Charlotte County·Southwest Florida·Gulf Coast

Boca Grande Beach water quality history

This page gives swimmers deeper historical context for Boca Grande Beach: recent readings, spike frequency, and how often the displayed station history has reached poor territory.

GOODLatest sample: October 12, 202610 CFU/100mL17% poor-sample history

Current picture

GOOD on the latest sample at 10 CFU/100mL.

Recent-sample context

2 poor samples and 3 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

2

out of 12 displayed samples.

Latest poor sample

October 5, 2026

This is the last time the displayed history shows a poor result.

Displayed-sample risk

17%

share of poor samples in the displayed history.

Water Quality History — Latest Samples

Sample source: Boca Grande Beach

35.4
70.5
10
Aug
31
Aug
10
Aug
10
Aug
10
Sep
10
Sep
111
Sep
64
Sep
10
Sep
75
Oct
20
Oct
10
Oct

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 →

Recent Warning-Sign Samples

Full history →

October 5, 2026

75 CFU/100mL · POOR

POOR

September 23, 2026

64 CFU/100mL · MODERATE

MODERATE

September 21, 2026

111 CFU/100mL · POOR

POOR

How To Use This Page

This page gives swimmers deeper historical context for Boca Grande 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 Boca Grande 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.