45 
In addition to coliform determinations, samples were used 
to enumerate enterococci by the molecular filter technique 
(these determinations were made by personnel from the laboratory 
of the Los Angeles County Sanitation Districts, who were present 
aboard the VELERO IV). The data obtained is contoured in the 
same fashion as the coliform data (Fig. 14). A comparison of 
the two sets of contours shows that there is a reasonable 
similarity between them down coast from the outfall where an 
area of relatively high counts of both types of organisms 
extend past Point Fermin, In the uwpcoast direction, correlation 
is not as good. A series of apparently isolated highs of entero- 
cocci were found whose course is along the continuous tongue of 
high- coliforms found in this area. Whereas the coliform contours 
strongly suggest the outfall as the source of all the coliforms 
in the area (excluding perhaps the high pocket just offshore 
from the Oceanarium and the pocket off the entrance to the harbor), 
the discontinuous nature of the enterococci distribution might 
suggest multiple sources of these organisms. 
When the coliform coumt is plotted against the enterococci 
count, the most apparent relation is that the majority of the 
Samples (excluding those where both counts were nil) have coli- 
form counts ten or more times the enterococci counts. There is 
no constant ratio between the numbers of the two types of organ- 
isms, nor is there any obvious trend of either increasing or 
decreasing ratio with distance from the outfall. It has been 
suggested that a comparison of coliform and enterococci counts 
might provide a basis for distinguishing between fecai and non- 
fecal coliforms or between coliforms of recent or older origin. 
