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A86/100

COLLIER COUNTY REGIONAL WTP — Water Quality Report 2026

Serving 215,350 people · Florida

Water Source
Groundwater
County
—
System ID
FL5114069
Violations
11

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

9

Violations (last 5yr)

2

Unresolved

0

Health-Related

TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2025Verify on EPA.gov
TIER 3Resolved

Missed required monitoring deadline

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

When: May 1, 2025Rule: 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: October 1, 2024 – December 10, 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, 2024 – December 10, 2024Rule: Stage 2 DBPREnforcement: 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: April 1, 2024 – January 20, 2024Rule: Total Coliform RuleEnforcement: 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: January 1, 2024 – January 20, 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: 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 3Unresolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2023 – December 31, 2023Verify on EPA.gov

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

Frequently Asked Questions About COLLIER COUNTY REGIONAL WTP

Is COLLIER COUNTY REGIONAL WTP water safe to drink?

COLLIER COUNTY REGIONAL WTP water receives a grade of A (86/100), which is considered excellent. Out of 73 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has COLLIER COUNTY REGIONAL WTP detected?

73 contaminants were tested in COLLIER COUNTY REGIONAL WTP's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does COLLIER COUNTY REGIONAL WTP have any EPA violations?

Yes, COLLIER COUNTY REGIONAL WTP has 11 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, MR.

How many people does COLLIER COUNTY REGIONAL WTP serve?

COLLIER COUNTY REGIONAL WTP serves approximately 215,350 people, Florida. The system provides water to 1 community: Naples.

What type of water does COLLIER COUNTY REGIONAL WTP provide?

COLLIER COUNTY REGIONAL WTP sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is FL5114069.

How does COLLIER COUNTY REGIONAL WTP compare to other utilities in Florida?

COLLIER COUNTY REGIONAL WTP scores 86/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Florida state page for a full comparison of water systems.

Cities Served

Naples