Section k3 

 PCET HUEKEME, CALIFORNIA -- U. S. NAVAL STATION 



Al^5..01 Location of the Test Station and Test BoardB 



Two test boards of the panel type were Installed June 15, 19l»-^, 

 at different locations in the harbor of what was then the Advanced Base 

 Depot, but is now the U. S. Naval Station at Port Hueneme south of Ventura, 

 California. The first of these boards, designated as USNPH-1, was in- 

 stalled under the 1ST Wharf B between bents 12 and 15 from the shore end. 

 The second, designated as USKPH-2, was installed under Wharf No. 1, 50 ft 

 east of the west end of Transit Shed No, 1. No untreated wood piling is 

 in place in the harbor, and both test boards are located approximately 

 6 ft from creosoted piling. The operation of these test boards is being 

 continued, and the results have been summarized to the end of 19^7. 



It was stated on December 26, 19^'+> that structural timbers 

 recently removed from Wharf D, located near Wharf B, were found to be 

 in an advanced stage of destruction from Teredo action. This material 

 was Douglas fir, surface -treated with creosote, which was installed in 

 19^0, It was anticipated that several more timbers would have to be 

 removed and replaced with new material. 



Decomposition during transit had progressed to such an extent that 

 the identification of fouling organisms was impossible on 2 of the test 

 panels of Test Board No. 1 and on one test pemel of Test Board No. 2. 



Al+5,02 Hydrographlc Data 



1. Ibst Board No. 1 (USHPH-l) . The depth of water where this 

 test board was Installed was Ik-.^ ft at mean low tide; the tidal range 

 varied from about 2.7 to 8.1 ft; the current velocity was said to be 

 zero. The temperatxire of the water at the time of installation was 

 57*^ ^. In samples of ocean water taken near Test Board No, 1 on 

 November 21, 19^5> the sample analysis showed a salinity of 30,725 

 ppm; and In samples taken February 22, 19'+6, the sample analysis showed 

 a salinity of 51,600 ppm. In regard to pollution, it was stated on, 

 July 12, 19kk, that the untreated sewage of the U. S, Naval Base is 

 released into the harbor at a point approximately 200 ft from the 

 test board for a period of h hours per week. However, in April 19^6, 

 it was stated that water pollution is regarded as light and that waste 

 lines discharging into Hueneme Harbor comprise only the following: a 

 line from 3 automotlle wash racks passing approximately 3 gallons per 

 minute of waste containing chemicals used for washing cars; a leaching 



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