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 2025			985 ug/l		2	2
APR-JUN 2025			677 ug/l		2	6
JAN-MAR 2025	969 ug/l		663 ug/l	0.06 mg/l	4	9
OCT-DEC 2024	614 ug/l		630 ug/l	0.2 mg/l	5	14
JUL-SEP 2024			1,199 ug/l		3	9
APR-JUN 2024			486 ug/l		3	9
JAN-MAR 2024			564 ug/l		3	9
OCT-DEC 2023			583 ug/l		3	9
JUL-SEP 2023	670 ug/l		542 ug/l		6	12
APR-JUN 2023	37 ug/l		144 ug/l		3	7
JAN-MAR 2023	111 ug/l		416 ug/l		5	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, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, FDEP - Central Regional Operations Center, 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
JUL-SEP 2025	556 ug/l		18 ug/l		1	1
APR-JUN 2025			52 ug/l		7	12
JAN-MAR 2025	948 ug/l		48 ug/l	0.02 mg/l	26	36
OCT-DEC 2024	1,071 ug/l		67 ug/l	0.03 mg/l	28	43
JUL-SEP 2024	880 ug/l		41 ug/l	0.01 mg/l	28	42
APR-JUN 2024	932 ug/l		61 ug/l	0.01 mg/l	28	44
JAN-MAR 2024	757 ug/l		54 ug/l	0.01 mg/l	25	29
OCT-DEC 2023	814 ug/l	9.3 ug/l	39 ug/l	0.01 mg/l	22	38
JUL-SEP 2023	1,079 ug/l	4.0 ug/l	72 ug/l	0.01 mg/l	32	37
APR-JUN 2023	735 ug/l	4.0 ug/l	38 ug/l	0.01 mg/l	31	51
JAN-MAR 2023	771 ug/l	13.6 ug/l	44 ug/l	0.01 mg/l	28	41
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, Orange County Environmental Protection Division, Legacy Orange County Surface Water Quality, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Watershed Monitoring Section, Orange County Surface Water Quality, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Lake County Water Resource Management, Orange County Environmental Protection Division, St. Johns River Water Management District, FDEP - Watershed Assessment Section

River	Flows Whole River Range	Flows Data by Segment	Levels Whole River Range	Levels Data By Segment
NO DATA

Source(s): Not Available

Source(s): Not Available