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 2023	2,851 ug/l		887 ug/l		5	5
APR-JUN 2023	1,697 ug/l		726 ug/l		27	32
JAN-MAR 2023	1,359 ug/l		740 ug/l		32	59
OCT-DEC 2022	1,335 ug/l		649 ug/l		36	76
JUL-SEP 2022	1,522 ug/l		645 ug/l		36	66
APR-JUN 2022	1,686 ug/l		594 ug/l		38	64
JAN-MAR 2022	1,566 ug/l		906 ug/l		36	70
OCT-DEC 2021	1,439 ug/l		599 ug/l		32	48
JUL-SEP 2021	1,593 ug/l		789 ug/l	655.82 mg/l	44	56
APR-JUN 2021	1,703 ug/l		764 ug/l	477.5 mg/l	51	74
JAN-MAR 2021	1,479 ug/l		792 ug/l	1074.8 mg/l	54	80
Five Year Seasonal Graph	Graph		Graph	Graph
Five Year Graph of All Samples	Graph		Graph	Graph

Source(s): Charlotte Harbor Estuaries Volunteer Water Quality Monitoring Network, LAKEWATCH Volunteer Water Quality Monitoring, USEPA Region 4, FDEP Historic Data from Legacy STORET, Florida Department of Environmental Protection, SWFWMD Legacy Water Quality Sampling Data, Polk County Parks & Natural Resources Division, Biological Research Associates , FDEP Charlotte Harbor Aquatic/Buffer Preserves Sampling Data, FDEP South District Sampling Data, Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), City of Punta Gorda, Peace River Manasota Regional Water Supply Authority (FL), SWFWMD/DEP Water Quality Sampling Data, USGS National Water Information System, FDEP - Charlotte Harbor Aquatic Preserves, FDEP - South Regional Operations Center, FDEP Watershed Monitoring Section, Polk County Parks & Natural Resources Department, Southwest Florida Water Management District, FDEP - Southwest Regional Operations Center, FDEP - Watershed Assessment Section, Peace River Manasota Regional Water Supply Authority

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 2023	953 ug/l		41 ug/l		47	47
APR-JUN 2023	1,302 ug/l		84 ug/l		104	108
JAN-MAR 2023	1,404 ug/l		114 ug/l		126	172
OCT-DEC 2022	1,171 ug/l		107 ug/l		128	188
JUL-SEP 2022	1,263 ug/l		88 ug/l		132	174
APR-JUN 2022	1,305 ug/l		102 ug/l		142	185
JAN-MAR 2022	1,395 ug/l		127 ug/l		123	164
OCT-DEC 2021	1,166 ug/l		68 ug/l		123	157
JUL-SEP 2021	1,334 ug/l		127 ug/l	14.92 mg/l	187	229
APR-JUN 2021	1,574 ug/l		82 ug/l	18.51 mg/l	216	235
JAN-MAR 2021	1,263 ug/l		91 ug/l	23.58 mg/l	229	248
Five Year Seasonal Graph	Graph		Graph	Graph
Five Year Graph of All Samples	Graph		Graph	Graph

Source(s): Water quality data collected by the City of Lakeland, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, Polk County Parks & Natural Resources Division, Biological Research Associates , FDEP South District Sampling Data, Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), City of Punta Gorda, SWFWMD Water Quality Monitoring Program Data, USGS National Water Information System, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Polk County Parks & Natural Resources Department, Southwest Florida Water Management District, FDEP - Southwest Regional Operations Center, FDEP - Watershed Assessment Section, City of Lakeland

River	Flows Whole River Range	Flows Data by Segment	Levels Whole River Range	Levels Data By Segment
Lake Hamilton Outlet	In the past 30 days NO DATA Recent river flow data is unavailable.	No data table or graph available	In the past 30 days Average water levels are higher than they have been historically.	Levels Data Table and Graph
Lake Ariana Drain	In the past 30 days NO DATA Recent river flow data is unavailable.	No data table or graph available	In the past 30 days Average water levels are higher than they have been historically.	Levels Data Table and Graph
Saddle Creek	In the past 30 days NO DATA Recent river flow data is unavailable.	No data table or graph available	In the past 30 days Average water levels are higher than they have been historically.	Levels Data Table and Graph
Lake Hancock Outlet	In the past 30 days NO DATA Recent river flow data is unavailable.	No data table or graph available	In the past 30 days Average water levels are higher than they have been historically.	Levels Data Table and Graph
Oak Creek (1897)	In the past 30 days NO DATA Recent river flow data is unavailable.	No data table or graph available	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