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
JAN-MAR 2018	1,667 ug/l		495 ug/l	0.26 mg/l	3	3
OCT-DEC 2017	1,713 ug/l		466 ug/l	0.29 mg/l	3	3
JUL-SEP 2017	1,610 ug/l		511 ug/l	0.35 mg/l	3	3
APR-JUN 2017	2,747 ug/l		651 ug/l	0.16 mg/l	3	3
JAN-MAR 2017	2,170 ug/l		656 ug/l	0.4 mg/l	3	3
OCT-DEC 2016	1,587 ug/l		425 ug/l	0.26 mg/l	3	3
JUL-SEP 2016	1,463 ug/l		367 ug/l	0.2 mg/l	3	3
APR-JUN 2016	1,677 ug/l		530 ug/l	0.31 mg/l	3	3
JAN-MAR 2016	2,837 ug/l		506 ug/l	0.29 mg/l	3	3
Five Year Seasonal Graph	Graph		Graph	Graph
Five Year Graph of All Samples	Graph		Graph	Graph

Source(s): FDEP Historic Data from Legacy STORET, Polk County Parks & Natural Resources Division, FDEP Ambient Monitoring Sampling Data, SWFWMD Water Quality Sampling Data (STORET), FDEP Southwest District Sampling Data, FDEP, Water Quality Standards and Special Projects (Florida), USGS National Water Information System

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
APR-JUN 2018	847 ug/l		22 ug/l	0 mg/l	6	6
JAN-MAR 2018	1,743 ug/l		161 ug/l	0.03 mg/l	32	32
OCT-DEC 2017	1,653 ug/l		154 ug/l	0.05 mg/l	32	32
JUL-SEP 2017	1,336 ug/l		112 ug/l	0.04 mg/l	34	36
APR-JUN 2017	1,987 ug/l		141 ug/l	0.02 mg/l	34	38
JAN-MAR 2017	1,569 ug/l		136 ug/l	0.03 mg/l	34	38
OCT-DEC 2016	1,342 ug/l		126 ug/l	0.05 mg/l	35	41
JUL-SEP 2016	1,322 ug/l		77 ug/l	0.01 mg/l	27	33
APR-JUN 2016	1,485 ug/l		109 ug/l	0.03 mg/l	28	34
JAN-MAR 2016	1,615 ug/l		150 ug/l	0.04 mg/l	26	30
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 , Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Ambient Monitoring Sampling Data, SWFWMD Water Quality Sampling Data (STORET), FDEP Southwest District Sampling Data, FDEP, Water Quality Standards and Special Projects (Florida), SWFWMD Water Quality Monitoring Program Data, USGS National Water Information System

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 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
Lena Run	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): Hillsborough County Stream Waterwatch, Southwest Florida Water Management District, Southwest Florida Water Management District, USGS National Water Information System

Source(s): Not Available