Walton Rocks Beach Water Quality

St. Lucie County, Florida

Moderate

The latest test found moderate bacteria levels (36 to 70 per 100 mL). Swimming is allowed; people with weak immune systems may want to wait.

Latest test
Oct 28, 2026 (8 days ago)
Enterococci
64 per 100 mL
Past 12 months
21 of 24 tests Good, 1 Poor

Results over time

101001000Nov 15, 2021: 10 per 100 mL (Good)Nov 29, 2021: 10 per 100 mL (Good)Dec 13, 2021: 10 per 100 mL (Good)Dec 27, 2021: 10 per 100 mL (Good)Jan 10, 2022: 10 per 100 mL (Good)Jan 24, 2022: 10 per 100 mL (Good)Feb 7, 2022: 10 per 100 mL (Good)Feb 21, 2022: 10 per 100 mL (Good)Mar 7, 2022: 10 per 100 mL (Good)Mar 21, 2022: 10 per 100 mL (Good)Apr 4, 2022: 10 per 100 mL (Good)Apr 18, 2022: 10 per 100 mL (Good)May 2, 2022: 10 per 100 mL (Good)May 16, 2022: 10 per 100 mL (Good)May 31, 2022: 10 per 100 mL (Good)Jun 13, 2022: 10 per 100 mL (Good)Jun 27, 2022: 10 per 100 mL (Good)Jul 11, 2022: 10 per 100 mL (Good)Jul 25, 2022: 10 per 100 mL (Good)Aug 9, 2022: 10 per 100 mL (Good)Aug 22, 2022: 10 per 100 mL (Good)Sep 6, 2022: 10 per 100 mL (Good)Sep 19, 2022: 10 per 100 mL (Good)Oct 3, 2022: 10 per 100 mL (Good)Oct 17, 2022: 10 per 100 mL (Good)Oct 31, 2022: 10 per 100 mL (Good)Dec 27, 2022: 10 per 100 mL (Good)Jan 9, 2023: 10 per 100 mL (Good)Jan 24, 2023: 10 per 100 mL (Good)Feb 6, 2023: 10 per 100 mL (Good)Feb 20, 2023: 10 per 100 mL (Good)Mar 6, 2023: 10 per 100 mL (Good)Mar 21, 2023: 10 per 100 mL (Good)Apr 3, 2023: 10 per 100 mL (Good)Apr 17, 2023: 10 per 100 mL (Good)May 1, 2023: 10 per 100 mL (Good)May 15, 2023: 10 per 100 mL (Good)May 30, 2023: 10 per 100 mL (Good)Jun 12, 2023: 10 per 100 mL (Good)Jun 26, 2023: 10 per 100 mL (Good)Jul 10, 2023: 10 per 100 mL (Good)Jul 24, 2023: 10 per 100 mL (Good)Aug 7, 2023: 10 per 100 mL (Good)Aug 21, 2023: 10 per 100 mL (Good)Sep 5, 2023: 10 per 100 mL (Good)Sep 18, 2023: 10 per 100 mL (Good)Oct 2, 2023: 10 per 100 mL (Good)Oct 16, 2023: 10 per 100 mL (Good)Oct 30, 2023: 10 per 100 mL (Good)Nov 13, 2023: 10 per 100 mL (Good)Nov 27, 2023: 10 per 100 mL (Good)Dec 11, 2023: 10 per 100 mL (Good)Dec 18, 2023: 20 per 100 mL (Good)Jan 8, 2024: 10 per 100 mL (Good)Jan 22, 2024: 10 per 100 mL (Good)Feb 6, 2024: 10 per 100 mL (Good)Feb 19, 2024: 10 per 100 mL (Good)Mar 4, 2024: 10 per 100 mL (Good)Mar 18, 2024: 10 per 100 mL (Good)Apr 1, 2024: 10 per 100 mL (Good)Apr 15, 2024: 10 per 100 mL (Good)Apr 29, 2024: 10 per 100 mL (Good)May 13, 2024: 10 per 100 mL (Good)May 28, 2024: 111 per 100 mL (Poor)May 30, 2024: 10 per 100 mL (Good)Jun 10, 2024: 10 per 100 mL (Good)Jun 24, 2024: 10 per 100 mL (Good)Jul 8, 2024: 10 per 100 mL (Good)Jul 22, 2024: 10 per 100 mL (Good)Aug 5, 2024: 10 per 100 mL (Good)Aug 19, 2024: 10 per 100 mL (Good)Sep 3, 