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MARCO ISLAND UTILITIES (CITY OF)

PWS ID: FL5110183 · MARCO ISLAND, Florida 34145

MARCO ISLAND UTILITIES (CITY OF) serves 31,830 people in MARCO ISLAND, Florida using Surface Water water sources. It has 52 recorded EPA violations, including 10 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (7 compounds found).

Water Quality Snapshot: MARCO ISLAND UTILITIES (CITY OF)

MARCO ISLAND UTILITIES (CITY OF) is a private-owned community water system that delivers drinking water to 31,830 residents in MARCO ISLAND, Florida (Collier County) through 10,301 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 52 total violations for this system , of which 10 (19%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 31 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 7 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 0.0092 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Florida, EPA tracks 5,093 public water systems serving 22,381,282 people, with 184,355 cumulative violations and 24,266 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 36.2 violations. MARCO ISLAND UTILITIES (CITY OF)'s 52 violations sit above the Florida average. Statewide, 218 of 402 UCMR5-tested systems have reported PFAS detections (54.2%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

7 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
31,830
Total Violations
52
Health-Based Violations
10
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
10,301
County
Collier
School/Daycare
No
MCL Violations
6
Monitoring Violations
31
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 10 2012
TTHM MR 6 2024
Coliform (TCR) MCL 6 1995
Interim Enhanced Surface Water Treatment Rule TT 4 2006
Nitrate MR 4 1993
Interim Enhanced Surface Water Treatment Rule MR 4 2006
Total Haloacetic Acids (HAA5) MR 3 2024
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 2007
Lead and Copper Rule MR 1 2021
Consumer Confidence Rule Other 1 2024
Revised Total Coliform Rule MON 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 7 of 215 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/24/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 9/24/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/24/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/29/2024 0.0032 µg/L 0.003 µg/L Detected
PFMPA 8/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 8/29/2024 0.0047 µg/L 0.003 µg/L Detected
PFPeA 8/29/2024 0.0086 µg/L 0.003 µg/L Detected
PFPeS 8/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/29/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/29/2024 0.0062 µg/L 0.003 µg/L Detected
PFEESA 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 8/29/2024 0.0092 µg/L 0.005 µg/L Detected
6:2 FTS 8/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 8/29/2024 0.0066 µg/L 0.004 µg/L Detected
11Cl-PF3OUdS 8/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/20/2024 <9 µg/L 9 µg/L Not Detected
PFHpA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for MARCO ISLAND UTILITIES (CITY OF).

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID FL5110183 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Florida Drinking Water Authority

Florida Department of Environmental Protection — Drinking Water Program is the primacy agency that licenses and inspects MARCO ISLAND UTILITIES (CITY OF) under EPA-delegated authority.

Open FL regulator portal

Source: Florida Department of Environmental Protection — Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 TTHM MR 6 SDWIS / FL5110183 / 2950
2024 Total Haloacetic Acids (HAA5) MR 3 SDWIS / FL5110183 / 2456
2024 Consumer Confidence Rule Other 1 SDWIS / FL5110183 / 7000
2024 Revised Total Coliform Rule MON 1 SDWIS / FL5110183 / 8000
2021 Lead and Copper Rule MR 1 SDWIS / FL5110183 / 5000
2012 Coliform (TCR) MR 10 SDWIS / FL5110183 / 3100
2007 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 SDWIS / FL5110183 / 0600
2006 Interim Enhanced Surface Water Treatment Rule TT 4 SDWIS / FL5110183 / 0300
2006 Interim Enhanced Surface Water Treatment Rule MR 4 SDWIS / FL5110183 / 0300
1995 Coliform (TCR) MCL 6 SDWIS / FL5110183 / 3100
1993 Nitrate MR 4 SDWIS / FL5110183 / 1040

How MARCO ISLAND UTILITIES (CITY OF) Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric MARCO ISLAND UTILITIES (CITY OF) Florida avg Federal benchmark
Total violations 52 36.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 4.8 Indicates a contaminant exceeded a federal MCL
PFAS detection 7 compounds 54.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 31,830 4,395 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,093 regulated public water systems in Florida.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is MARCO ISLAND UTILITIES (CITY OF) water safe to drink? ▼
MARCO ISLAND UTILITIES (CITY OF) (PWS ID: FL5110183) has 52 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 7 PFAS compounds found. This system serves 31,830 people using Surface Water sources.
How many people does MARCO ISLAND UTILITIES (CITY OF) serve? ▼
MARCO ISLAND UTILITIES (CITY OF) serves 31,830 people in MARCO ISLAND, Florida. It is a Private-owned system using Surface Water water sources with 10,301 service connections.
What type of violations does MARCO ISLAND UTILITIES (CITY OF) have? ▼
MARCO ISLAND UTILITIES (CITY OF) has 52 total violations: 10 health-based violations (MCL exceedances or treatment failures), 31 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MARCO ISLAND UTILITIES (CITY OF) water? ▼
Yes. UCMR5 testing detected 7 PFAS compounds in MARCO ISLAND UTILITIES (CITY OF)'s water supply: PFHpA, PFBS, PFPeA, PFHxA, PFBA, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does MARCO ISLAND UTILITIES (CITY OF) use? ▼
MARCO ISLAND UTILITIES (CITY OF) uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial