Water hardness
110mg/L as CaCO₃
≈ 6.4 grains per gallon
MyTapWater’s regional estimate. It is not a measurement of this utility’s finished water or your home’s water; treatment can change hardness.
Undated regional estimate
View source ↗- 1Your water
- 2Your home
- 3Your system
LOCAL WATER. CLEAR ANSWERS.
Pasco County water quality report
Understand your water. Find the right system for your home.
Water can vary across Pasco County. Start with the provider on your bill, see what the available reports show, then match a filtration system to your home.
Find My Water System
Next: match your home and see your price.
Next: your homeFind my system →
START HERE
Who supplies your water?
Choose the name on your water bill. A Pasco County address alone does not identify your water provider.
Not listed or not sure? Choose the matching option below.
These are published utility records and clearly labeled regional estimates—not a test of the water at your tap. Dates and sources stay attached to each result.
REPORT HIGHLIGHTS FOR
Pasco County · Regional PWS 651-1361
2025
YOUR WATER AT A GLANCE
What stands out—and what it means.
The label tells you how each amount compares. Missing information stays clearly marked.
Moderately hard · regional estimate
Disinfectant residual
3.44ppm
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.
2025
View source ↗PFAS monitoring
6compounds detected in listed monitoring
A detection alone does not tell you whether an amount is high.
Open the full report for each compound, amount and sample date. Historical detections do not establish today’s concentration or a current violation.
2023-07-18 – 2024-05-13
View source ↗Fluoride
0.28ppm
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.
2023
View source ↗Disinfection byproducts
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.
2013-02-18 – 2024-05-13
View source ↗Lead & copper
Not detectedlead · reported 90th percentile
Report comparison: 15 ppb lead action level.
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.
2023
View source ↗REPORT HIGHLIGHTS FOR
Another provider / I’m not sure
Provider-specific results not selected
YOUR WATER AT A GLANCE
What stands out—and what it means.
The label tells you how each amount compares. Missing information stays clearly marked.
Water hardness
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.
Disinfectant residual
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.
PFAS monitoring
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.
Fluoride
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.
Disinfection byproducts
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.
Lead & copper
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.
REPORT HIGHLIGHTS FOR
My home uses a private well
A utility report does not describe a private well
Your well needs its own water test.
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 systemsThese 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.
Coming soon
Ready? Continue to your home →
THE DETAILS BEHIND THE HIGHLIGHTS
Full Pasco County water report
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.
2025 utility reports
PFAS values below are explicitly tied to a Tampa Bay Water sampling point. The report also records a supplier foaming-agents secondary-standard violation. Neither establishes the result at a particular Pasco home. 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.
01Pasco County Regional · PWS 651-1361Reported results, sample dates and source links14
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| Chlorine and chloramines | 3.44 ppmHighest running annual averageIndividual range: 0.6–5.8 ppm | MRDL 4 ppm | 2025 Source |
| TTHM | 21.2 ppbHighest locational running annual averageIndividual range: 3.5–39.4 ppb | MCL 80 ppb | 2025 Source |
| HAA5 | 11.7 ppbHighest locational running annual averageIndividual range: 0.3–11.3 ppb | MCL 60 ppb | 2025 Source |
| Alpha emitters | 2.98 pCi/LHighest reported resultIndividual range: ND–2.98 pCi/L | MCL 15 pCi/L | 2023 Source |
| Combined radium | 1.713 pCi/LHighest reported resultIndividual range: ND–1.713 pCi/L | MCL 5 pCi/L | 2023 Source |
| Uranium | 1.41 µg/LHighest reported resultIndividual range: ND–1.41 µg/L | MCL 30 µg/L | 2023 Source |
| Arsenic | 1.2 ppbHighest reported resultIndividual range: ND–1.2 ppb | MCL 10 ppb | 2023 Source |
| Barium | 0.016 ppmHighest reported resultIndividual range: 0.005–0.016 ppm | MCL 2 ppm | 2023 Source |
| Fluoride | 0.28 ppmHighest reported resultIndividual range: 0.061–0.28 ppm | MCL 4 ppm | 2023 Source |
| Nitrate · as nitrogen | 1.45 ppmJanuary sampleIndividual range: ND–1.45 ppm | MCL 10 ppm | 2025 Source |
| Nitrite · as nitrogen | 0.020 ppmJanuary sampleIndividual range: ND–0.020 ppm | MCL 1 ppm | 2025 Source |
| Sodium | 32.3 ppmHighest reported resultIndividual range: 7.4–32.3 ppm | Source standard 160 ppm | 2023 Source |
| Lead · household taps | ND ppb90th percentile · June | Action level 15 ppb | 2023 Source |
| Copper · household taps | 0.975 ppm90th percentile · June | Action level 1.3 ppm | 2023 Source |
02Tampa Bay Water · RSWTPEFF supply sampling pointReported results, sample dates and source links5
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| PFBAMRL is a reporting threshold, not a safety limit. The source lists PFAS compliance status as N/A; this row does not assign a current violation or home concentration. | 6.5 pptAverage · August and NovemberIndividual range: 5.9–7.5 ppt | MRL 5 ppt | 2025 Source |
| PFBSMRL is a reporting threshold, not a safety limit. The source lists PFAS compliance status as N/A; this row does not assign a current violation or home concentration. | 7.4 pptAverage · August and NovemberIndividual range: 5.6–8.9 ppt | MRL 3 ppt | 2025 Source |
| PFHxAMRL is a reporting threshold, not a safety limit. The source lists PFAS compliance status as N/A; this row does not assign a current violation or home concentration. | 5.9 pptAverage · August and NovemberIndividual range: 5.4–6.4 ppt | MRL 3 ppt | 2025 Source |
| PFOSMRL is a reporting threshold, not a safety limit. The source lists PFAS compliance status as N/A; this row does not assign a current violation or home concentration. | 5.5 pptAverage · August and NovemberIndividual range: 5.3–5.7 ppt | MRL 4 ppt | 2025 Source |
| PFPeAMRL is a reporting threshold, not a safety limit. The source lists PFAS compliance status as N/A; this row does not assign a current violation or home concentration. | 7.9 pptAverage · August and NovemberIndividual range: 6.7–8.7 ppt | MRL 3 ppt | 2025 Source |
03Tampa Bay Water · surface-water supplyReported results, sample dates and source links1
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| Foaming agentsThe source marks an aesthetic-standard violation. This supplier value is not a Pasco tap measurement. | 1.80 ppmHighest detected resultIndividual range: ND–1.80 ppm | Secondary standard 0.5 ppm | 2025 Source |
Selected provider records
View full MyTapWater report A closer look at your local water
These results describe Pasco County Regional Public Water System (FL6511361), not every home or water system in Pasco County. Match this system to your water bill before using the results.
