Water hardness
42–94mg/L as CaCO₃
≈ 2.4–5.5 grains per gallon
Reported utility hardness. A softener reduces the minerals that cause scale; a standard filter does not soften water.
2024 verified data; current report linked
View source ↗- 1Your water
- 2Your home
- 3Your system
LOCAL WATER. CLEAR ANSWERS.
Collier County water quality report
Understand your water. Find the right system for your home.
Water can vary across Collier 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 Collier 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
Collier County Water Sewer District
2024 verified data; current report linked
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.
Soft to moderately hard
Disinfectant residual
3.4ppm
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.
2024
View source ↗PFAS monitoring
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.
2024-10-21 – 2025-04-23
View source ↗Fluoride
0.23ppm
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
60.4 / 29.5ppb · TTHM / HAA5
Report limits: 80 ppb TTHM / 60 ppb HAA5.
Reported compliance values differ from individual sample peaks. Check the full table for ranges, dates and how each result was calculated.
2024
View source ↗Lead & copper
1.2 / 0.0378ppb lead / ppm copper
Report action levels: 15 ppb lead / 1.3 ppm copper.
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
City of Naples Utilities
2024 verified hardness; current report linked
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
58–102mg/L as CaCO₃
≈ 3.4–6.0 grains per gallon
Reported utility hardness. A softener reduces the minerals that cause scale; a standard filter does not soften water.
2024 verified hardness; current report linked
View source ↗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
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 Collier 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.
2024 verified data · newer report links below
The detailed results and hardness figures shown here come from verified 2024 utility reports, with older sample dates retained. The county and city both list 2025 reports; those newer numerical tables are not reproduced here. Open the current report for your supplier below.
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.
- Collier County · 2024 report · detailed data below
- Collier County · 2025 report and current report directory
- City of Naples · 2024 report · separate hardness
- City of Naples · current report directory
01Collier County Water Sewer District · compliance tablesReported results, sample dates and source links9
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| Fluoride | 0.23 ppmReported detected level | MCL 4 ppm | 2023 Source |
| Nitrate (as nitrogen) | 0.11 ppmReported detected levelIndividual range: ND–0.11 ppm | MCL 10 ppm | 2024 Source |
| Sodium | 57.8 ppmReported detected levelIndividual range: 45.6–57.8 ppm | Source standard 160 ppm | 2023 Source |
| Barium | 0.0033 ppmReported detected levelIndividual range: ND–0.0033 ppm | MCL 2 ppm | 2023 Source |
| Chloramines | 3.4 ppmReported compliance averageIndividual range: 1.6–4.1 ppm | MRDL 4 ppm | 2024 Source |
| Haloacetic acids (HAA5) | 29.5 ppbReported compliance valueIndividual range: 17.7–34.6 ppb | MCL 60 ppb | 2024 Source |
| Total trihalomethanes (TTHM) | 60.4 ppbReported compliance valueIndividual range: 34.1–75.4 ppb | MCL 80 ppb | 2024 Source |
| Copper · household tapsNo sampled sites exceeded the action level. | 0.0378 ppm90th percentile · August–September | Action level 1.3 ppm | 2023 Source |
| Lead · household tapsNo sampled sites exceeded the action level. | 1.2 ppb90th percentile · August–September | Action level 15 ppb | 2023 Source |
02Collier County Water Sewer District · selected PFAS resultsReported results, sample dates and source links6
| Substance / indicator | Reported result | Benchmark in source | Sample year / source |
|---|---|---|---|
| PFOSND does not mean zero; no exact concentration is assigned. | Not detectedOctober 2024 UCMR5 sample | See report for reporting limits | 2024 Source |
| PFOAND does not mean zero; no exact concentration is assigned. | Not detectedOctober 2024 UCMR5 sample | See report for reporting limits | 2024 Source |
| PFHxSND does not mean zero; no exact concentration is assigned. | Not detectedOctober 2024 UCMR5 sample | See report for reporting limits | 2024 Source |
| PFNAND does not mean zero; no exact concentration is assigned. | Not detectedOctober 2024 UCMR5 sample | See report for reporting limits | 2024 Source |
| PFBSND does not mean zero; no exact concentration is assigned. | Not detectedOctober 2024 UCMR5 sample | See report for reporting limits | 2024 Source |
| PFBAND does not mean zero; no exact concentration is assigned. | Not detectedOctober 2024 UCMR5 sample | See report for reporting limits | 2024 Source |
Selected provider records
View full MyTapWater report A closer look at your local water
These results describe Collier County Regional Water Treatment Plant (FL5114069), not every home or water system in Collier County. Match this system to your water bill before using the results.
Source record: COLLIER COUNTY REGIONAL WTP · Selected test records: 2014-04-07 – 2025-04-23
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 monitoringNone of 29 tested PFAS compounds detected
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: 2024-10-21 – 2025-04-23
18 selected entries
- PFBS
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFHxA
- PFHxS
- PFMBA
- PFMPA
- PFNA
- PFOA
- PFOS
- PFPeA
- PFPeS
- PFTA
- PFTrDA
- PFUnA
Lithium monitoringNot detected
MyTapWater reports lithium was tested and not detected. Sample dates and reporting limits: see the source report.
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 |
|---|---|---|
| HAA5 | Detected | – |
| HAA6Br | Detected | – |
| HAA9 | Detected | – |
| chlorate | Detected | – |
| chromium | Detected | – |
| chromium-6 | Detected | – |
| strontium | Detected | – |
| vanadium | Detected | – |
| butylated hydroxyanisole | Below reporting level | – |
| germanium | Below reporting level | – |
| o-toluidine | Below reporting level | – |
| quinoline | 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
Does a Naples address mean I receive City of Naples water?
No. Check the utility name on your bill. The county utility and City of Naples have different reports; other providers and private wells need their own water information. Source
Why can a regional estimate say “very hard” when the utility number is lower?
Regional groundwater and delivered drinking water are different measurements. Collier’s report describes membrane treatment and lime softening. Use the dated finished-water figure for your supplier, then test at home before deciding on a softener. 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
- Collier County · 2024 report · detailed data below
- Collier County · 2025 report and current report directory
- City of Naples · 2024 report · separate hardness
- City of Naples · current report directory
- Source · USGS
- Source · CDC
- MyTapWater · Collier County Regional Water Treatment Plant · FL5114069 · 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
A Naples mailing address does not identify the utility. Collier County Water Sewer District and City of Naples operate separate drinking-water systems. Use the supplier on your bill; these tables do not represent Marco Island, other utilities or private wells.
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 Collier County
Choose a community for local context and the relevant utility reports.
Marco Island
Water reports, hardness guidance and a starting point for your home.
View water report ↗Naples
Water reports, hardness guidance and a starting point for your home.
View water report ↗Pine Ridge (Collier County)
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 Collier 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.
- Collier County Water Sewer District2024 verified data; current report linked
- City of Naples Utilities2024 verified hardness; current report linked
- USGS hardness classifications and limitations
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.