Chart correction N18/20 — chart 93721

93721 7Ed. 3/30/19 LAST NM N17/20 N18/20 Delete Depth 3.9 meters Obstn 22°31′04″N 113°48′59″E Depth 3.7 meters Obstns 22°31′35″N 113°48′34″E Depth 5.4 meters R 22°31′41″N 113°48′53″E Depth 5.6 meters, St 22°08′09″N 113°43′06″E Danger circle and buoy in vicinity 22°07′19″N 113°35′04″E Dangerous wreck “Rep (2004)” (PA) 22°03′59″N 113°56′02″E Depth 4.9 meters, blue tint and enclosing depth contour (5-meter) in vicinity 22°16′36″N 113°49′11″E Depth 4.6 meters, blue tint and enclosing depth contour (5-meter) in vicinity 22°16′39″N 113°49′01″E Purple dashed line (anchorage area limit) joining 22°16′11″N 113°49′20″E 22°15′11″N 113°48′56″E 22°14′41″N 113°49′44″E Change Legend to “Lantau Island No 1” 22°15′44″N 113°49′37″E Add Legend “Buoyed Channel” between 22°32′24″N 113°38′54″E 22°31′32″N 113°43′17″E Legend “Less Water” between 22°31′39″N 113°50′01″E 22°31′07″N 113°50′19″E Depth 5.3 meters 22°17′12″N 113°50′45″E Depth 9.7 meters 22°16′03″N 113°49′37″E and extend depth contour (10-meter) S to enclose Purple dashed line (quarantine anchorage area limit) [N12.8] between 22°16′11″N 113°49′20″E 22°14′41″N 113°49′44″E Quarantine anchorage symbol [N12.8] 22°15′56″N 113°49′46″E Pilot station symbol [T1.1] 22°15′29″N 113°49′47″E (23(50)19, 6(12, 13)20 Hong Kong; 36(1504)18, 7(186, 187), 43(1394)19, 10(246)20 Tianjin; 9(1030)20 Taunton)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 3/30/19

Reference information — always verify against official Notices to Mariners before navigation.