3. The percent effluent has decreased slightly at 

 the stations during the year's cycle. 



4. There was more effluent at Stations 2 through 6 

 than elsewhere in the harbor. 



Use of circular graphs also permits presentation of all the monthly 

 operating data of the desalination plant on a single page (see Fig. 

 10, page 46), and monthly averages of pertinent ambient conditions 

 on a single page (see Fig. 11, page 47). The cyclic nature of the 

 average temperature and salinity and the noncyclic nature of the 

 depth of the effluent stratum and of copper concentration in the 

 harbor are clearly shown in Figure 11. Comparison of the shape of 

 the shaded curves of salinity and the depth of the effluent stratum 

 shows these two factors follow a similar pattern during the year, 

 whereas changes in temperature are not reflected in changes of the 

 depth of the effluent stratum. 



40 



