H9671/77--OPR-411-FA-77; 1:5,000: PIER 4 HAS BEEN REMOVED; HYDRO REVEALED     
 GENERAL SHOALING (TO 27 FT) AS WELL AS SUSPICIOUS SPIKES; AREA OF FORMER PIER
 SWEPT BY OTTERBOARD TO 20 FT WITH ONE HANG AT LAT 33-45-13.6N, LONG          
 118-13-53.7W;