Chart correction N30/20 — chart 93721

93721 7Ed. 3/30/19 LAST NM N29/20 N30/20 Delete Depth 8.1 meters Obstn 22°37′37″N 113°44′07″E Depth 3.7 meters Wk 22°37′33″N 113°43′29″E Depth 7.4 meters and enclosing approximate depth contour (10-meter) in vicinity 22°38′10″N 113°44′00″E Danger circle “Obstn Rep (2017)” (PA) 22°40′17″N 113°45′42″E Depth 8.2 meters R 22°40′01″N 113°43′13″E Depth 5.8 meters R 22°39′53″N 113°43′51″E Depth 8.1 meters R 22°39′49″N 113°43′34″E Substitute Depth 7.9 meters Wk [K26] for depth 5.4 meters Obstn 22°40′36″N 113°42′48″E (21(734, 735)20 Tianjin)

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

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