320 



34 42 



-120.04 



-120.00 -119.96 



Longitude 



1995 



^^ef)f Coal Oil Point 



-it 



Holly Platform 



34.36 



-120.60 -H5 55 



Longitude 



-115.82 



TBI 



-120W 



-120.04 



APPROXIMATE SCALE 



0km 2km 



Figure 4. Oceanic concentrations of dissolved propane over the South 

 Eilwood field in 1981 compared with 1995. Contour levels 

 are shown in parts per milUon. 



