Chart correction 52/22 — chart 18650

★18650 58Ed. 01/01/17 LAST NM 50/22 52/22 Delete Purple composite line between 37°48′48.2″N 122°21′35.0″W 37°48′27.0″N 122°21′42.4″W (See 21/19) Change Legend to "SECURITY ZONE 165.1189 (see note A)" 37°48′37.0″N 122°21′22.5″W Add Buoy "1" W, Fl W 4s 37°48′42.4″N 122°21′35.0″W Buoy "2" W, Fl W 2.5s 37°48′27.0″N 122°21′35.0″W Purple dashed line (security zone limit) [N1.2] bound by shore joining 37°48′48.2″N 122°21′35.0″W 37°48′27.0″N 122°21′35.0″W 37°48′27.0″N 122°21′42.4″W (45/22 CG11)

Source: NGA U.S. Notice to Mariners · edition: 58Ed. 01/01/17

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