Is Naples Water Dept water safe to drink?

Naples Water Dept (PWS ID: FL5110198) has 46 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 5 PFAS compounds found. EPA SDWIS lists this system's service population as 82,000 people using Groundwater sources.

How many people does Naples Water Dept serve?

EPA SDWIS reports that Naples Water Dept serves 82,000 people (this public water system's service population, not the municipal population of Naples or any other city). It is a Local-owned system using Groundwater water sources with 16,400 service connections. The operator address is listed in Naples, Florida.

What type of violations does Naples Water Dept have?

Naples Water Dept has 46 total violations: 8 health-based violations (MCL exceedances or treatment failures), 12 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Naples Water Dept water?

Yes. UCMR5 testing detected 5 PFAS compounds in Naples Water Dept's water supply: PFOS, PFBS, PFOA, PFBA, PFPeA. PFAS are persistent "forever chemicals" that do not break down in the environment.

What water source does Naples Water Dept use?

Naples Water Dept uses Groundwater 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.

Where does Naples Water Dept sit among U.S. public water systems?

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Naples Water Dept ranks #621 of 29,740 by people served, and #56 of 905 in Florida. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

How does Naples Water Dept's violation count compare nationally?

Naples Water Dept has 46 recorded EPA SDWIS violations, fewer than 45% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 54% of that cohort has fewer violations than Naples Water Dept. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

States → Florida

Community Water System · PWS FL5110198

Naples Water Dept

Operator location Naples, Florida - UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)) on this PWS; SDWIS lists 46 violations and 82,000 people served.

Compiled by PlainWater · May 15, 2026

82,000
People served (this PWS) Larger third of systems: 46
EPA violations (this PWS) Middle third of systems: 8
Health-based (this PWS) Middle third by health-based share: 5 PFAS
UCMR5 (this PWS) Upper third of PFAS-detected systems

Follow published updates (RSS)

Naples Water Dept standing, mid SDWIS violation third

UCMR5 detected 5 PFAS compounds - upper-third PFAS panel (> 4 compounds). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 17% is middle-third health share (≤ 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #621 of 29,740 among systems serving 500+.

The verdict

Naples Water Dept lands in the middle third by violation volume (46), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (82,000; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 17% (middle-third health share (≤ 23%)). UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)).

#621 of 29,740
Population · /systems: #56 of 905
Population · FL: 46
Total EPA violations on record: 17%
Health-based (MCL / treatment failure)

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

PFAS Detected

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

Water Safety Score

31/100

Naples Water Dept

Based on EPA SDWIS violation history and UCMR5 PFAS testing only, not water taste, odor, infrastructure age, or contaminants outside the federally tracked set.

Health-based violations F

EPA SDWIS health-based violations on record (MCL, MRDL, treatment technique)

Monitoring & reporting violations F

Non-health SDWIS violations (monitoring, reporting, and other compliance)

PFAS contamination F

0.0110 µg/L

Highest PFAS compound level detected in UCMR5 testing

System Details

System Type: Community
Owner Type: Local
Connections: 16,400
County: Collier
School/Daycare: No
MCL Violations: 8
Monitoring Violations: 12
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
E. COLI	MR	10	2024
Coliform (TCR)	MCL	8	2014
Revised Total Coliform Rule	RPT	2	2024
Coliform (TCR)	MR	1	1991
Revised Total Coliform Rule	MON	1	2023

Violation Count vs. the National Corpus

Naples Water Dept has 46 recorded EPA violations, 54% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 45% carry more. 17% of this system's own violations are health-based (8 of 46), and it ranks #621 of 29,740 by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

46 Around the middle fewer violations than 45% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

How many violations vs. how serious, among peer systems

Naples Water Dept plotted against 29 peer public water systems (500+ people served), by total violation count (x) and the share of those violations that are health-based (y). The crosshair sits at this sample's own median on each axis. A high violation count does not automatically mean a serious record: most monitoring and reporting violations are minor, not health-based.

30 public water systems (500+ people served), EPA SDWIS current release.

How to read this

Each dot is one public water system; the highlighted dot is Naples Water Dept. A system to the right has more recorded violations; a system higher up has a larger share of those violations classified health-based rather than monitoring or reporting.

Rare but serious: few violations, but most of them are health-based.
Frequent, mostly paperwork: many violations, but mostly monitoring or reporting, not health-based.
Clean record: below-median on both counts, the tinted corner.

View all 30 systems as a list

City of Ballinger: 372 violations, 85% health-based
Nooksack Valley Water Association: 16 violations, 31% health-based
Montgomery Co RWD 12: 7 violations, 29% health-based
Irvin Water District #6: 11 violations, 27% health-based
Ticonderoga WD: 47 violations, 26% health-based
Pine Valley Plantation: 37 violations, 24% health-based
McLouth, City Of: 29 violations, 17% health-based
Naples Water Dept: 46 violations, 17% health-based (this system)
Kipling Oaks 1: 25 violations, 16% health-based
South Deerfield Water Supply District: 96 violations, 16% health-based
Sunset Ridge Water District: 82 violations, 15% health-based
Orange Water Dept: 136 violations, 14% health-based
Mount Pleasant Water Sys #1: 167 violations, 11% health-based
Lake Gibson Estates: 42 violations, 2% health-based
Benson Culinary Improvement District: 212 violations, 1% health-based
Conemaugh Twp Muni Auth: 567 violations, 1% health-based
Miccosukee Service Plaza: 0 violations, 0% health-based
Brazoria - Fort Bend Counties MUD 3: 0 violations, 0% health-based
Tanglewilde Thompson Place 600: 2 violations, 0% health-based
Center Water Co: 5 violations, 0% health-based
Spring Mills Elem School/Hvs: 9 violations, 0% health-based
Great Bend Industrial Park: 14 violations, 0% health-based
Glen Park Village: 19 violations, 0% health-based
Camp Is-Sho-Da: 22 violations, 0% health-based
Hamilton: 33 violations, 0% health-based
Town of Welaka: 54 violations, 0% health-based
Township of Blairstown Dpw: 61 violations, 0% health-based
McIntosh Water & Fire Pro Authority: 71 violations, 0% health-based
Clarkdale Municipal Water System: 114 violations, 0% health-based
Eureka Water Association: 273 violations, 0% health-based

