Pinellas County · Tampa Bay Area · Gulf Coast

Sand Key Beach water quality history

This page is for swimmers who want the deeper historical story at Sand Key Beach: recent readings, spike frequency, and how often the beach has slipped into poor territory.

GOOD Latest sample: May 11, 2026 4 CFU/100mL 0% poor-sample history
Main Beach Page History Alternatives After Rain Recent Spikes

Current picture

GOOD on the latest sample at 4 CFU/100mL.

Long-term context

0 poor samples and 1 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

35.4
70.5
13
Oct
17
Oct
17
Oct
15
Nov
18
Nov
13
Dec
13
Dec
15
Jan
59
Jan
13
Feb
13
Feb
18
Mar

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 →

Caladesi Island State Park

Pinellas County · Gulf Coast · 6 mi away

GOOD
Tested May 11, 2026 4 CFU/100mL

No poor samples in the displayed history · risk 0%

Honeymoon Island State Park

Pinellas County · Gulf Coast · 8 mi away

GOOD
Tested May 11, 2026 4 CFU/100mL

No poor samples in the displayed history · risk 0%

St. Pete Beach

Pinellas County · Gulf Coast · 17 mi away

GOOD
Tested May 11, 2026 4 CFU/100mL

No poor samples in the displayed history · risk 0%

Madeira Beach

Pinellas County · Gulf Coast · 11 mi away

GOOD
Tested May 11, 2026 8 CFU/100mL

No poor samples in the displayed history · risk 0%

Treasure Island Beach

Pinellas County · Gulf Coast · 13 mi away

GOOD
Tested May 11, 2026 8 CFU/100mL

No poor samples in the displayed history · risk 0%

Indian Rocks Beach

Pinellas County · Gulf Coast · 5 mi away

GOOD
Tested May 11, 2026 4 CFU/100mL

Last poor sample Oct 31 · risk 8%

Recent Warning-Sign Samples

Full history →

January 29, 2026

59 CFU/100mL · MODERATE

MODERATE

Keep Exploring Nearby

Pinellas County Tampa Bay Area Beaches near Tampa Beaches near St. Petersburg Beaches near Clearwater

How To Use This Page

This page is for swimmers who want the deeper historical story at Sand Key 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 Sand Key Beach beach page.

Data from FL DOH Healthy Beaches Program. This is an independent project — check with Florida DOH for official conditions.