Blue Heron 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
42 per 100 mL
Past 12 months
18 of 20 tests Good, 1 Poor

Results over time

101001000May 4, 2026: 20 per 100 mL (Good)May 11, 2026: 10 per 100 mL (Good)May 18, 2026: 10 per 100 mL (Good)May 26, 2026: 10 per 100 mL (Good)Jun 1, 2026: 10 per 100 mL (Good)Jun 8, 2026: 10 per 100 mL (Good)Jun 15, 2026: 10 per 100 mL (Good)Jun 22, 2026: 10 per 100 mL (Good)Jun 29, 2026: 10 per 100 mL (Good)Jul 7, 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: 20 per 100 mL (Good)Aug 17, 2026: 10 per 100 mL (Good)Aug 31, 2026: 31 per 100 mL (Good)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: 254 per 100 mL (Poor)Oct 28, 2026: 42 per 100 mL (Moderate)
Enterococci per 100 mL, log scale. Lines mark the Moderate (36) and Poor (71) levels.

Recent tests

DateEnterococci per 100 mLRating
Oct 28, 202642Moderate
Oct 26, 2026254Poor
Oct 12, 202610Good
Sep 28, 202610Good
Sep 14, 202610Good
Aug 31, 202631Good
Aug 17, 202610Good
Aug 3, 202620Good
Jul 20, 202610Good
Jul 13, 202610Good
Jul 7, 202610Good
Jun 29, 202610Good
Jun 22, 202610Good
Jun 15, 202610Good
Jun 8, 202610Good
Jun 1, 202610Good

The long view

The state has 20 tests on record for Blue Heron Beach over 1 year, starting May 2026. In the last 10 years, 1 test of 20 (5%) came back Poor, close to 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 BLUE HERON BEACH (St. Lucie County, EPA beach ID ), at 27.43727, -80.27876. 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.