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 7 of 58 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
NMeFOSAA	2/12/2024	<6.00 ppt	6.00 ppt	Not Detected
NEtFOSAA	2/12/2024	<5.00 ppt	5.00 ppt	Not Detected
PFTrDA	2/12/2024	<7.00 ppt	7.00 ppt	Not Detected
PFTA	2/12/2024	<8.00 ppt	8.00 ppt	Not Detected
PFHxS	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
PFDoA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
PFOS	12/6/2023	11.00 ppt	4.00 ppt	Detected
PFBS	12/6/2023	3.70 ppt	3.00 ppt	Detected
PFHpA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
11Cl-PF3OUdS	12/6/2023	<5.00 ppt	5.00 ppt	Not Detected
PFNA	12/6/2023	<4.00 ppt	4.00 ppt	Not Detected
PFOA	12/6/2023	4.20 ppt	4.00 ppt	Detected
PFDA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
PFHxA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
ADONA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
9Cl-PF3ONS	12/6/2023	<2.00 ppt	2.00 ppt	Not Detected
PFUnA	12/6/2023	<2.00 ppt	2.00 ppt	Not Detected
HFPO-DA	12/6/2023	<5.00 ppt	5.00 ppt	Not Detected
PFBA	12/6/2023	5.20 ppt	5.00 ppt	Detected
6:2 FTS	12/6/2023	<5.00 ppt	5.00 ppt	Not Detected
4:2 FTS	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
8:2 FTS	12/6/2023	<5.00 ppt	5.00 ppt	Not Detected
PFPeA	12/6/2023	5.10 ppt	3.00 ppt	Detected
PFMBA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
PFEESA	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
NFDHA	12/6/2023	<20.00 ppt	20.00 ppt	Not Detected
PFPeS	12/6/2023	<4.00 ppt	4.00 ppt	Not Detected
PFHpS	12/6/2023	<3.00 ppt	3.00 ppt	Not Detected
PFMPA	12/6/2023	<4.00 ppt	4.00 ppt	Not Detected
PFTA	10/30/2023	<8.00 ppt	8.00 ppt	Not Detected
PFTrDA	10/30/2023	<7.00 ppt	7.00 ppt	Not Detected
NEtFOSAA	10/30/2023	<5.00 ppt	5.00 ppt	Not Detected
NMeFOSAA	10/30/2023	<6.00 ppt	6.00 ppt	Not Detected
PFPeA	10/16/2023	3.10 ppt	3.00 ppt	Detected
PFBA	10/16/2023	<5.00 ppt	5.00 ppt	Not Detected
6:2 FTS	10/16/2023	<5.00 ppt	5.00 ppt	Not Detected
4:2 FTS	10/16/2023	<3.00 ppt	3.00 ppt	Not Detected
8:2 FTS	10/16/2023	<5.00 ppt	5.00 ppt	Not Detected
PFMPA	10/16/2023	<4.00 ppt	4.00 ppt	Not Detected
HFPO-DA	10/16/2023	<5.00 ppt	5.00 ppt	Not Detected
9Cl-PF3ONS	10/16/2023	<2.00 ppt	2.00 ppt	Not Detected
PFMBA	10/16/2023	<3.00 ppt	3.00 ppt	Not Detected
NFDHA	10/16/2023	<20.00 ppt	20.00 ppt	Not Detected
PFPeS	10/16/2023	<4.00 ppt	4.00 ppt	Not Detected
PFHpS	10/16/2023	<3.00 ppt	3.00 ppt	Not Detected
PFBS	10/16/2023	<3.00 ppt	3.00 ppt	Not Detected
PFEESA	10/16/2023	<3.00 ppt	3.00 ppt	Not Detected
11Cl-PF3OUdS	10/16/2023	<5.00 ppt	5.00 ppt	Not Detected
PFUnA	10/16/2023	<2.00 ppt	2.00 ppt	Not Detected
PFHxA	10/16/2023	<3.00 ppt	3.00 ppt	Not Detected

UCMR5 PFAS record for Naples Water Dept

Open EPA SDWIS federal reports for PWS FL5110198 to cross-check UCMR5 detections and violation codes; state primacy agencies enforce the Safe Drinking Water Act locally.

EPA SDWIS · PWS FL5110198 FL primacy agency

Sources: EPA SDWIS · Florida Department of Environmental Protection, Drinking Water Program

Nationwide peers

46 violations · 82,000 served: nearest cross-state SDWIS matches.

Cross-state systems near this violation count

Nearest cross-state community systems (500+ served) by total SDWIS violations on record.

4 peers

Cross-state systems with similar served population

Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).

4 peers

What to do with Naples Water Dept

Use this system's EPA-reported record as a starting filter, not a final verdict.

See how every tracked system in Florida compares on the same EPA violation measures. Florida systems
Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
Find and compare another public water system by name or PWSID. Search systems

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.