doors on both sides of the room provide a pas- 

 sageway of flexible size to and from the build- 

 ing. Sections of the guard rail can be removed 

 to provide access from the dock or river when 

 supplies, equipment, or fish are brought aboard. 



Laboratories 



Two wet laboratories (total floor space 450 

 sq ft) are located in the metal building ( Fig. 7 ) . 

 Each is equipped with 24 50-gal portable 

 wooden test tanks, which can be manipulated 

 to provide a wide range of test requirements. 

 Each tank has temperature and flow controls 

 for water and controls to provide constant 

 light. Water from the storage tanks enters the 

 test tanks through mixing valves and then 

 drains into the river. Each test tank can be 

 supplied with a complete exchange of water 

 within 1 hr. A number of separate tests can 

 be carried out simultaneously in these two lab- 

 oratories. Each wet laboratory contains a desk, 

 metal storage cabinet, several plexiglass aquar- 

 ia, and equipment for monitoring water tem- 

 perature. 



A biological laboratory (110 sq ft of floor 

 space) contains storage cabinets and counter 

 space for binocular and monocular micro- 

 scopes, a balance, a refrigerator, and devices 

 to count plankton and to analyze fish stomach 



samples. 



A chemistry laboratory (80 sq ft of floor 



space) contains analytical, chemical, and phys- 

 ical monitoring equipment, two storage cabi- 

 nets, and a sink. The equipment includes a 

 water distillation unit, pH meter, O2 meter, 

 Van-Slyke gas-analysis unit, atomic absorption 

 spectrophotometer with attachments, glass- 

 ware, and miscellaneous chemical apparatus. 

 This space also serves as a photolaboratory and 

 darkroom. 



Office 



The office (225 sq ft) contains three desks, 

 filing cabinets, book shelves, and radio commu- 

 nication equipment. Access to the office is from 

 the aft deck or the aft entrance (Fig. 8). 



Loading and Display Room 



An aft entry, port and starboard, provides 

 access to an open room (over 1,000 sq ft of floor 

 space) that is used for loading and display. 

 This section of the metal building has sliding 



doors on-both sides and a sliding roof. Six dis- 

 play aquaria are located here, as well as re- 

 cording instruments for physical monitoring 

 of the river water. The equipment includes a 

 metal beam and an overhead trolley crane. 

 Space for storing life jackets and cleaning 

 equipment is also available. A ladder well leads 

 to the lower deck. 



Aft Deck 



Sensing units for monitoring water temper- 

 ature and flow are suspended from the aft 

 deck. This deck space has been reserved pri- 

 marily for future installation of hydrologic and 

 meteorologic instrumentation. 



LOWER DECK LAYOUT 



Over 2,100 sq ft of floor space on the lower 

 deck was made available by cleaning and con- 

 verting four "ballast" tanks into compart- 

 ments. The four compartments are used for 

 storage, maintenance, and work areas. The 

 lower deck is about 4 ft below the water line. 

 Water supply and drain lines are suspended 

 from the ceiling in the lower compartments to 

 provide access for repairs, modifications, and 

 inspection. 



Storage Compartment 



The forward compartment (576 sq ft) is 

 used for storing hardware, nets, supplies, and 

 standby equipment. 



Maintenance Shops 



About 1,000 sq ft of floor space in the two 

 center compartments is used for welding, wood- 

 working, and outboard motor shops (Fig. 9). 



The welding shop contains an arc-welder, 

 acetylene torch, power grinder, and work 

 bench. The woodworking shop is equipped with 

 power and hand tools, in addition to a 9-in ra- 

 dial arm saw and 18 ft of counter space. Equip- 

 ment in the outboard motor shop includes a 

 work bench, motor rack, test tank, and special- 

 ized testing aids and equipment. 



Blowers are installed in each shop for proper 

 ventilation. The access area to the lower deck 

 is adjacent to the woodworking shop. 



