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	779 ug/l	150.0 ug/l	81 ug/l	0.02 mg/l	5	6
JUL-SEP 2024	1,090 ug/l	131.0 ug/l	139 ug/l	0.06 mg/l	7	9
APR-JUN 2024	954 ug/l	156.0 ug/l	121 ug/l	0.06 mg/l	7	11
JAN-MAR 2024	803 ug/l	250.0 ug/l	77 ug/l	0.04 mg/l	6	6
OCT-DEC 2023	856 ug/l	182.6 ug/l	146 ug/l	0.02 mg/l	6	8
JUL-SEP 2023	896 ug/l	119.0 ug/l	108 ug/l	0.02 mg/l	7	10
APR-JUN 2023	585 ug/l	247.0 ug/l	155 ug/l	0.06 mg/l	8	14
JAN-MAR 2023	914 ug/l	356.0 ug/l	115 ug/l	0.05 mg/l	9	13
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, City of Altamonte Springs, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, Orange County Surface Water Quality, FDEP, Water Quality Standards and Special Projects (Florida), USGS National Water Information System, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Orange County Environmental Protection Division, 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
OCT-DEC 2024	608 ug/l	46.8 ug/l	39 ug/l	0.01 mg/l	10	10
JUL-SEP 2024	976 ug/l	24.0 ug/l	33 ug/l	0.01 mg/l	11	11
APR-JUN 2024	1,156 ug/l	39.2 ug/l	59 ug/l	0.02 mg/l	10	10
JAN-MAR 2024	809 ug/l	46.8 ug/l	44 ug/l	0.01 mg/l	20	20
OCT-DEC 2023	718 ug/l	46.8 ug/l	29 ug/l	0.01 mg/l	24	44
JUL-SEP 2023	650 ug/l	30.9 ug/l	18 ug/l	0.01 mg/l	24	41
APR-JUN 2023	633 ug/l	32.4 ug/l	16 ug/l	0.01 mg/l	23	36
JAN-MAR 2023	653 ug/l	114.8 ug/l	23 ug/l	0.01 mg/l	27	46
Five Year Seasonal Graph	Graph	Graph	Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): LAKEWATCH Supplemental Water Quality Sampling, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, 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, FDEP, Water Quality Standards and Special Projects (Florida), 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
Little Wekiva 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
Wekiva 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 higher than they have been historically.	Levels Data Table and Graph

Source(s): Not Available

Source(s): Not Available