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The Determination of Minimum Flows for Sulphur Springs, Tampa

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Fig. 3-25<br />

Fig. 3-26<br />

Fig. 3-27<br />

Fig. 3-28<br />

Fig. 3-29<br />

Fig. 3-30<br />

Fig. 3-31<br />

Fig 3-32<br />

Fig. 3-33<br />

Seasonal temperature variations in <strong>Sulphur</strong> <strong>Springs</strong> pool taken from<br />

monthly data recorded by the City <strong>of</strong> <strong>Tampa</strong>................................... 3-54<br />

Comparison <strong>of</strong> water temperatures in <strong>Sulphur</strong> <strong>Springs</strong> pool and the<br />

data recorder in the upper spring run over withdrawals from the spring<br />

pool.................................................................................................. 3-55<br />

Comparison <strong>of</strong> water temperatures in <strong>Sulphur</strong> <strong>Springs</strong> pool and the<br />

data recorder at the mouth <strong>of</strong> the spring run over withdrawals from the<br />

spring pool....................................................................................... 3-55<br />

Box and whisker plots <strong>of</strong> monthly water temperatures <strong>for</strong> the periods <strong>of</strong><br />

record at four sites monitored by the EPCHC ambient monitoring<br />

program (all depths combined)........................................................ 3-57<br />

Monthly median (A) and minimum (B) water temperatures <strong>for</strong> four sites<br />

in the Lower Hillsborough River monitored by the EPCHC ambient<br />

monitoring program <strong>for</strong> 1999 - 2002 (all depths combined) ............ .3-58<br />

Monthly median (A) and minimum (B) water temperatures <strong>for</strong> four data<br />

recorders in the Lower HIllsborough River monitored by the USGS <strong>for</strong><br />

2002 ................................................................................................ 3-59<br />

Time series <strong>of</strong> surface and bottom water temperatures at four data<br />

recorders in the Lower Hillsborough River operated by the USGS.. 3-61<br />

Vertical temperature differentials (surface minus bottom) at four data<br />

recorders in the Hillsborough River operated by the USGS ............ 3-62<br />

Daily ranges <strong>of</strong> water temperatures (maximum - minimum) <strong>for</strong> surface<br />

and bottom waters at four data recorders in the Hillsborough River<br />

operated by the USGS .................................................................... 3-63<br />

DRAFT<br />

Chapter 5 - Results <strong>of</strong> the <strong>Minimum</strong> <strong>Flows</strong> Analysis<br />

Fig. 5-1 Average daily flows from <strong>Sulphur</strong> <strong>Springs</strong> Pool <strong>for</strong> November 2001<br />

through June 2002 with reference lines denoting periods <strong>of</strong><br />

experimental flow releases ................................................................ 5-2<br />

Fig. 5-2<br />

Location <strong>of</strong> vertical pr<strong>of</strong>ile stations measured during experimental flow<br />

releases............................................................................................. 5-5<br />

Fig. 5-3A-D Box and whisker plots <strong>for</strong> salinity measurements at 23 stations in the<br />

upper and lower spring run <strong>for</strong> six flow experiments. Data include all<br />

salinity values from the water column (top to bottom)........................ 5-6<br />

Fig. 5-3E-F Box and whisker plots <strong>for</strong> salinity measurements at 23 stations in the<br />

upper and lower spring run <strong>for</strong> six flow experiments. Data include all<br />

salinity values from the water column (top to bottom)........................ 5-7<br />

Fig. 5-4<br />

Fig. 5-5<br />

Fig. 5-6<br />

Number <strong>of</strong> days in 1 cfs flow classes <strong>for</strong> flows from <strong>Sulphur</strong> <strong>Springs</strong><br />

pool.................................................................................................... 5-9<br />

Box and whisker plot <strong>of</strong> 15 minute salinity measurements at the data<br />

recorder in the upper spring run. Data restricted to periods when there<br />

was no flow to the lower river from the Hillsborough River reservoir5-10<br />

Percent <strong>of</strong> 15-minute observations greater than or equal to 5 or 10 ppt<br />

at the data recorder in the upper spring run <strong>for</strong> 1 cfs flow classes from<br />

<strong>Sulphur</strong> <strong>Springs</strong>............................................................................... 5-14<br />

viii

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