The latest test found low bacteria levels (35 or fewer per 100 mL).
Latest test
Oct 26, 2026 (10 days ago)
Enterococci
<10 per 100 mL
Past 12 months
14 of 18 tests Good, 2 Poor
Results over time
Enterococci per 100 mL, log scale. Lines mark the Moderate (36) and Poor (71) levels.
Recent tests
Date
Enterococci per 100 mL
Rating
Oct 26, 2026
<10
Good
Oct 12, 2026
no result
No result
Sep 28, 2026
52
Moderate
Sep 14, 2026
10
Good
Aug 31, 2026
30
Good
Aug 17, 2026
10
Good
Aug 3, 2026
10
Good
Jul 20, 2026
10
Good
Jul 7, 2026
<10
Good
Jun 22, 2026
20
Good
Jun 8, 2026
<10
Good
May 28, 2026
109
PoorAdvisory
May 26, 2026
173
Poor
May 11, 2026
50
Moderate
Apr 27, 2026
<10
Good
Apr 13, 2026
<10
Good
The long view
The state has 912 tests on record for Rocky Bayou State Park over 27 years, starting July 2000.
In the last 10 years, 32 tests of 197 (16%) came back Poor, well above the rate for all Florida sampled beaches (6.1%).
Bacteria levels usually jump after heavy rain, when stormwater washes to the shore, and drop again within a day or two.
Sampling site ROCKY BAYOU STATE PARK (Okaloosa County, EPA beach ID FL986946), at 30.50096, -86.43113. Results are from the Florida Department of Health's Healthy Beaches Program; years before 2026 come from the state's submissions to EPA's Water Quality Portal.