The Determination of Minimum Flows for Sulphur Springs, Tampa

DRAFT
LIST OF FIGURES
Chapter 2 - Physical and Hydrologic Characteristics of Sulphur
Springs
Fig. 2-1 Location map of Sulphur Springs and the Lower Hillsborough River in
Tampa, Florida .................................................................................. 2-1
Fig. 2-2A Photograph from 1908 showing the concrete rim enclosing the
Sulphur .............................................................................................. 2-2
Fig. 2-2B Public swimming and recreation at Sulphur Springs during the
early 1900s........................................................................................ 2-2
Fig. 2-3 Recent photograph of Sulphur Springs Pool ..................................... 2-4
Fig. 2-4 Discharge structure at Sulphur Springs Pool..................................... 2-4
Fig. 2-5 Diagram of Sulphur Springs showing the shoreline and structural
features associated with the spring pool, spring run, and Lower
Hillsborough River. Also shown are the locations of four recording
gages operated by the U.S Geological Survey.................................. 2-5
Fig. 2-6A Upper footbridge over Sulphur Springs Run viewed from north bank
just below pool................................................................................... 2-6
Fig. 2-6B Weir with opening extending across Sulphur Springs Run, showing the
footbridge at the mouth of the spring run in the background ............. 2-6
Fig. 2-6C Shoreline of Sulphur Springs Run, looking upstream along North Bank2-6
Fig. 2-6D Shoreline of Sulphur Springs Run looking upstream along the south
bank, showing USGS data recorder in the upper spring run ............. 2-6
Fig. 2-7 Bathymetric map of Sulphur Springs Run. Yellow lines are one-half
foot contours relative to NGVD, 1929 ................................................ 2-7
Fig. 2-8 Surface area and volume of Sulphur Springs Run as a function of
water level in the Spring Run............................................................. 2-8
Fig. 2-9 Average annual pumpage rates from Sulphur Springs by the City of
Tampa for 1984-2002 ...................................................................... 2-10
Fig. 2-10 Average monthly pumpage rates from Sulphur Springs for
1984-2002 ....................................................................................... 2-10
Fig. 2-11 Average daily pumpage from Sulphur Springs 1999-2002 .............. 2-12
Fig. 2-12 Daily discharge from Sulphur Springs 1999-2002 ........................... 2-12
Fig. 2-13 Flume discharge structure at base of reservoir dam........................ 2-13
Fig. 2-14 Return flow structure at Sulphur Springs Pool................................. 2-14
Fig. 2-15 Average monthly flows from Sulphur Springs corrected for withdrawals
for 1991-2002 .................................................................................. 2-16
Fig. 2-16 Flow duration curves for daily flow values from Sulphur Springs for
days with no withdrawals (blue) and complete daily records (red) for
1991-2002 ....................................................................................... 2-16
Fig. 2-17 Known sinkoles locations near Tampa, Florida ............................... 2-17
Fig. 2-18 Potentiometric surface of the Upper Florida aquifer near Sulphur
Springs for May, 2002 ..................................................................... 2-18
Fig. 2-19 Temporal trend of monthly Sulphur Springs flows: corrected and
uncorrected for withdrawals. Kendall-Theil slope shown ................. 2-20
Fig. 2-20 Temporal trends of specific conductance and salinity in the Tourist
Club well. Kendallj-Theil slope shown ............................................. 2-22
v