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to or from spawning grounds, while 150 species permanently inhabit 

 these waters. 



Activities that are principally concerned with the use of water as 

 a medium for movement include power-boating, sailing, water skiing, 

 fishing from boats, scuba-diving, and riding sightseeing boats and 

 ferry boats. 



Boating registration in the Bay area counties increased from 53,000 

 in 1960 to 83,000 in 1965, an increase of some 57 percent. It has 

 been reported that an inventory taken in 1965 of wet-storage facil- 

 ities indicated a total 12,700 spaces available and 270 lanes of 

 launching also existed. 



San Francisco Bay is a receptacle for waste from municipal (domestic), 

 industrial, and agricultural sources throughout its tributary area. 



Three hundred and ninety-eight million gallons of treated sewage and 

 industrial wastes are discharged daily during dry weather to the tidal 

 waters of the Bay system from 77 municipal sewerage systems. Approx- 

 imately 35 percent of these waste flows receive secondary treatment 

 at 23 sewage treatment plants with the remaining flow receiving pri- 

 mary treatment at 54 sewage treatment plants. No community is 

 discharging waste without treatment in the San Francisco Bay region. 

 Forty-seven municipal waste discharges are now disinfecting or have 

 facilities capable of disinfecting their waste flow which amounts to 

 245 million gallons per day, while 32 dischargers with a total waste 



