  POSITION INDICATES  APPROXIMATE CENTER OF DISPOSAL AREA.
DISPOSAL AREA APPLIED TO CHART 18447 FROM 1967 STANDARD.   SOURCE DOCUMENT HAS NOT BEEN ASCERTAINED. EXTENT OF CHARTED DISPOSAL IS LAT. 47/31/13.49  N, LON. 122/13/38.37 W.; LAT. 47/31/13.37 N,