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 for the Period of Record

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

View Data Source Details

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Note: Trends were prepared on August 20, 2019 using the latest available data. Results presented replace all previous editions.

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 a Microsoft Access database and multiple PDF maps, and R script.

Download (ZIP, ~ 13MB)

Note: Trends were prepared on August 20, 2019 using the latest available data. Results presented replace all previous editions.

Map Legend

  • Increasing Trend, Larger Rate Improving
  • Increasing Trend, Smaller Rate Improving
  • No Trend
  • Decreasing Trend, Smaller Rate Declining
  • Decreasing Trend, Larger Rate Declining
  • CHNEP Watershed Boundaries

Map Legend

  • Increasing Trend, Larger Rate Declining
  • Increasing Trend, Smaller Rate Declining
  • No Trend
  • Decreasing Trend, Smaller Rate Improving
  • Decreasing Trend, Larger Rate Improving
  • CHNEP Watershed Boundaries

Map Legend

  • Increasing Trend, Larger Rate
  • Increasing Trend, Smaller Rate
  • No Trend
  • Decreasing Trend, Smaller Rate
  • Decreasing Trend, Larger Rate
  • CHNEP Watershed Boundaries

Contacts

For more information, please contact the Coastal & Heartland National Estuary Partnership:

Data Source Summary

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

Datasource Period of Record Data Last Loaded Max Year
Cape Coral Canal Watch (CANALWATCH_WQ) 5/3/1995 - 3/3/2021 6/8/2021 2019
Charlotte Harbor Estuaries Volunteer Water Quality Monitoring Network (CHEVWQMN_WQ) 11/4/1996 - 3/1/2021 5/24/2021 2019
EPC Monthly Routine Water Monitoring (EPC_ROUTINE_MONITORING) 1/3/1972 - 3/11/2020 3/15/2020 2019
Water quality data collected by the City of Lakeland (LAKELAND_WQ) 8/10/1966 - 6/8/2021 7/1/2021 2019
Lee County Pondwatch (LEE_PONDWATCH_WQ) 1/1/2000 - 12/1/2019 3/24/2020 2019
Lee County Environmental Laboratory (LEE_WQ) 5/10/1989 - 1/29/2020 7/24/2021 2019
Polk County Parks & Natural Resources Division (POLKCO_NRD_WQ) 7/24/1984 - 6/8/2021 7/1/2021 2019
Sarasota County Coastal Creeks (SARASOTA_COASTALCREEK_WQ) 2/24/1998 - 5/20/2021 7/19/2021 2019
Sarasota County Environmental Services Department Sampling Data (SARASOTAES_WQ) 2/24/1998 - 6/2/2021 8/1/2021 2019
SWFWMD Hydrologic Data Section Data (SWFWMD_HYDRO) 5/1/1930 - 7/30/2021 7/31/2021 2019
USGS National Water Information System (USGS_NWIS) 10/25/1907 - 7/31/2021 7/31/2021 2019
FDEP - Charlotte Harbor Aquatic Preserves (WIN_21FLCHAR) 6/5/2017 - 4/5/2021 6/22/2021 2019
FDEP - South Regional Operations Center (WIN_21FLFTM) 3/15/2012 - 5/13/2021 6/22/2021 2017
FDEP Watershed Monitoring Section (WIN_21FLGW) 2/6/2011 - 4/14/2021 6/22/2021 2019
Florida LAKEWATCH (WIN_21FLKWAT) 4/13/2017 - 3/12/2021 6/22/2021 2019
Manatee County Environmental Management Sampling Data (WIN_21FLMANA) 1/9/2018 - 12/15/2020 6/22/2021 2019
City of Sanibel Natural Resources Department (WIN_21FLSBL) 1/12/2017 - 3/23/2021 6/22/2021 2019
Southwest Florida Water Management District (WIN_21FLSWFD) 1/1/1991 - 12/28/2020 6/23/2021 2019
FDEP - Southwest Regional Operations Center (WIN_21FLTPA) 9/23/2013 - 2/8/2021 6/22/2021 2018
City of Cape Coral (WIN_CAPECRD) 4/4/2017 - 3/17/2021 6/22/2021 2019
Coastal & Heartland National Estuary Partnership (Matlacha Pass) (WIN_CHNEPMP) 1/24/2017 - 3/23/2021 6/22/2021 2019
Peace River Manasota Regional Water Supply Authority (WIN_FLPRMRWS) 1/5/2017 - 12/21/2020 6/22/2021 2019