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
OCT-DEC 2023	820 ug/l		132 ug/l		5	5
JUL-SEP 2023	628 ug/l		68 ug/l		4	8
APR-JUN 2023	572 ug/l		60 ug/l		3	8
JAN-MAR 2023	680 ug/l		112 ug/l		6	13
OCT-DEC 2022	1,345 ug/l		297 ug/l		13	35
JUL-SEP 2022	3,541 ug/l		326 ug/l		20	54
APR-JUN 2022	1,422 ug/l		291 ug/l		20	50
JAN-MAR 2022	1,288 ug/l		473 ug/l	0.27 mg/l	20	57
OCT-DEC 2021	1,379 ug/l		418 ug/l	0.51 mg/l	21	54
JUL-SEP 2021	1,835 ug/l		313 ug/l		20	56
APR-JUN 2021	1,316 ug/l		378 ug/l		20	52
JAN-MAR 2021	1,232 ug/l		443 ug/l		20	56
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, FDEP Historic Data from Legacy STORET, Sarasota County Historic Data from Legacy STORET, Sarasota County Coastal Creeks, FDEP Charlotte Harbor Aquatic/Buffer Preserves Sampling Data, FDEP South District Sampling Data, FDEP Watershed Monitoring Section, USGS National Water Information System, FDEP - Charlotte Harbor Aquatic Preserves, FDEP - South Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH

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
JAN-MAR 2023	2,320 ug/l		34 ug/l		3	6
OCT-DEC 2022	2,424 ug/l		105 ug/l		5	12
JUL-SEP 2022	3,172 ug/l		94 ug/l		9	23
APR-JUN 2022	4,728 ug/l		176 ug/l		12	24
JAN-MAR 2022	3,298 ug/l		185 ug/l		9	24
OCT-DEC 2021	2,990 ug/l		140 ug/l	0 mg/l	9	21
JUL-SEP 2021	3,022 ug/l		186 ug/l		9	27
APR-JUN 2021	3,511 ug/l		148 ug/l		12	33
JAN-MAR 2021	3,207 ug/l		152 ug/l		9	24
Five Year Seasonal Graph	Graph		Graph	Graph
Five Year Graph of All Samples	Graph		Graph	Graph

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, Sarasota County Coastal Creeks, FDEP Watershed Monitoring Section, Florida LAKEWATCH

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
Gottfried 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 lower than they have been historically.	Levels Data Table and Graph
Forked 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 lower than they have been historically.	Levels Data Table and Graph
Alligator 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 lower than they have been historically.	Levels Data Table and Graph

Source(s): Not Available

Source(s): Not Available