2025 report; hardness from utility FAQ
See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.
171–256.5mg/L as CaCO₃
≈ 10–15 grains per gallon
Utility treatment or hardness guidance, rather than a measurement at your home. Confirm incoming hardness for final softener sizing.
3.8ppm
Report comparison: 4 ppm disinfectant limit.
The displayed result is the report’s compliance average. Individual samples can be higher. Filtration can target disinfectant taste and odor.
Not detected
No amount above the reporting threshold in the listed monitoring.
Not detected does not mean zero. Reporting thresholds are not the same as regulatory limits or health goals.
0.60ppm
Report comparison: 4 ppm federal primary limit.
This is a historical sample, not a statement about current fluoridation. Fluoride reduction needs a dedicated treatment option.
Not available
An amount has not been summarized for this provider.
This does not mean zero or prove that the substance is absent. Check the provider’s full report for the relevant year.
0.8ppb
90th percentile across sampled taps.
A 90th-percentile result is not your tap result or the highest sample. Below an action level does not mean zero risk; lead’s health goal is zero.
0.3ppm
90th percentile across sampled taps.
A utility percentile does not tell you the level at your own tap.
Provider-specific results not selected
Continue with your home details for general filtration guidance. We will not use another utility’s numbers as your result.
Find My Water System →A utility report does not describe a private well
County utility results cannot tell us what is in your well. Use current laboratory results to choose treatment for your water and size the equipment for your home.
Find My Water System →Explore well-water systemsTHE DETAILS BEHIND THE HIGHLIGHTS
Explore the available local reports below. Each table names its supplier and dates; results from different providers are not interchangeable. The provider selector changes your highlights, while this section keeps the county’s source tables together.
The report includes a Tampa Bay Water foaming-agents result of 1.80 ppm against a 0.5 ppm secondary standard, marked as a violation. This is an aesthetic standard and a supplier result, not a measured concentration at your tap. Source
ppm = mg/L; ppb = µg/L; ppt = ng/L. ND means below detection, not zero. MCL and MRDL are regulatory benchmarks reported in the source; action levels trigger system action. Annual averages, individual samples and household-tap percentiles are different measures. Compare like with like.
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| Chlorine and chloramines | 3.8 ppmHighest running annual averageIndividual range: 0.30–5.30 ppm | MRDL 4 ppm | 2025 Source |
| TTHM | 41.553 ppbHighest locational running annual averageIndividual range: 31.40–48.63 ppb | MCL 80 ppb | 2025 Source |
| HAA5 | 28.113 ppbHighest locational running annual averageIndividual range: 13.35–35.03 ppb | MCL 60 ppb | 2025 Source |
| Barium | 0.0126 ppmMarch sample | MCL 2 ppm | 2025 Source |
| Chromium · total | 0.8 ppbMarch sample | MCL 100 ppb | 2025 Source |
| FluorideThe report notes fluoridation later stopped; this is a historical result. | 0.60 ppmMarch sample | MCL 4 ppm | 2025 Source |
| Nickel | 3.3 ppbMarch sample | Source MCL 100 ppb | 2025 Source |
| Nitrate · as nitrogen | 0.13 ppmMarch sample | MCL 10 ppm | 2025 Source |
| Sodium | 29.7 ppmMarch sample | Source standard 160 ppm | 2025 Source |
| Lead · household tapsOne sampled site exceeded the action level; the report marks no system action-level exceedance. | 0.8 ppb90th percentile | Action level 15 ppb | 2023 Source |
| Copper · household taps | 0.3 ppm90th percentile | Action level 1.3 ppm | 2023 Source |
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| BromateReported by the regional supplier; not a measurement at your home. | 4.66 ppbHighest running annual averageIndividual range: 2.59–7.18 ppb | MCL 10 ppb | 2025 Source |
| ChloriteReported by the regional supplier; not a measurement at your home. | 0.00782 ppmHighest monthly average | MCL 1 ppm | 2025 Source |
| Alpha emittersReported by the regional supplier; not a measurement at your home. | 3.5 pCi/LHighest reported resultIndividual range: ND–3.5 pCi/L | MCL 15 pCi/L | 2025 Source |
| Combined radiumReported by the regional supplier; not a measurement at your home. | 2.1 pCi/LHighest reported resultIndividual range: 0.6–2.1 pCi/L | MCL 5 pCi/L | 2025 Source |
| DalaponReported by the regional supplier; not a measurement at your home. | 3.4 ppbHighest detected resultIndividual range: ND–3.4 ppb | MCL 200 ppb | 2025 Source |
| Foaming agentsSource marks a secondary-standard violation. Aesthetic standard; supplier sample, not a home result. | 1.80 ppmHighest detected resultIndividual range: ND–1.80 ppm | Secondary standard 0.5 ppm | 2025 Source |
These results describe Pinellas County Utilities (FL6521405), not every home or water system in Pinellas County. Match this system to your water bill before using the results.
