TapSafetyReport
A84/100

Longboat Key Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 7,098 residents · Florida

What's In Longboat Key's Tap Water?

38
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
< 0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

6

Violations (last 5yr)

6

Unresolved

0

Health-Related

TIER 3Unresolved

Monitoring Violation

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

When: June 1, 2025 – June 30, 2025Rule: Total Coliform RuleVerify on EPA.gov
TIER 3Unresolved

Monitoring Violation

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

When: September 1, 2024 – September 30, 2024Rule: Total Coliform RuleVerify on EPA.gov
TIER 3Unresolved

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, 2024 – September 30, 2024Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2024Verify on EPA.gov
TIER 3Unresolved

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, 2024 – September 30, 2024Rule: Stage 2 DBPRVerify on EPA.gov
TIER 3Unresolved

Failed to issue ongoing public notification

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

When: January 1, 2022Rule: Ground Water RuleVerify 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

Water Utility Details

TOWN OF LONGBOAT KEY
Population Served

7,098

Water Source

Purchased Surface Water

System ID

FL6411098

Frequently Asked Questions About Longboat Key Water

Is Longboat Key tap water safe to drink?

Longboat Key, Florida tap water receives a grade of A (84/100), which is considered excellent. Out of 38 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.

What contaminants are in Longboat Key's water?

Of the 38 contaminants tested in Longboat Key's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does Longboat Key have any water quality violations?

Yes, Longboat Key has 13 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, Other. None of these are classified as health-based violations.

Do I need a water filter in Longboat Key?

Longboat Key water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.

Where does Longboat Key's tap water come from?

Longboat Key's drinking water is sourced from purchased surface water and supplied by TOWN OF LONGBOAT KEY. The system serves approximately 7,098 people. Surface water sources include rivers, lakes, and reservoirs.

How often is Longboat Key'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. Longboat Key'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 Longboat Key's water compare to other cities in Florida?

Longboat Key's water quality score of 84/100 earns a grade of A, which is considered excellent. This places Longboat Key among the better-performing water systems in Florida. Visit our Florida state page to see how all cities in the state compare.

What should I do if I'm concerned about Longboat Key's water quality?

If you have concerns about Longboat Key'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 (TOWN OF LONGBOAT KEY) 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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