North Key Largo water quality report
Explore water reports for North Key Largo in Monroe County. Review hardness and selected contaminant results, then find a whole-house filter that fits your home.
This North Key Largo guide reuses selected reports from Monroe County, including FKAA · J. Robert Dean Water Treatment Plant. These are county reference records, not a city-specific test. Match the provider on your bill to the named source.
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Four things to know about the selected report.
County reference: FKAA · J. Robert Dean Water Treatment Plant. The results below come from this named supplier in Monroe County; they do not establish the supplier or water quality at a specific North Key Largo address.
Hardness, disinfectant, PFAS and a softener suggestion are shown together. A regional hardness estimate describes an area; a utility measurement describes that supplier’s reported water.
View the full water report ↓Next: find the system for your home →Water report details for North Key Largo
County reference: FKAA · J. Robert Dean Water Treatment Plant. The results below come from this named supplier in Monroe County; they do not establish the supplier or water quality at a specific North Key Largo address.
Each result belongs to the named water system and sampling period. A detection is not automatically a drinking-water violation. “Not detected” means below the test’s reporting limit, not proof that every contaminant is absent.
A closer look at your local water
These results describe FKAA · J. Robert Dean Water Treatment Plant (FL4134357), not every home or water system in Monroe County. Match this system to your water bill before using the results.
Source record: FKAA J. ROBERT DEAN W.T.P. · Selected test records: 2014-04-22 – 2024-04-30
Results come from different testing periods. A detection is not, by itself, a finding that water is unsafe. “Not detected” means below the test’s reporting level; it does not mean zero. Missing results mean we have not verified that data here.
PFAS monitoring8 of 29 tested PFAS compounds detected
The table shows each compound’s highest reported result and latest listed test date. Those may come from different samples. Results are in parts per trillion (ppt).
| Substance | Highest reported result | Latest listed test | Detected samples |
|---|---|---|---|
| PFOS | 50 ppt | 4 | |
| PFOA | 9.9 ppt | 2 | |
| PFBS | 23 ppt | 2 | |
| PFBA | 10 ppt | 2 | |
| PFPeA | 4 ppt | 2 | |
| PFHxS | 3.4 ppt | 1 | |
| PFHpA | 3.3 ppt | 1 | |
| PFHxA | 3.3 ppt | 1 |
Lithium monitoringNot detected
MyTapWater reports lithium was tested and not detected. Selected lithium sample dates: 2023-09-11 – 2024-04-30
More tested substances12 selected entries
Selected historical tests, with their original dates. “Detected” means at least one positive result in the listed period. “Below reporting level” means all retrieved samples for that entry were below the reporting level. These older tests do not describe today’s water at your tap.
| Substance | Reported result | Sampling period |
|---|---|---|
| chromium | Detected | – |
| chromium-6 | Detected | – |
| molybdenum | Detected | – |
| strontium | Detected | – |
| vanadium | Detected | – |
| 1,1-dichloroethane | Below reporting level | – |
| 1,2,3-trichloropropane | Below reporting level | – |
| 1,3-butadiene | Below reporting level | – |
| 1,4-dioxane | Below reporting level | – |
| bromomethane | Below reporting level | – |
| chlorate | Below reporting level | – |
| chloromethane | Below reporting level | – |
This is a selection of results from MyTapWater, which compiles public water-system records. Open the source for the complete tables, methods and reporting limits. Check your utility’s latest report and current notices for updates. Source
A list of tested substances is not a list of what a filter removes. Choose a system using its verified contaminant-reduction specifications and your water source. A softener addresses hardness and remains optional.
Hardness, with the right context.
Start with a whole-house filter. Use the report’s hardness guidance above to decide whether to add a softener for scale and mineral spots.
The utility’s published guidance is more specific than a regional estimate. It is not a current test of every home’s water. Confirm your supplier and incoming hardness before sizing an optional softener.
Use my water and home detailsModerately hard
Undated guidance from Florida Keys Aqueduct Authority; confirm your home’s incoming water. Source
Softening is an optional choice for scale and water feel.