2024: 10 per 100 mL (Good)Sep 16, 2024: 10 per 100 mL (Good)Sep 30, 2024: 10 per 100 mL (Good)Oct 14, 2024: 10 per 100 mL (Good)Oct 28, 2024: 10 per 100 mL (Good)Nov 12, 2024: 10 per 100 mL (Good)Nov 25, 2024: 10 per 100 mL (Good)Dec 9, 2024: 10 per 100 mL (Good)Dec 30, 2024: 10 per 100 mL (Good)Jan 13, 2025: 10 per 100 mL (Good)Jan 27, 2025: 10 per 100 mL (Good)Feb 10, 2025: 10 per 100 mL (Good)Feb 24, 2025: 10 per 100 mL (Good)Mar 10, 2025: 10 per 100 mL (Good)Mar 24, 2025: 10 per 100 mL (Good)Apr 7, 2025: 10 per 100 mL (Good)Apr 21, 2025: 10 per 100 mL (Good)May 5, 2025: 10 per 100 mL (Good)May 19, 2025: 10 per 100 mL (Good)Jun 2, 2025: 10 per 100 mL (Good)Jun 16, 2025: 10 per 100 mL (Good)Jun 30, 2025: 10 per 100 mL (Good)Jul 14, 2025: 10 per 100 mL (Good)Jul 28, 2025: 10 per 100 mL (Good)Aug 11, 2025: 10 per 100 mL (Good)Aug 25, 2025: 10 per 100 mL (Good)Sep 8, 2025: 10 per 100 mL (Good)Sep 22, 2025: 10 per 100 mL (Good)Oct 6, 2025: 10 per 100 mL (Good)Oct 20, 2025: 10 per 100 mL (Good)Nov 3, 2025: 10 per 100 mL (Good)Nov 17, 2025: 10 per 100 mL (Good)Dec 1, 2025: 10 per 100 mL (Good)Dec 15, 2025: 10 per 100 mL (Good)Dec 29, 2025: 10 per 100 mL (Good)Feb 23, 2026: 10 per 100 mL (Good)Mar 9, 2026: 10 per 100 mL (Good)Mar 23, 2026: 10 per 100 mL (Good)Apr 6, 2026: 10 per 100 mL (Good)Apr 20, 2026: 10 per 100 mL (Good)May 4, 2026: 10 per 100 mL (Good)May 18, 2026: 10 per 100 mL (Good)Jun 1, 2026: 10 per 100 mL (Good)Jun 15, 2026: 10 per 100 mL (Good)Jun 29, 2026: 10 per 100 mL (Good)Jul 13, 2026: 10 per 100 mL (Good)Jul 20, 2026: 10 per 100 mL (Good)Aug 3, 2026: 10 per 100 mL (Good)Aug 17, 2026: 10 per 100 mL (Good)Aug 31, 2026: 64 per 100 mL (Moderate)Sep 14, 2026: 10 per 100 mL (Good)Sep 28, 2026: 10 per 100 mL (Good)Oct 12, 2026: 10 per 100 mL (Good)Oct 26, 2026: 288 per 100 mL (Poor)Oct 28, 2026: 64 per 100 mL (Moderate)20222023202420252026
Enterococci per 100 mL, log scale. Lines mark the Moderate (36) and Poor (71) levels.

Recent tests

DateEnterococci per 100 mLRating
Oct 28, 202664Moderate
Oct 26, 2026288Poor
Oct 12, 202610Good
Sep 28, 202610Good
Sep 14, 202610Good
Aug 31, 202664Moderate
Aug 17, 202610Good
Aug 3, 202610Good
Jul 20, 202610Good
Jul 13, 202610Good
Jun 29, 202610Good
Jun 15, 202610Good
Jun 1, 202610Good
May 18, 202610Good
May 4, 202610Good
Apr 20, 202610Good

The long view

The state has 941 tests on record for Walton Rocks Beach over 27 years, starting August 2000. In the last 10 years, 8 tests of 286 (3%) came back Poor, below 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.

Nearby sampled beaches

About this site

Sampling site WALTON ROCKS BEACH (St. Lucie County, EPA beach ID FL743759), at 27.33650, -80.22650. 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.