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 2025	1,572 ug/l		102 ug/l	2.5 mg/l	9	17
APR-JUN 2025	1,629 ug/l	198.7 ug/l	121 ug/l	33 mg/l	11	34
JAN-MAR 2025	1,459 ug/l	42.5 ug/l	88 ug/l		9	33
OCT-DEC 2024	1,336 ug/l	92.7 ug/l	114 ug/l	21 mg/l	14	50
JUL-SEP 2024	1,372 ug/l	92.0 ug/l	93 ug/l	3.75 mg/l	13	52
APR-JUN 2024	1,421 ug/l		66 ug/l	4 mg/l	14	22
JAN-MAR 2024	1,176 ug/l		92 ug/l	4 mg/l	15	52
OCT-DEC 2023	1,100 ug/l		128 ug/l	6 mg/l	15	46
JUL-SEP 2023	1,078 ug/l		117 ug/l	5.5 mg/l	17	54
APR-JUN 2023	1,226 ug/l		179 ug/l	5 mg/l	13	30
JAN-MAR 2023	1,370 ug/l		181 ug/l		12	43
Five Year Seasonal Graph	Graph	Graph	Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, Polk County Parks & Natural Resources Division, SFWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP South District Sampling Data, FDEP Watershed Monitoring Section, SFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP Watershed Assessment Section, FDEP, Water Quality Standards and Special Projects (Florida), FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Polk County Natural Resources Division, South Florida Water Management District, FDEP - Southwest Regional Operations Center, FDEP - Southeast 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 2025	1,234 ug/l	41.2 ug/l	62 ug/l		17	18
JAN-MAR 2025	1,222 ug/l	152.1 ug/l	49 ug/l		16	16
OCT-DEC 2024	1,175 ug/l	82.6 ug/l	46 ug/l		25	25
JUL-SEP 2024	996 ug/l	39.6 ug/l	40 ug/l		27	34
APR-JUN 2024	952 ug/l		40 ug/l		36	43
JAN-MAR 2024	944 ug/l		32 ug/l		31	45
OCT-DEC 2023	961 ug/l		36 ug/l		23	32
JUL-SEP 2023	953 ug/l		50 ug/l		31	41
APR-JUN 2023	963 ug/l		48 ug/l		31	57
JAN-MAR 2023	926 ug/l		34 ug/l		32	43
Five Year Seasonal Graph	Graph	Graph	Graph	Graph
Five Year Graph of All Samples	Graph	Graph	Graph	Graph

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, Polk County Parks & Natural Resources Division, FDEP Central Regional Operations Center, FDEP South District Sampling Data, Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Watershed Monitoring Section, Polk County Natural Resources Division, SFWMD Water Quality Sampling Data, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), SWFWMD Water Quality Monitoring Program Data, FDEP - Central Regional Operations Center, FDEP - South Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Polk County Natural Resources Division, Southwest Florida Water Management District, FDEP - Southwest Regional Operations Center

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
Arbuckle Creek	In the past 30 days Average river flow is slower than it has been historically.	Flows Data Table and Graph	In the past 30 days NO DATA Recent water level data is unavailable.	No data table or graph available
Tiger 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
Livingston Creek	In the past 30 days Average river flow is slower than it has been historically.	Flows Data Table and Graph	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