More about your local water
Which report applies to a home in North Key Largo?
This North Key Largo guide reuses selected reports from Monroe County, including FKAA · J. Robert Dean Water Treatment Plant. These are county reference records, not a city-specific test. Match the provider on your bill to the named source.
A city name, mailing address or ZIP code alone does not establish your water supplier. Municipal systems, county utilities and private wells can serve different addresses in the same area.
Match the system to your home.
Bathroom count and simultaneous water use help size the filter. Your plumber checks the main water line, installation space and drain access. Condos and homes with shared plumbing may need building approval or a different installation.
For a private well, use a current well-water test to choose treatment. Public utility reports do not measure your well.
A filter, a softener, or both?
Choose the job you need done. Size comes next, based on water use and peak flow.
Stainless steel whole-home filter
For whole-home filtration goals. Match the exact system’s performance claims to the substances you want to address.
A filter alone does not replace a hardness-removing softener.
Stainless steel whole-home softener
Optional for hard-water scale and water feel. A softener removes hardness minerals; it is not a general contaminant-removal system.
A softener does not replace a filter selected for a specific contaminant.
Stainless steel filter + softener
Choose both when filtration and hardness are separate priorities. You can start with the filter in the home-matching flow.
Both units require maintenance, space and a suitable installation.
Equipment pricing includes free U.S. shipping. Installation and applicable taxes are separate. You hire and pay your plumber directly.
For drinking water alone, a suitable kitchen-tap filter may be enough. Keep working equipment that already meets your goal. Wells, shared plumbing and unusually high demand need a separate assessment. No Clearhouse system is claimed to remove every substance in this report. Source
Choose equipment using model-specific performance evidence and maintain it as instructed. Removing disinfectant throughout a home also changes microbial protection in the plumbing. Source
Your water report is the start. Your home decides the fit.
A few household details help narrow the size. Choose “I’m not sure” for any details you don’t know.
- Confirm the name on your water bill.
- Share bathrooms, household size and existing equipment.
- Choose a system. Hire your own plumber.
Want help choosing?
Send your water goals to Clearhouse for a fit review.
North Key Largo water questions, answered.
Where does the North Key Largo water report come from?
This North Key Largo guide reuses selected reports from Monroe County, including FKAA · J. Robert Dean Water Treatment Plant. These are county reference records, not a city-specific test. Match the provider on your bill to the named source.
Is the water in North Key Largo hard?
The selected source describes the water as moderately hard without a numerical hardness value. This applies to the named utility, not a measured result at your home.
Should I add a water softener in North Key Largo?
The selected utility describes moderately hard water, so consider adding a softener if scale or mineral spots matter to you. You can choose the filter on its own.
Which whole-house filter should I choose for a North Key Largo home?
Start with a whole-house filter sized for your bathrooms and simultaneous water use. Match its treatment media and certified reduction claims to the substances you want to address. A softener handles hardness minerals; it does not replace contaminant-specific filtration. You hire your plumber separately, and installation is not included in the equipment price.
Do I need to enter my home address?
No. Use your bathroom count and other home details to get started. Your licensed plumber confirms the final installation fit.
Sources & methodology
We reuse the named utility records from our county guides and link local utility reports where identified. Results retain their original sampling dates. Hardness is labelled as a utility value or regional estimate. These reports are not a test of an individual home or a live advisory service.
Clearhouse sells water treatment equipment and is not a utility or testing laboratory. Report presence alone does not establish a health risk, a need for treatment or a product’s removal performance.
- MyTapWater · FKAA · J. Robert Dean Water Treatment Plant · FL4134357 · Source reviewed October 3, 2026
- Hardness source · Utility guidance · Undated source; reviewed October 3, 2026.
- Monroe County source guide
- USGS: water hardness classifications
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Better water for your North Key Largo home.
Start with a whole-house filter. Add a softener for mineral scale when the report supports it. You choose and hire your plumber separately.
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