Pinellas County · Tampa Bay Area · Gulf Coast
Treasure Island Beach water quality history
This page is for swimmers who want the deeper historical story at Treasure Island Beach: recent readings, spike frequency, and how often the beach has slipped into poor territory.
Current picture
GOOD on the latest sample at 8 CFU/100mL.
Long-term 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.
Historical risk
0%
share of poor samples in the displayed history.
Water Quality History — Last 12 Months
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 →St. Pete Beach
Pinellas County · Gulf Coast · 3 mi away
No poor samples in the displayed history · risk 0%
Sand Key Beach
Pinellas County · Gulf Coast · 13 mi away
No poor samples in the displayed history · risk 0%
Picnic Island Beach
Hillsborough County · Gulf Coast · 14 mi away
No poor samples in the displayed history · risk 0%
Madeira Beach
Pinellas County · Gulf Coast · 3 mi away
No poor samples in the displayed history · risk 0%
Anna Maria Island Beach
Manatee County · Gulf Coast · 17 mi away
No poor samples in the displayed history · risk 0%
Indian Rocks Beach
Pinellas County · Gulf Coast · 10 mi away
Last poor sample Oct 31 · risk 8%
Recent Warning-Sign Samples
Full history →Keep Exploring Nearby
How To Use This Page
This page is for swimmers who want the deeper historical story at Treasure Island Beach: recent readings, spike frequency, and how often the beach has slipped into 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 Treasure Island Beach beach page.
Data from FL DOH Healthy Beaches Program. This is an independent project — check with Florida DOH for official conditions.