219 



proposed sludge and effluent outfall terminals. All high 

 velocity returns from these stations are summarized in 

 Table XI. 

 Cruise of June 29, 1956 



In connection with a salinity survey of the inshore area, 

 drift cards were released on June 29 at each of ten stations 

 along a line three miles from shore between Playa del Rey 

 and Manhattan Beach- Station locations and results are 

 presented in Figure 106. Sixty per cent of the cards were 

 returned. 



With few exceptions the cards drifted north and inshore, 

 coming to the beach in the area between Santa Monica and Playa 

 del Rey. The drift of only one card, from Station 4458, 

 ended at a point south of its place of release. 



Seven returns are of special interest because they were 

 recovered on the same day, between 7 and 9 hours after 

 release. All other cards were recovered the following morning, 

 on June 30 or later. The velocities of these seven cards 

 ranged between 0.38 and 0.54 MPH, or between 9.1 and 13.0 

 miles per day. The significance of these high velocities, 

 as well as those found on the previous cruise of April 25, 

 is discussed elsewhere. 

 Cruise of July 26-27 , 1956 



This was the first of three additional cruises made for 

 the purpose of extending the drift card data through the 

 summer months. On this cruise, as well as on the two following, 

 cards were released during the night hours in order to make 

 possible recoveries during the critical 8-20 hour period 



