Section U2 

 PORT CHICAGO, CALIIOENIA — U.S. NAVAL MAGAZIME 



AU2.OI Location of the Test Station and Ibst Boards 



Tbree test toards of the panel type were Installed January 5^ 19^5^ 

 at the U. S. Naval Magazine at Port Chicago, California. Ihis installation 

 is located west of where the Sacramento and San Joaquin Elvers enter Suisun 

 Bay, east of the Mare Island Naval Shipyard on San Pablo Bay at Vallejo, 

 The first of these test hoards, designated by the symbol USHMI-5, . is located 

 near the northeast comer of the Barge Pier. The second, designated by the 

 symbol UBHMI-6, is located about 65 ft west of the northeast comer of Wharf 

 Wo.,,2, and the, third, designated by the symbol USNMI-7, is located about 25 

 ft wefet;;^of the northeast comer of Wharf No. 5. The second of the boards 

 is east'6f the first, and the third Is east of the second. The test board 

 at the Barge Pier was found to be missing in March 19^7^ so a new board was 

 installed on April ^t-. The operation of these test boards is being continued, 

 and the results of these tests have been summarized to the end of 19^7. 



AU2 .02 Hydrographlc Data 



1. Test Board No. 1 (USNMI-^ X The depth of water where this test 

 board was installed is 55 ft below mean low water. The board was installed 

 with its top at a depth of I8 ft and its lower end at a depth of 2k ft be- 

 low nean low water. The usual range of tide was U,5 ft, i.e., from 5.5 ft 

 to 0.8 ft above low water. Ihe highest estimated tide was 8.0 ft above low 

 water, and the lowest estimated tide was 2.0 ft below low water. The 

 estimated extreme variation in the water height was 10.0 ft. Ihe strength 

 of current was not reported. Water temperature at the time of Installation 

 was k6° F. A sample of channel water taken In the lujmedlate vicinity of the 

 test board on January 5, 19^5, contained 862 ppm of salt. Ihe water was 

 very clear. 



2. Test Board No. 2 (USNMI-6) . The depth of water where this 

 test board was Installed was 25t ft below low water. The board was in- 

 stalled with its top at a depth of 21 ft and its lower end at a depth of 

 27 ft below water. The tidal range, temperature, and pollution were the 

 same as data given for Test Board No. 1, A sample of water taken In the 

 Immediate vicinity of the test board on January 5, 19^^, contained 217 PPm 

 of salt. 



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