The results of the wasteload allocation performed for Sarasota Bay 
indicates that this system is much more sensitive to urban runoff 
loadings. Loading values for the wasteload allocation study in Sarasota 
Bay are shown in Table 3. Non-point sources contribute by far most of 
the total suspended solids and 30 to 50% of the nitrogen and phosphorus 
loadings to the bay, respectively. 
Table 3. Comparison of total loads to Sarasota Bay 1981-1982 (lbs. per 
day). (From Priede/Sedgwick, Inc. 1983.) 
TSS 
IN 
IP 
Point sources (measured) 
166 
1,079 
253 
Non-point sources (estimated) 
3,021 
291 
118 
These data indicate that the levels of non-point source loadings 
to Tampa and Sarasota Bays are significant with existing levels of 
urbanization. Realizing that urbanization will continue as the 
population in Florida continues to increase, non-point source loadings 
will have to be dealt with. New sources as well as existing development 
will have to be examined in order to manage and improve runoff quality. 
The retrofitting process for stormwater quality treatment in existing 
developed areas will be costly, controversial and time consuming. 
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