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 2024	1,497 ug/l	81.0 ug/l	342 ug/l		4	4
APR-JUN 2024	1,862 ug/l		415 ug/l		4	4
JAN-MAR 2024	1,587 ug/l		541 ug/l		4	4
OCT-DEC 2023	1,230 ug/l		280 ug/l		4	4
JUL-SEP 2023	1,142 ug/l		279 ug/l		4	4
APR-JUN 2023	1,542 ug/l		503 ug/l		4	4
JAN-MAR 2023	1,397 ug/l		486 ug/l		4	4
OCT-DEC 2022	2,344 ug/l		599 ug/l		5	5
JUL-SEP 2022	1,634 ug/l		674 ug/l		6	6
APR-JUN 2022	2,634 ug/l		459 ug/l		6	6
JAN-MAR 2022	2,342 ug/l		443 ug/l		6	6
Five Year Seasonal Graph	Graph		Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): FDEP Historic Data from Legacy STORET, Polk County Parks & Natural Resources Division, FDEP Watershed Monitoring Section, Polk County Natural Resources Division, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), USGS National Water Information System, Polk County Natural Resources Division, FDEP - Southwest 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
JUL-SEP 2024	1,338 ug/l	11.4 ug/l	127 ug/l		26	26
APR-JUN 2024	1,791 ug/l		132 ug/l		27	27
JAN-MAR 2024	1,465 ug/l		129 ug/l		27	27
OCT-DEC 2023	1,468 ug/l		98 ug/l		34	40
JUL-SEP 2023	1,315 ug/l		80 ug/l		33	44
APR-JUN 2023	1,427 ug/l		105 ug/l		39	51
JAN-MAR 2023	1,324 ug/l		105 ug/l		39	57
OCT-DEC 2022	1,245 ug/l		96 ug/l		39	54
JUL-SEP 2022	1,389 ug/l		71 ug/l		42	53
APR-JUN 2022	1,368 ug/l		86 ug/l		43	57
JAN-MAR 2022	1,572 ug/l		120 ug/l		36	47
Five Year Seasonal Graph	Graph		Graph	Graph
Five Year Graph of All Samples	Graph	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 , Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Watershed Monitoring Section, Polk County Natural Resources Division, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), SWFWMD Water Quality Monitoring Program Data, USGS National Water Information System, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Polk County Natural Resources Division, Southwest Florida Water Management District, FDEP - Southwest Regional Operations Center, FDEP - Watershed Assessment Section, City of Lakeland

Southwest Florida Water Management District calculates the Aquifer Resource Indicator (ARI) for their three groundwater regions each month. The ARI was created to provide the public with a gauge of groundwater levels in their area, so they can develop an understanding of the severity and cycles of drought and recovery. The three regions include: North (Citrus, Hernando, Lake, Levy, Marion, and Sumter counties), Central (Hillsborough, Pasco, Pinellas, and Polk counties), and South (Charlotte, DeSoto, Hardee, Highlands, Manatee, and Sarasota counties). Learn More about the Aquifer Resource Indicator >>

To determine the ARI for a region, each well is compared weekly to its respective low-normal value and the difference is calculated. The weekly differences are reduced to a monthly value for all monitoring wells within a region, and the resulting ARI value represents how far water levels in the aquifer must rise or fall to reach their respective low-normal values.

Source: SWFWMD Hydrologic Data Section Data

River	Flows Whole River Range	Flows Data by Segment	Levels Whole River Range	Levels Data By Segment
Saddle 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
Banana-Hancock Canal	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
Lena Run	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
Lake Parker Outlet	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