Water Quality in Naples, FL: 714 Violations — Grade C
Grade C · Score 69/100 · 5 water systems · Updated 2026-05-03
Naples's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Tracked under the EPA Safe Drinking Water program, Naples, FL shows 714 water violations on file — findings that span multiple violation categories and are detailed system by system in the data grid further down the page.
Water Quality Map: Naples, FL
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Water Quality by ZIP Code in Naples
Water quality varies across Naples's 17 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 34102 | C | 61 | 42 | 0 | View report → |
| 34103 | C | 61 | 42 | 0 | View report → |
| 34108 | C | 61 | 42 | 0 | View report → |
| 34112 | C | 61 | 42 | 0 | View report → |
| 34104 | C | 66 | 42 | 0 | View report → |
| 34110 | C | 66 | 42 | 0 | View report → |
| 34113 | C | 66 | 42 | 0 | View report → |
| 34114 | C | 66 | 42 | 0 | View report → |
| 34105 | B | 71 | 42 | 0 | View report → |
| 34109 | B | 71 | 42 | 0 | View report → |
| 34116 | B | 71 | 42 | 0 | View report → |
| 34117 | B | 71 | 42 | 0 | View report → |
| 34119 | B | 71 | 42 | 0 | View report → |
| 34120 | B | 71 | 42 | 0 | View report → |
| 34101 | B | 81 | 42 | 0 | View report → |
Water Quality Overview
Naples, Florida receives a water quality grade of C with an overall score of 69 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 5 water systems serving Naples have accumulated 714 EPA violations (all monitoring/reporting type). These violations are tracked across 17 ZIP codes serving approximately 311,385 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Naples's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Naples water systems is 0.0012 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
Water Systems Serving Naples
Naples is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 311,385 people across 17 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 170 enforcement actions against water systems serving Naples. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Naples
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Naples Water Systems
The following contaminants have been detected or caused violations across Naples's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Total Coliform | Microbiological | N/A | 255 | 17 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 51 | 17 | No |
| Lead | Inorganic | 0.015 mg/L | 34 | 17 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 34 | 17 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 34 | 17 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Naples. Recent actions:
| Date | Action Type |
|---|---|
| 2025-08-12 | State Order Extension |
| 2025-07-17 | State Order Extension |
| 2025-07-17 | State Informal Action |
| 2025-06-20 | State Informal Enforcement |
| 2025-05-01 | State Order Extension |
| 2024-12-10 | State Order Extension |
| 2024-11-13 | State Order Extension |
| 2024-11-12 | State Order Extension |
| 2024-08-20 | State Order Extension |
| 2024-08-09 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-08-12.
Naples vs. Nearby Florida Cities
How Naples's water quality compares to similar cities in Florida:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Naples | C | 714 | 5 | 311,385 |
| Pensacola | B | 200 | 5 | 304,591 |
| Sebastian | C | 0 | 2 | 294,646 |
| Cocoa | A | 5 | 1 | 294,039 |
Recommended Water Filters for Naples
Based on contaminants detected in Naples's water supply, these filter types are recommended:
Granular Activated Carbon (GAC, whole-house or under-sink)
- Removes: Chloramine
- Effectiveness: 95-99%
- Cost range: $100–$600
- Certification: NSF/ANSI 42
- Recommended products:
- Aquasana AQ-5200
- Waterdrop Chubby Pitcher
- Berkey Travel
Granular Activated Carbon (GAC, whole-house POE)
- Removes: Trihalomethane (TTHM)
- Effectiveness: 80-99%
- Cost range: $400–$2000
- Certification: NSF/ANSI 53
- Recommended products:
Water Quality by ZIP Code in Naples
Water quality varies across Naples's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 34102 | 61 | C | 42 | 0 |
| 34103 | 61 | C | 42 | 0 |
| 34108 | 61 | C | 42 | 0 |
| 34112 | 61 | C | 42 | 0 |
| 34104 | 66 | C | 42 | 0 |
| 34110 | 66 | C | 42 | 0 |
| 34113 | 66 | C | 42 | 0 |
| 34114 | 66 | C | 42 | 0 |
| 34105 | 71 | B | 42 | 0 |
| 34109 | 71 | B | 42 | 0 |
| 34107 | 81 | B | 42 | 0 |
| 34106 | 81 | B | 42 | 0 |
| 34101 | 81 | B | 42 | 0 |
| 34120 | 71 | B | 42 | 0 |
| 34119 | 71 | B | 42 | 0 |
Common Questions About Naples Water
These are the most common questions residents search for about water quality in Naples, Florida:
Is Naples water hard or soft? Water hardness varies by source. Naples's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Naples tap water? Naples's water receives a grade of C (69/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Naples? Based on detected contaminants, a granular activated carbon (gac, whole-house or under-sink) filter is most recommended. See our Water Filter Matcher for personalized recommendations.
Naples vs. Florida Average
Understanding how Naples compares to the broader Florida average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Naples.
ZIP Codes in Naples
Naples spans 17 ZIP codes. The ZIP with the lowest water quality score is 34101. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.