FLORIDA GEOLOGICAL SURVEY


from ground water. The drainage area at the gaging station is
22.8 square miles. The maximum discharge during 2 years of data
collection was 358 cfs and the minimum was 0.5 cfs. Runoff
characteristics of the Horse Creek basin are compared with those
of the Pony Creek basin in a following section of this report.

 CHEMICAL CHARACTERISTICS OF SURFACE WATER

 Data concerning the chemical characteristics of water in the
Kissimmee River basin were collected from Horse Creek and Reedy
Creek.
 Water of Horse Creek is more mineralized than water in the
upper Withlacoochee River. Figure 18 shows the general relation
of mineral content to discharge. The mineral content from July to
November 1960 ranged from 22 to 64 ppm (from daily conductivity
records). Calcium and bicarbonate were the principal dissolved
mineral constituents. The surface materials in the Horse Creek
basin are sands and clays, which are essentially insoluble in water,
and therefore the calcium bicarbonate type water in Horse Creek
is probably due to seepage from the Floridan aquifer. The following


 m z
 30
 i w
 zM

 W
 e_,

 U) LL


 10


 ,o
 20


Figure 18. Relation of


 30 40 50 60
 MINERAL CONTENT, IN
 PARTS PER MILLION
mineral content to discharge,
 Davenport.


Horse Creek at