V-296 



of waste waters; therefore, the FWPCA recommended that no 



discharge from the drain be permitted for at least five 



years, i.e., until 1972, so that pilot treatment facilities 

 can be built and tested. 



Interestingly, the FWPCA study also concluded that the 

 drain, as presently planned, would not increase the present 

 pesticide content of the Bay and delta, principally because 

 most pesticides are absorbed or decomposed as they pass 

 through the soil of farmlands, while the drain would 

 collect sub-surface waters. 



The pressures on San Francisco Bay area are very similar 

 to those of Chesapeake Bay. Population pressures are 

 present and these people look to the Bay as a source for 

 water supply, transportation, recreation, and waste 

 disposal. Dredging and filling are present to the extent 

 that more than 80 percent of marshland, and 20 percent of 

 the tidelands have filled with resulting losses to fish, 

 shellfish, and wildlife. There is a need for deepening 

 shipping channels to accommodate larger ships. 



