The following data are summarized as seasonal average values for lake and river sampling locations located within the watershed. While these data are useful to serve as a general picture of watershed health, these data must be viewed with caution because these samples have been taken from ecologically different water resources.

Rivers:

Samples from most rivers located in this watershed are averaged as part of these data summaries.

Season	Total Nitrogen	Nitrate (NO3)	Total Phosphorus	Orthophosphate	Number of Sample Stations	Number of Samples
JAN-MAR 2026			76 ug/l		1	3
OCT-DEC 2025			58 ug/l		2	10
JUL-SEP 2025			117 ug/l		2	12
APR-JUN 2025			104 ug/l		2	12
JAN-MAR 2025			103 ug/l		2	12
OCT-DEC 2024			102 ug/l		2	10
JUL-SEP 2024			150 ug/l		2	12
APR-JUN 2024			98 ug/l		2	11
JAN-MAR 2024			48 ug/l		2	12
Five Year Seasonal Graph			Graph
Five Year Graph of All Samples			Graph

Source(s): LAKEWATCH Supplemental Water Quality Sampling, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, FFWCC Legacy Storet Data, Seminole County Legacy Storet Data, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, Orange County Surface Water Quality, St. Johns River Water Management District

Lakes:

Samples from most lakes located in this watershed are averaged as part of these data summaries.

Season	Total Nitrogen	Nitrate (NO3)	Total Phosphorus	Orthophosphate	Number of Sample Stations	Number of Samples
APR-JUN 2024	1,104 ug/l		39 ug/l		1	1
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, Seminole County Legacy Storet Data, Seminole County Water Quality Data, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, FDEP Watershed Monitoring Section

River	Flows Whole River Range	Flows Data by Segment	Levels Whole River Range	Levels Data By Segment
Econlockhatchee River	In the past 30 days Average river flow is slower than it has been historically.	Flows Data Table and Graph	In the past 30 days Average water levels are lower than they have been historically.	Levels Data Table and Graph
Saint Johns River	In the past 30 days Average river flow is slower than it has been historically.	Flows Data Table and Graph	In the past 30 days Average water levels are lower than they have been historically.	Levels Data Table and Graph

Source(s): Not Available

Source(s): Not Available