TapSafetyReport
C50/100

Marco Island Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 31,830 residents · Florida

What's In Marco Island's Tap Water?

69
Contaminants Tested
1
Exceed EPA Limits
2
Above EPA Goals
3 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
PFOA
0.007 µg/L0.004 µg/LOver Limit
chlorate
351.00 µg/L—Above Goal
Lead (90th percentile)
0.003 mg/L0.015 mg/LAbove Goal

EPA Violation History

7

Violations (last 5yr)

0

Unresolved

0

Health-Related

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – March 14, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 1, 2024 – June 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Water Utility Details

MARCO ISLAND UTILITIES (CITY OF)
Population Served

31,830

Water Source

Surface Water

System ID

FL5110183

Frequently Asked Questions About Marco Island Water

Is Marco Island tap water safe to drink?

Marco Island, Florida tap water receives a grade of C (50/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 20 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.

What contaminants are in Marco Island's water?

Of the 69 contaminants tested in Marco Island's water supply, the most notable include PFOA, Lead (90th percentile), chlorate. 1 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does Marco Island have any water quality violations?

Yes, Marco Island has 20 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MON, MR. 4 of these are health-based violations, which are the most serious category.

Do I need a water filter in Marco Island?

Based on EPA data, using a water filter in Marco Island is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.

Where does Marco Island's tap water come from?

Marco Island's drinking water is sourced from surface water and supplied by MARCO ISLAND UTILITIES (CITY OF). The system serves approximately 31,830 people. Surface water sources include rivers, lakes, and reservoirs.

How often is Marco Island's water tested?

Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Marco Island's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.

How does Marco Island's water compare to other cities in Florida?

Marco Island's water quality score of 50/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Florida state page to see how all cities in the state compare.

What should I do if I'm concerned about Marco Island's water quality?

If you have concerns about Marco Island's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (MARCO ISLAND UTILITIES (CITY OF)) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.

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