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
JUL-SEP 2026	812 ug/l	96.3 ug/l	55 ug/l	0.02 mg/l	3	6
APR-JUN 2026	986 ug/l	131.8 ug/l	82 ug/l	0.06 mg/l	3	6
JAN-MAR 2026	728 ug/l	99.4 ug/l	62 ug/l	0.03 mg/l	5	10
OCT-DEC 2025	691 ug/l	68.8 ug/l	44 ug/l	0.01 mg/l	4	10
JUL-SEP 2025	774 ug/l	85.0 ug/l	31 ug/l	0.01 mg/l	2	6
APR-JUN 2025	844 ug/l	72.5 ug/l	22 ug/l	0.01 mg/l	2	4
JAN-MAR 2025	695 ug/l	75.3 ug/l	77 ug/l	0.03 mg/l	5	12
OCT-DEC 2024	879 ug/l	130.4 ug/l	68 ug/l	0.03 mg/l	5	15
JUL-SEP 2024	721 ug/l	105.3 ug/l	97 ug/l	0.03 mg/l	5	15
APR-JUN 2024	877 ug/l	103.4 ug/l	121 ug/l	0.04 mg/l	5	13
JAN-MAR 2024	1,008 ug/l	124.9 ug/l	62 ug/l	0.03 mg/l	6	16
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, 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
JUL-SEP 2026	859 ug/l	24.0 ug/l	29 ug/l	0.02 mg/l	20	20
APR-JUN 2026	750 ug/l	28.5 ug/l	22 ug/l	0.01 mg/l	19	19
JAN-MAR 2026	804 ug/l	28.7 ug/l	17 ug/l	0.01 mg/l	23	24
OCT-DEC 2025	721 ug/l	32.7 ug/l	24 ug/l	0.01 mg/l	48	73
JUL-SEP 2025	821 ug/l	24.0 ug/l	25 ug/l	0.01 mg/l	47	89
APR-JUN 2025	849 ug/l	24.0 ug/l	27 ug/l	0.01 mg/l	48	92
JAN-MAR 2025	741 ug/l	24.0 ug/l	27 ug/l	0.01 mg/l	47	78
OCT-DEC 2024	703 ug/l	24.0 ug/l	29 ug/l	0.04 mg/l	45	45
JUL-SEP 2024	753 ug/l	24.0 ug/l	24 ug/l	0.01 mg/l	46	101
APR-JUN 2024	837 ug/l	24.0 ug/l	31 ug/l	0.01 mg/l	49	73
JAN-MAR 2024	755 ug/l	49.3 ug/l	27 ug/l	0.01 mg/l	48	110
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 Altamonte Springs, 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 faster than it has been historically.	Flows Data Table and Graph	In the past 30 days Average water levels are higher than they have been historically.	Levels Data Table and Graph

Source(s): Not Available

Source(s): Not Available