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
OCT-DEC 2024	875 ug/l	130.4 ug/l	43 ug/l	0.03 mg/l	3	9
JUL-SEP 2024	718 ug/l	105.3 ug/l	89 ug/l	0.03 mg/l	4	12
APR-JUN 2024	874 ug/l	103.4 ug/l	114 ug/l	0.04 mg/l	4	10
JAN-MAR 2024	1,005 ug/l	124.9 ug/l	53 ug/l	0.03 mg/l	5	13
OCT-DEC 2023	1,162 ug/l	80.0 ug/l	57 ug/l	0.03 mg/l	4	12
JUL-SEP 2023	889 ug/l	85.8 ug/l	69 ug/l	0.02 mg/l	5	15
APR-JUN 2023	734 ug/l	132.0 ug/l	104 ug/l	0.05 mg/l	5	13
JAN-MAR 2023	699 ug/l	133.3 ug/l	67 ug/l	0.03 mg/l	5	15
Five Year Seasonal Graph	Graph	Graph	Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): FDEP Historic Data from Legacy STORET, Seminole County Legacy Storet Data, Seminole County Water Quality Data, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, USGS National Water Information System, FDEP - Central Regional Operations Center, 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
JAN-MAR 2025	942 ug/l		40 ug/l		4	4
OCT-DEC 2024	706 ug/l	24.0 ug/l	27 ug/l	0.04 mg/l	19	19
JUL-SEP 2024	921 ug/l	24.0 ug/l	25 ug/l	0.01 mg/l	18	18
APR-JUN 2024	853 ug/l	24.0 ug/l	28 ug/l	0.01 mg/l	19	19
JAN-MAR 2024	772 ug/l	49.3 ug/l	26 ug/l	0.01 mg/l	43	67
OCT-DEC 2023	755 ug/l	24.0 ug/l	24 ug/l	0.01 mg/l	42	70
JUL-SEP 2023	680 ug/l	24.0 ug/l	31 ug/l	0.01 mg/l	50	93
APR-JUN 2023	678 ug/l	24.0 ug/l	24 ug/l	0.01 mg/l	48	101
JAN-MAR 2023	689 ug/l	24.0 ug/l	28 ug/l	0.01 mg/l	49	111
Five Year Seasonal Graph	Graph	Graph	Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): Casselberry Water Quality Data, 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, Seminole County Water Quality Data, SJRWMD Water Quality Data, City of Altamonte Springs, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, City of Casselberry, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, FDEP - Watershed Assessment Section

River	Flows Whole River Range	Flows Data by Segment	Levels Whole River Range	Levels Data By Segment
Gee Creek	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