Collier County·Naples / Marco Island·Gulf Coast
Marco Island Beach water quality history
This page gives swimmers deeper historical context for Marco Island Beach: recent readings, spike frequency, and how often the displayed station history has reached poor territory.
Current picture
GOOD on the latest sample at 10 CFU/100mL.
Recent-sample context
0 poor samples and 0 non-good samples in the displayed history.
Rain still matters
Stormwater can make this page stale faster than the normal testing schedule, especially after heavy rain.
Poor samples shown
0
out of 12 displayed samples.
Latest poor sample
No poor sample in the displayed history
This is the last time the displayed history shows a poor result.
Displayed-sample risk
0%
share of poor samples in the displayed history.
Water Quality History — Latest Samples
Sample source: Marco Island Beach
Values in CFU/100mL. Green = Good (≤35.4), Yellow = Moderate (35.5–70.4), Red = Poor (≥70.5)
Nearby Beaches With Lower Risk
Nearby alternatives →Naples Beach
Collier County · Gulf Coast · 15 mi away
No poor samples in the displayed history · risk 0%
Barefoot Beach Preserve
Collier County · Gulf Coast · 24 mi away
No poor samples in the displayed history · risk 0%
Delnor-Wiggins Pass State Park
Collier County · Gulf Coast · 25 mi away
No poor samples in the displayed history · risk 0%
Bonita Beach
Lee County · Gulf Coast · 28 mi away
No poor samples in the displayed history · risk 0%
Fort Myers Beach
Lee County · Gulf Coast · 38 mi away
Nearby-station context from LYNN HALL PARK, about 0.6 mi away; not an exact-beach sample.
Nearby-station data · No poor samples in the displayed history · risk 0%
Lovers Key State Park
Lee County · Gulf Coast · 32 mi away
No poor samples in the displayed history · risk 0%
Recent Warning-Sign Samples
Full history →Keep Exploring Nearby
How To Use This Page
This page gives swimmers deeper historical context for Marco Island Beach: recent readings, spike frequency, and how often the displayed station history has reached poor territory.
Use this view as a decision aid, not a guarantee. The latest sample, visible runoff, and recent weather still matter more than any single list or chart.
If you want the main same-day answer instead, go back to the Marco Island Beach beach page.
Data from FL DOH Healthy Beaches Program. This is an independent project, not official real-time clearance — check with Florida DOH for official conditions.