u03 - AWOIS 1609

NM22/46 -- DERRICK BARGE WRECK LIGHTED BUOY 3, BLACK, QK FL GREEN, ESTABLISHED IN 62 FT., 1.75 MILES, 63 DEG. FROM SCOTLAND LIGHT VESSEL. BUOY LOCATED 200 FEET EAST OF SUNKEN WRECK WHICH LIES IN A SE-NW DIRECTION.

H10224/86 -- OPR-C121-WH-86; MAIN SCHEME HYDROGRAPHY AND SIDE-SCAN SONAR INVESTIGATION REVEALED WHAT APPEARED TO BE A WRECK IN FOUR PIECES 447M SW OF WRECK; FOUR DIVES WERE PERFORMED IN 1987; FOUND A BARGE, APPROXIMATELY 50 X 120 FT WITH A PNEUMATIC DEPTH GAUGE LEAST DEPTH OF 63 FT; 0-5 FT VISIBILITY; A STRUCTURE SIMILAR TO A DERRICK CRANE WAS FOUND; HYDROGRAPHER AND EVALUATOR RECOMMENDED DELETING CHARTED SYMBOL AND ADDING 63 WK AS SHOWN ON PRESENT SURVEY. (UPDATED MSD 4/91)

24 NO. 1350; BARGE, SUNK 5/30/46; POS. ACCURACY WITHIN 1 MILE;


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wave

We seldom consider the water we dive in, yet it is a fascinating subject in its own right.

Basic Chemistry

Water is an odorless, tasteless, transparent liquid that is colorless in small amounts but exhibits a bluish tinge in large quantities. It is the most familiar and abundant liquid on earth. In solid form ( ice ) and liquid form it covers about 70% of the earth's surface. It is present in varying amounts in the atmosphere. Most of the living tissue of a human being is made up of water; it constitutes about 92% of blood plasma, about 80% of muscle tissue, about 60% of red blood cells, and over half of most other tissues. It is also an important component of the tissues of most other living things.