Water Quality Trends

Explore short- and long-term trends for those water quality parameters that are most useful in evaluating the extent of nutrient pollution.

Total Nitrogen - Period of Record (All Available Data)

The map below shows the trend being experienced at the long-term monitoring stations spread throughout the Orange County area.

View Data Details

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Note: Trends were prepared on July 29, 2022 using the latest available data.

Download Trend Analysis Output

You can download raw data for your own analysis by clicking on the link below. The data is formatted as a ZIP file containing raw and calculated data, methods documentation, and an R script.

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Note: Trends were prepared on July 29, 2022 using the latest available data.

Map Legend

  • Increasing Trend, Larger Rate Improving
  • Increasing Trend, Smaller Rate Improving
  • No Trend
  • Decreasing Trend, Smaller Rate Declining
  • Decreasing Trend, Larger Rate Declining
  • Orange County Watershed Boundary

Map Legend

  • Increasing Trend, Larger Rate Declining
  • Increasing Trend, Smaller Rate Declining
  • No Trend
  • Decreasing Trend, Smaller Rate Improving
  • Decreasing Trend, Larger Rate Improving
  • Orange County Watershed Boundary

Map Legend

  • Increasing Trend, Larger Rate
  • Increasing Trend, Smaller Rate
  • No Trend
  • Decreasing Trend, Smaller Rate
  • Decreasing Trend, Larger Rate
  • Orange County Watershed Boundary

Contacts

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Agency Summary

Data collected by the following agencies were used in preparation of these reports.

Agency Period of Record Data Last Loaded Max Year
City of Orlando Ambient Surface Water Quality 8/5/1986 - 10/13/2022 11/27/2022 2022
Orange County Surface Water Quality 1/8/1980 - 6/29/2022 11/27/2022 2022