Chart correction 31/20 — chart 92020
92020 2Ed. 2/8/86 LAST NM 29/20 31/20 Delete Depth 1053 meters 10°04.2′N 121°33.8′E Substitute Depth 36 meters for 230 meters 10°22.9′N 121°58.1′E and extend depth contour (200-meter) S to enclose Add Depth 113 meters enclosed by depth contour (200-meter) centered 10°03.8′N 121°34.1′E “Chemical Dumping Ground” area [N24] bound by purple composite-line circle, radius 2 miles, centered 10°06.9′N 121°36.1′E (1(10)17 Manila; 17(1813)12, 12(1346)13 Taunton; UKHO ARCS 4480-0)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 2/8/86
Reference information — always verify against official Notices to Mariners before navigation.