EPA's Unregulated Contaminant Monitoring Rule 5 (UCMR5) survey conducted between 2023 and 2025 for Suffolk County’s public water system included a broader mix of PFAS compounds at very low reporting levels. Unlike UCMR3, UCMR5 assessed additional substances such as PFHxS, PFNA, HFPO-DA, and various shorter-chain PFAS at detection levels down to 0.003 µg/L (3 ng/L). This survey provides the most up-to-date federal monitoring data available for Suffolk County’s groundwater-based public water supply.

How do public water system records differ from private well water testing in establishing water quality?

Public water system records reflect aggregated testing over time and numerous sites, providing a regional overview of contaminant levels. For Suffolk County Water Authority’s system, which serves over one million residents, federal records indicate multiple detections of PFAS compounds, some above the newly established federal maximum contaminant levels (MCLs). However, these data do not specify the water quality at any individual home or well, which requires separate, specific laboratory testing. Private well owners should conduct individualized testing to understand their own water condition.

Which fixtures, appliances, or water uses are typically impacted first by PFAS and why?

PFAS are persistent fluorinated compounds that can be present throughout household water but may be most concerning for water consumed or used in cooking. Appliances like ice makers, coffee machines, or drinking water faucets can concentrate exposure because they deliver water directly for ingestion. Other uses such as bathing or laundry involve different exposure routes where PFAS presence is less directly absorbed. Households wanting to target treatment may prioritize point-of-use filtration for drinking water.

What is the hazard index for mixtures of newer PFAS compounds, and why is it relevant?

Because various PFAS substances coexist, including newer and less-studied compounds, regulatory bodies consider combined exposure through a hazard index rather than evaluating each alone. While Suffolk’s public water system detected several fluorinated substances at differing levels, the overall hazard index helps frame cumulative potential effects. This index is used for regulatory guidance rather than direct health claims, informing treatment decisions on managing mixtures of 'forever chemicals.'

What water test should you order to determine your home's PFAS treatment needs?

To settle which treatment class is necessary, order a comprehensive PFAS panel that includes common compounds such as PFOA, PFOS, PFHxS, and others found in Suffolk’s public water system reports. The results should be compared against federal MCLs (for example, 4.0 ng/L for PFOA and PFOS) to assess whether your water requires targeted filtration. For households in Suffolk County evaluating treatment options, the Autotrol PFAS Forever Chemicals Filter ships ready to configure and addresses the removal of multiple PFAS compounds, providing tailored protection based on your test results.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2025-09-29. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR5 monitoring (2023-2025) for SUFFOLK COUNTY WATER AUTHORITY (NY5110526), NY: 4800 results across 10 listed contaminants, 169 detections above the reporting level; 33 results above a 2024 federal MCL