Source record: PINELLAS COUNTY UTILITIES · Selected test records: 2015-03-02 – 2024-04-23
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.
MyTapWater reports no detections in this panel. Reporting limits vary by compound. The named compounds below are those individually verified in the retrieved source; the full panel is available through the source link. Selected PFAS sample dates: 2023-07-19 – 2024-04-23
MyTapWater reports lithium was tested and not detected. Selected lithium sample dates: 2023-07-19 – 2024-04-23
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 |
|---|---|---|
| chlorate | Detected | – |
| chromium-6 | Detected | – |
| chromium | Detected | – |
| strontium | Detected | – |
| vanadium | Detected | – |
| cobalt | Below reporting level | – |
| molybdenum | Below reporting level | – |
| 4-androstene-3,17-dione | Below reporting level | – |
| bromomethane | Below reporting level | – |
| chloromethane | Below reporting level | – |
| equilin | Below reporting level | – |
| estriol | 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. Use the published hardness for your provider or a home test to choose softening for scale control.
These tables identify Pinellas County Utilities and its regional supplier data. If a different utility appears on your bill, use that utility’s report. Shared source water does not make distribution-system results interchangeable. Source
No. Utility reports describe particular systems and sample periods. Plumbing, service lines and treatment already in a home can change the result at the tap.
No. Select equipment by its specific tested or certified reduction claims and rated flow. A long contaminant list is not evidence that a particular system removes every item.
No result rows match that search. Try another substance or clear your search.
Next, match the equipment to your home and water source.
These labels compare a reported result with its stated benchmark. They are not a blanket safety rating. Health goals, compliance limits, action levels and reporting thresholds mean different things.
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More about your local water
For Dunedin, start with the named provider and source dates above. Where a separate city dataset is not available, this guide uses Pinellas County reference records. Those records describe the listed utility, not every home in the city.
This Dunedin guide uses the named utility records from our county reports. The provider name, dates and source on each result show which system it describes. City boundaries alone do not identify your supplier.
USGS classifies 0–60 mg/L as soft, 61–120 as moderately hard, 121–180 as hard and above 180 as very hard. These describe mineral content, not a health-based limit. A regional map cannot replace a home hardness test.
USGS hardness classifications and limitationsFiltration can address taste, odor, sediment and specific substances when the treatment is designed for them. A softener reduces calcium and magnesium. Your water source, actual hardness and household flow needs guide the combination.
Compare filters and softenersA county or utility report does not test your plumbing or private well. It also cannot prove that a particular filter removes every substance shown. Check the exact system’s treatment stages and verified claims for your goal.
What a whole-house filter can addressA 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.
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.
FROM REPORT TO BETTER WATER
Use the local report as a starting point, then choose the right system size and treatment options.
Match the supplier on your bill. For a private well, use current test results.
Tell us the home details needed for sizing and whether you want dedicated fluoride treatment.
Hire and pay a licensed plumber to confirm the installation layout, water pressure and space requirements.
Water reports, hardness guidance and a starting point for your home.
View water report →Water reports, hardness guidance and a starting point for your home.
View water report →Water reports, hardness guidance and a starting point for your home.
View water report →Water reports, hardness guidance and a starting point for your home.
View water report →Water reports, hardness guidance and a starting point for your home.
View water report →Water reports, hardness guidance and a starting point for your home.
View water report →A useful local question
This guide uses the named utility records from our county reports, with local utility links where available. The supplier, sampling period and source stay attached to each result. Confirm the provider on your bill before applying a result to your home.
Check the water-hardness highlight for the selected provider. It distinguishes a utility result, a regional estimate and unavailable data. A regional estimate is not a measurement of treated water at your tap. Test your incoming water to confirm hardness for system sizing.
A softener is recommended for scale control when the reported or measured hardness supports it. The recommendation beside the highlights explains that distinction. Unknown hardness is not zero; test it before selecting and programming a softener.
Start with a whole-house filter sized for your bathrooms and simultaneous water use. Match its treatment media and verified model-specific reduction claims to your goals. A softener reduces hardness minerals. You choose, hire and pay your own licensed plumber for installation.
No. Answer the home-sizing questions to get started. Your licensed plumber confirms the installation fit. A street address is not required in the matching form.
Each highlight links to its source. Open the full report for the longer tables, sampling details and additional source documents. A date on one result does not update every other result on the page.
Utility measurements take priority over regional estimates when they are available for that provider. Source dates are preserved. Hardness is converted using mg/L as CaCO₃ ÷ 17.1; regional estimates are not presented as home measurements.
Your water → your home → your system
Choose the system size, keep useful existing equipment, and review your filtration goals.