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
APR-JUN 2024	790 ug/l		195 ug/l		4	4
JAN-MAR 2024	1,153 ug/l		175 ug/l		4	4
OCT-DEC 2023	850 ug/l		213 ug/l		4	8
JUL-SEP 2023	913 ug/l		190 ug/l		4	8
APR-JUN 2023	740 ug/l		279 ug/l		4	8
JAN-MAR 2023	770 ug/l		189 ug/l		4	8
OCT-DEC 2022	827 ug/l		103 ug/l		6	11
JUL-SEP 2022	916 ug/l		133 ug/l		6	13
APR-JUN 2022	769 ug/l		115 ug/l		6	11
JAN-MAR 2022	1,197 ug/l		215 ug/l		6	6
Five Year Seasonal Graph	Graph		Graph
Five Year Graph of All Samples	Graph		Graph

Source(s): Legacy Pinellas Water Quality Data, PINELLAS Water Quality Data, FDEP Watershed Monitoring Section, FDEP Southwest Regional Operations Center, USGS National Water Information System, Pinellas County Department of Environmental Management, 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
APR-JUN 2024	620 ug/l		20 ug/l		1	1
JUL-SEP 2023	900 ug/l		20 ug/l		1	1
JAN-MAR 2023	530 ug/l		10 ug/l		1	1
OCT-DEC 2022	560 ug/l		10 ug/l		1	2
JUL-SEP 2022	630 ug/l		20 ug/l		1	2
APR-JUN 2022	645 ug/l		20 ug/l		1	2
JAN-MAR 2022	690 ug/l		20 ug/l		1	1
Five Year Seasonal Graph	Graph		Graph
Five Year Graph of All Samples	Graph		Graph

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, Legacy Pinellas Water Quality Data, PINELLAS Water Quality Data, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, SWFWMD Water Quality Monitoring Program Data, Pinellas County Department of Environmental Management

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
Mckay 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

Source(s): Not Available

Source(s): Not Available