Chart correction N48/21 — chart 94427
94427 2Ed. 06/23/90 LAST NM N43/21 N48/21 (Panel C) Add Depth 3.2 meters Obstn [K41] 37°30′06.2″N 122°08′31.3″E Depth 4.6 meters Obstn [K41] 37°30′08.6″N 122°08′40.0″E (See N34/19) (40(1411)21 Tianjin)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 06/23/90
Reference information — always verify against official Notices to Mariners before navigation.