Section 5 

 BAR EARBCE, MAIRE — U. S. NAVAL SECTION BASE 



A5 . 01 Location of Teat Station and Test Board 



A test "board of the panel type was installed at the U. S. Naval 

 Section Base at Bar Earhor, Mt. Desert Island, Maine, on June 12, 19^^^ 

 and operated until September 12, 19^4. No fiirther panels were removed 

 after the latter date, and the operation of the test hoard was discon- 

 tinued on October k, 19^)-^, hecause of the termination of naval activi- 

 ties at this hase. No information was available as to the exact location 

 of this test hoard (designated by the symbol USNBH-l). 



A3 . 02 Hydrographic Data 



The depth of water where the test board was Installed was l6 ft; 

 the tidal range was 10.5 ft; the current velocity was negligible. The 

 teriperature of the water at the time of installation was ^1-8° F. The 

 degree of pollution was not determined, but the nearest sewage outlet 

 was 5^5 ft from the site of the test board. 



A5 . 05 Marine Borers 



1. Teredinidae . No Teredlnldae were recorded in any panel of 

 either the control or test series at any time during the '^-man.th period 

 for which the test board was operated. 



2, Llmnorla . Llmnorla were recorded in small numbers on the 

 control panels removed on July 11 and August 11. Llmnorla were also 

 found on the single test panels removed in August and September after 

 they had been submerged for 2 and 5 months, respectively. The attack 

 never rated more than a trace. 



A5 . Ok Fouling Agents 



1. Silt . Silt occurred on both the control and the test panels. 

 The deposits rated as traces on the control panels and mostly light an 

 the test panels. 



2. Algae . No algae were present. 



25 



