Chart correction N20/22 — chart 93721

93721 7Ed. 03/30/19 LAST NM N18/22 N20/22 Delete Stranded wreck (PA) 22°30′23″N 113°50′02″E Depth 6.3 meters Wk 22°36′17″N 113°45′08″E Dangerous wreck "Rep (2020)" (PA) 22°30′41″N 113°49′00″E (See N18/21) Substitute Depth 5 meters Wk [K26] for depth 5 meters Obstn 22°19′28″N 113°50′27″E Dangerous wreck [K28] with legend "2 Wrecks" for depth 3.8 meters Obstn 22°21′02″N 113°51′26″E Depth 8.6 meters Obstn [K41] for depth 12.7 meters 22°29′53″N 113°49′45″E Depth 7.8 meters Wk [K26] for danger circle "Obstn" (PA) 22°30′15″N 113°48′52″E (See N41, N46/21, N18/22) Add Buoy BRB, pillar, double ball topmark, Fl(2) W 5s [Q130.4] 22°35′04″N 113°40′21″E Depth 12 meters Obstn [K41] 22°31′09″N 113°48′04″E Depth 3.7 meters Wk [K26] 22°22′19″N 113°51′56″E Depth 13.7 meters Wk [K26] 22°34′51″N 113°46′22″E Depth 10 meters Wk [K26] 22°30′48″N 113°48′58″E Depth 7.6 meters Wk [K26] 22°31′06″N 113°47′07″E Depth 8.8 meters Wk [K26] 22°30′41″N 113°47′04″E Depth 3.7 meters Wk [K26] 22°30′38″N 113°49′54″E Depth 14.6 meters Wk [K26] 22°31′03″N 113°48′27″E Depth 9.3 meters Wk [K26] 22°30′39″N 113°46′47″E Depth 2.6 meters Wk [K26] 22°21′00″N 113°51′33″E Depth 6.4 meters Wk [K26] 22°30′13″N 113°49′38″E Depth 3.9 meters Wk [K26] 22°30′34″N 113°49′22″E Depth 3.5 meters Wk [K26] 22°20′25″N 113°58′44″E Depth 1.9 meters enclosed by depth contour (2-meter) centered 22°30′09″N 113°48′37″E Depth 1.7 meters enclosed by depth contour (2-meter) centered 22°30′16″N 113°47′34″E (8(200), 13(430, 432, 434)22 Tianjin; 6(12)22 Hong Kong)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 03/30/19

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