FLORIDA GEOLOGICAL SURVEY


was very hard (204 ppm), and the color was low (15 units). These
overall chemical characteristics during low flow indicate inflow
from the Floridan aquifer. The mineral content of water of the
Withlacoochee River at Croom (station 44) varied from 176 ppm
during low flow to 45 ppm during a period of high flow (fig. 13e).
The color ranged from 10 units at low flow to 120 units at high flow.
The water was soft (34 ppm) during high flow and hard (144 ppm)
during low flow.
 Data collected at Lake Helene during April 1962 show that the
water was low in mineral content (51 ppm); the temperature
ranged from 760F. at the surface to 680F. at the deepest point in
the lake (25 feet); dissolved oxygen ranged from 7.5 ppm at the
top to 3.8 ppm at the bottom; and the pH ranged from 6.0 units at
the top to 5.3 units at the bottom.
 The waters of Lake Mattie and Little Lake Agnes were low in
mineral content and slightly colored. These lakes are similar in
chemical characteristics to those of Lake Helene. The mineral
content of water in the three lakes is about the same as that of
water in the nonartesian aquifer.

 OKLAWAHA RIVER BASIN

 DESCRIPTION OF BASIN

 Palatlakaha Creek is the major headwater stream of the
Oklawaha River. Figure 14 shows a flow diagram of the upper
Oklawaha River system and the names of the various segments of
the water course.
 Lake Lowery, the largest of a group of lakes located near Haines
City is the headwaters of the Palatlakaha Creek basin. Most of
the drainage from Lake Lowery is to the north into Green Swamp
Run through a culvert in the old Haines City-Polk City road. At
extremely high lake stages the road is inundated.
 The Palatlakaha Creek basin is confined by parallel sand ridges
that extend from Lake Lowery northward almost to Lake Louisa.
Between Lake Lowery and the Polk-Lake County line the drainage
course is called Green Swamp Run. The stream channels in this
water course are not deeply incised, and drainage is through wide
shallow swamps.
 Big and Little creeks drain the basin between the Polk-Lake
County line and Lake Louisa. Big Creek is a continuation of
Green Swamp Run. The stream channels for both Big and Little