THIRTIETH BIENNIAL REPORT 39 



Following is a brief summary of the work accomplished at the dif- 

 ferent hatcheries and recommendations : 



MT. SHASTA HATCHERY 



The work of making the much needed repairs at this hatchery began 

 on April 19, 1926, and was completed June 26, 1927. All ponds had 

 the old board lining removed and replaced with new cedar planks and 

 redwood posts. Posts were tied through to posts in adjoining ponds 

 with strap iron. All walks between the ponds were widened and filled 

 with earth. The old drains were removed from the ponds and new 

 pipe drains put in. The pipe was from 8 to 16 inches depending upon 

 the size of the ponds. Each pond has an iron gate valve at the end of 

 the drain pipe to lower water when necessary, and are so arranged that 

 each pond may be emptied without disturbing any other pond. Gate 

 valves and pipe where it enters each pond were braced with concrete 

 blocks set in the pond bank. 



One concrete settling tank was built to supply water to Hatchery E. 

 Also a concrete diversion tank was built to supply water to Hatcheries 

 C and D. New 16-inch pipe lines were laid from the concrete tanks to 

 the hatcheries with gate valves to regulate the water flow. Iron rail- 

 ings were placed around each tank. 



Hatchery A had new supports and drains put under floor, and the 

 inside and outside were painted, as well as the roof being repaired. 



Hatchery B was entirely remodeled. New studding was put in 

 where necessary, rustic outside and ceiled inside, new iron roof, and 

 new doors. The building was also painted inside and out. 



Hatchery C was also entirely remodeled with new studding and 

 rafters wherever necessary. A new floor was put in, new rustic out- 

 side and the interior ceiled. A new iron rcof was put on and new 

 drains under the hatchery and new underpinning. The building was 

 painted inside and out. 



Hatchery D was built entirely new upon a different site. The build- 

 ing was ceiled inside, rustic outside and painted inside and out. The 

 roofing is of iron. About half the hatching troughs are new. 



Hatchery E was rebuilt with new studding and rafters where neces- 

 sary, ceiled inside and rustic outside. New troughs and head troughs 

 were installed as well as a new floor. New drains were put in and new 

 underpinning under the building. The building was painted inside 

 and out and new doors and windows put in. The barn has a new roof 

 of corrugated iron and new rafters were put in where necessary. 



Two new concrete septic tanks were built with outflow pipe to lower 

 end of hatchery grounds. One new concrete settling tank was built to 

 supply water to Hatchery E through a 16-inch pipe, and an iron railing 

 put around the tank. 



One new concrete diversion tank was built to supply water to hatch- 

 eries C and D. The water is conveyed through 16-inch pipes, and the 

 tank is surrounded with an iron railing. 



A new refrigerating plant and feed room was built on the site 

 of Old Hatchery D. The refrigerating plant is a Cyclops ice machine 

 with a capacity of three tons — one ton for ice and two tons for refrig- 

 eration. There is one cold room for storing ice and holding fish food, 

 and one cooling room for keeping prepared food. The cooling plant 

 is entirely automatic. The building has a concrete floor, and sills 



