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2025 Ranking of Concern 38 out of 39
Water Quality Grade 2025
B
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Sanibel Communities for Clean Water > Communities

East Rocks: Coquina Drive

26.43773, -82.11592

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Data Summary
Nutrients
2025 2024 2023
IN 0.0670.2370.166
TN 1.222.051.88
OP 0.0030.0090.055
TP 0.020.030.12
Chl-a 15.724.682
TSI 57.266.273.7
Salinity 13.18.719
DO 4.74.97.5

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The most recent samples from East Rocks: Coquina Drive were taken in 2025, where it ranked 38 out of 39 sites tested that year. In this dataset, a ranking of 1 represents the most impaired site, while 39 represents the least impaired.

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BMPs (Best Management Practices) implemented at East Rocks: Coquina Drive:

No BMPs have been reported at this location yet.

. . . . . = State Criteria: measurements above this line suggest impairment to the waterbody.
Historical Data
Rankings
  • 2025 Ranking: 38 out of 39 sites tested
  • 2024 Ranking: 38 out of 46 sites tested
  • 2023 Ranking: 11 out of 23 sites tested
  • 2022 Ranking: 78 out of 84 sites tested
  • 2020 Ranking: 62 out of 84 sites tested
  • 2018 Ranking: 31 out of 78 sites tested
  • 2016 Ranking: 65 out of 78 sites tested
Water Quality Grade
  • 2025 Grade: B
  • 2024 Grade: C
  • 2023 Grade: D
  • 2022 Grade: B
  • 2020 Grade: C
  • 2018 Grade: D
  • 2016 Grade: C
Most Impaired - Top 5
Least Impaired - Top 5
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