Source record: PCUD-PASCO COUNTY REGIONAL PWS · Selected test records: 2013-02-18 – 2024-05-13
How to read these results
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 monitoring6 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 | 8.1 ppt | 6 | |
| PFPeA | 10 ppt | 13 | |
| PFBS | 8.7 ppt | 8 | |
| PFHxA | 8.1 ppt | 11 | |
| PFBA | 6.7 ppt | 3 | |
| PFHpA | 3.8 ppt | 2 |
Lithium monitoringNot detected
MyTapWater reports lithium was tested and not detected. Sample dates and reporting limits: see the source report.
More tested substances3 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 |
|---|---|---|
| chlorate | Detected | – |
| 1,4-dioxane | Detected | – |
| 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. Use the published hardness for your provider or a home test to choose softening for scale control.
Common questions
Why do some Pasco results say 2023 in a 2025 report?
Utilities do not sample every substance at the same frequency. The 2025 Regional report includes older permitted sampling results, including 2023 lead, copper and several inorganic results. Each row preserves its sample year. Source
Does this report test my home?
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.
Will one whole-home filter remove everything listed?
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.
Sources & methodology
- Pasco Regional · 2025 · PWS 651-1361
- All Pasco County system reports
- Source · USGS
- Source · CDC
- MyTapWater · Pasco County Regional Public Water System · FL6511361 · Source reviewed October 3, 2026
No result rows match that search. Try another substance or clear your search.
A quick guide to the numbers
- ppm, ppb and ppt
- Parts per million, billion and trillion. Compare quantities only after matching their units.
- Not detected / below reporting level
- The test did not report an amount above its reporting threshold. It does not establish a concentration of zero.
- Limits, action levels and goals
- A compliance limit is not a health goal. Lead and copper use system action levels, while a reporting limit describes what the test can report.
Turn the report into a starting point.
Next, match the equipment to your home and water source.
A LITTLE MORE CONTEXT
More about your local water
The Regional Water System reports receiving about 95% of its drinking water from Tampa Bay Water. Its supply combines groundwater, surface water and desalinated water. Pasco’s directory lists separate reports for systems including Lake Jovita, Blanton Lakes and Southeast No. 2.
How hard is the water?
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 limitationsFilter and softener: different jobs
Filtration 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 softenersWhat this report cannot tell you
A 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 address3. Explore your city
Cities & communities in Pasco County
Choose a community for local context and the relevant utility reports.
Land O’ Lakes
Water reports, hardness guidance and a starting point for your home.
View water report ↗New Port Richey
Water reports, hardness guidance and a starting point for your home.
View water report ↗Wesley Chapel
Water reports, hardness guidance and a starting point for your home.
View water report ↗Zephyrhills
Water reports, hardness guidance and a starting point for your home.
View water report ↗FROM REPORT TO BETTER WATER
A clear next step for your home.
Use the local report as a starting point, then choose the right system size and treatment options.
- 1
Confirm your water source
Match the supplier on your bill. For a private well, use current test results.
- 2
Find your system
Tell us the home details needed for sizing and whether you want dedicated fluoride treatment.
- 3
Have your plumber install it
Hire and pay a licensed plumber to confirm the installation layout, water pressure and space requirements.
COMMON QUESTIONS
Using your Pasco County report
Does one county report cover every home?
No. Counties can contain multiple utilities, purchased-water supplies and private wells. The named supplier and sampling period define the scope of each result.
Should I choose a filter or a softener?
Choose filtration around your water source and the substances or taste issues you want to address. Add a softener when reported or measured hardness supports scale control. If the only number is a regional estimate, confirm your incoming water before final sizing.
Can I move ahead when a result is missing?
Yes—you can explore a whole-home filter without treating missing hardness as zero. Ask your utility for the relevant data and have incoming hardness measured before deciding on softening. Private wells need site-specific testing and treatment selection.
Sources, dates & how to read this page
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.
Find the right fit for your home.
Continue with your water source, choose your home details and review your system.