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	1,266 ug/l	290.0 ug/l	204 ug/l	0.1 mg/l	1	2
APR-JUN 2026	1,274 ug/l	205.0 ug/l	177 ug/l	0.09 mg/l	1	3
JAN-MAR 2026	1,650 ug/l	680.0 ug/l	219 ug/l	0.13 mg/l	1	3
OCT-DEC 2025	2,643 ug/l	1,466.7 ug/l	297 ug/l	0.11 mg/l	1	3
JUL-SEP 2025	2,310 ug/l	716.7 ug/l	331 ug/l	0.2 mg/l	1	3
APR-JUN 2025	924 ug/l	183.3 ug/l	209 ug/l	0.09 mg/l	2	4
JAN-MAR 2025	1,115 ug/l	406.7 ug/l	230 ug/l	0.12 mg/l	1	3
OCT-DEC 2024	1,293 ug/l	480.0 ug/l	291 ug/l	0.18 mg/l	1	3
JUL-SEP 2024	1,113 ug/l	300.0 ug/l	477 ug/l	0.36 mg/l	1	3
APR-JUN 2024	1,412 ug/l	266.7 ug/l	473 ug/l	0.29 mg/l	1	3
JAN-MAR 2024	3,772 ug/l	2,700.0 ug/l	431 ug/l	0.3 mg/l	1	3
Five Year Seasonal Graph	Graph	Graph	Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): Seminole County Water Quality Data, FDEP - Central Regional Operations Center

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
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): FDEP Historic Data from Legacy STORET, Seminole County Legacy Storet Data, Seminole County Water Quality Data, SJRWMD Water Quality Data, FDEP Watershed Monitoring Section, FDEP Watershed Monitoring Section

River	Flows Whole River Range	Flows Data by Segment	Levels Whole River Range	Levels Data By Segment
Saint Johns River	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