60 FLORIDA GEOLOGICAL SURVEY


 Figure 19c has been plotted to show the cumulative runoff from
the combined Withlacoochee River and Palatlakaha Creek basins.
The average line defining this curve has the same slope for the
entire period, 1946-61. This indicates that there has been no
significant change in runoff from the combined basins.






 300~ ---- --- --- ---- ------ ---- _-- ---- ---
 35C



 300 1,960


 250

 S' 1955


 1950

c 0I 5 10945

 (o) Withlacoochee River
 100 1940\ oft Trilby, 1931-61

- O t 1935 0'
 50- ----- --- --- --- --- ___ ___ ___

 193

 0- 0 50 100 150 200 250 300 350 400 450


zuu I-------- i ---
 (b) Palatlakaha Creek above
 Mascotte, 1946-61
 150



 100 19 60



 50 195 1955 -


 519046
 S 50 100 150 200


Cumulative


measured runoff, in inches


Figure 19. Double-mass curves of measured runoff versus computed runoff,
 Withlacoochee River and Palatlakaha Creek basins.