.. ,,§ectlpn kk. . 



SAN PEDRO,,, PAmoilqk,j^- 'fcMIKAL. .I^LAMP.J^AYAJ^ SHIP YARD 



Al^l^.Ol Location of ths Test Station and Test Board 



A test Isoaird of the panel type was Installed June l^*-, 19^, at the 

 U. S. Operating Base, now the Terminal Island Naval Shipyard at San Pedro, 

 California. It was installed at the south end of Approach Pier No. 1 at 

 the U. S. Naval Drydocks, and was designated "by the symbol USNTI-1. The 

 operation of this test "board la 'being continued. The results have "been 

 Bummarlzed to the end of 19^7. 



Al|U.02 Hydrographic Data 



The depth of water where the test hoard was Installed was kh 

 ft M.L.W. datum, and the tidal range was 8 ft (plus or minus). The velocity 

 of the current was stated to he approximately 500 ft per hour (various 

 directions) on March 15, 19^6. The temperature of the water at the time 

 of Installation was 6k° F. The following figures concerning salinity, 

 pH reaction, and pollution were given on June 2k, '19^'<-, hased on a sample 

 of sea water taken from the end of Pier No. 1 at the east ladder and 

 at a depth of 10 ft: 



The condition of the water varied at frequent intervals, helng variously 

 reported as clear, fairly clear, murky, sllty from dredging operations 

 (June ikf 19^6), with sewage, oil, and other dehris on the surface, and 

 very dirty with oil and sewage. 



Further data on teii5)erature and salinity are given in the following 

 tables ; 



199 



