  NO REGISTRY NUMBER ASSIGNED-- S-E604-RU-02; HLS PROJECT REPORT; SIDE SCAN SONAR CONTACT. SWMB LD OF 44 FEET IN LAT. 36-58-33.881N, LONG. 76-06-44.550W. SONAR IMAGERY DESCRIBES A BUOY AND BLOCK. EVALUATOR RECOMMENDS CHARTING A 44 OBSTN AS SURVEYED. (ENT