Additional uncharted submarine pipelines and 
submarine cables may exist within the area of 
this chart. Not all submarine pipelines and sub-
marine cables are required to be buried, and 
those that were originally buried may have 
become exposed. Mariners should use extreme 
caution when operating vessels in depths of 
water comparable to their draft in areas where 
pipelines and cables may exist, and when 
anchoring, dragging, or trawling.
Covered wells may be marked by lighted or 
unlighted buoys.