PFAS in one paragraph
Per- and polyfluoroalkyl substances are a family of thousands of man-made chemicals valued for resisting heat, grease and water. They have been used in non-stick coatings, stain-resistant fabrics, food packaging and some firefighting foams. They break down very slowly, which is why they turn up in water supplies around the country. According to NMB Water's 2025 report, EPA set final limits for PFOA and PFOS of 4 parts per trillion each in 2024, with a compliance deadline of 2031.
What NMB Water reports
- Additional Contaminants Monitoring table: the 2025 report lists results for PFOS, PFOA, PFNA, PFHxS and a PFAS hazard index, as contaminants for which standards were recently set and initial compliance monitoring is underway.
- Voluntary monitoring: NMB says it voluntarily monitored 29 PFAS in 2025.
- UCMR: under EPA's Unregulated Contaminant Monitoring Rule, NMB tested for lithium and PFAS analytes in 2025, and the report says all results were below minimum reporting levels.
- Treatment: NMB states that the Norwood plant's reverse osmosis and nanofiltration reduce PFAS, and that it plans to retire lime softening by the EPA deadline.
Read the table yourself rather than relying on summaries; the units, ranges and footnotes matter. NMB's Water Quality Manager can be reached at 305-948-2960. If your building is on Miami-Dade WASD, its Water Quality Report has its own PFAS table.
Choosing a certified filter
| Type | Certification to look for | Fits |
|---|---|---|
| Under-sink reverse osmosis | NSF/ANSI 58 with a PFOA/PFOS reduction claim | Condo or house kitchen |
| Under-sink or countertop carbon block | NSF/ANSI 53 with a PFOA/PFOS reduction claim | Kitchen |
| Pitcher | NSF/ANSI 53 PFOA/PFOS claim, if any | Small households; frequent cartridge changes |
In every case, check the exact model in the certifier's online listing and replace cartridges on schedule; a filter past its rated capacity no longer meets its claim.
Where Living Water stands
Living Water does not claim that its systems remove PFAS. If PFAS reduction is your goal, the claim you need is a specific certified PFOA/PFOS listing on the model you buy, and Jorge will point you toward checking exactly that. His free visit can still help: he explains your utility report, tests what the in-home screening covers, and talks through drinking-water options for your kitchen.
Testing for PFAS
PFAS cannot be measured with an in-home screening kit. It takes a specialized certified laboratory and careful sampling. For most Aventura households on NMB Water, the utility's published monitoring is the practical starting point; a private lab test is an option if you want a reading from your own tap.
Book
Call, text or WhatsApp (305) 793-5974 for a free in-home visit, and have your utility's report handy.
https://www.citynmb.com/DocumentCenter/View/14691/2025-CCR-ENGLISH-web-version
https://www.miamidade.gov/water/library/reports/water-quality-2024.pdf
Updated 2026-10-17 · Living Waters · Jorge Canela, Water Quality Specialist