24 FISH AND GAME COMMISSION 



FOOD AND BEVERAGE PLANTS 



A deferment on installation of recommended screening facilities was 

 granted to fruit and vegetable canners. This unfortunately extended the 

 date for compliance with the law beyond the time that equipment could 

 be purchased under Avartime restrictions. However, while permanent 

 corrections have not been attained, a marked improvement was effected 

 through insistance on improvised or manually operated equipment which 

 reduced pollution, particularly from asparagus plants and delta area 

 packing sheds. 



At Monterey and San Francisco fish processing plants, a slow but 

 continued improvement was secured. These included enclosures to 

 collect waste, screening facilities, improved settling tank design, and two 

 by-product recovery plants for stick-liquor. War restrictions and 

 priorities deferred some anticipated construction, the largest of these 

 being a City of Los Angeles project for treatment of Terminal Island 

 plant wastes, which reach a peak flow of 25,000,000 gallons daily. 



Other food and beverage plants including sugar refineries, dairy and 

 milk plants, wineries, etc., where prior work of the Detail had estab- 

 lished a reasonable degree of control, required continued inspections 

 and some enforcement action. One bay area sugar refinery completed 

 a treatment plant installation prior to materials restrictions and a 

 southern California concern installed settling basins in lieu of permanent 

 mechanical equipment. In the mne industry there were indications 

 that the problem of still slop disposal would be minimized through use to 

 recover tartrate by-products. 



SAWMILLS 



War time demands greatly accelerated lumber production particu- 

 larly in the north coast area, thus requiring more inspection time and 

 enforcement where pollution and stream obstructions were not eliminated 

 upon request. 



MINING 



Due to government declaration of the nonessential character of 

 gold mining and inability of owners to secure equipment replacement, 

 activity in this line was rapidly declining as the biennium drew to a close. 

 Thus, with many potential sources of pollution disappearing, the patrol 

 of mining areas was discontinued and the personnel transferred to more 

 essential coastal work. 



Earlier in the biennium, ordinances adopted by Trinity and Sonoma 

 counties and passage of a State law requiring clarification of tailings from 

 placer mines within the Sacramento and San Joaquin watersheds had 

 aided in control of mining pollution. A committee of miners and sports- 

 men with representatives of the corresponding State agencies failed to 

 reach an agreement on amending Section 482, but a temporary injunc- 

 tion brought by Del Norte County against certain Klamath River 

 dredges served to improve the clarity of that stream. 



Special efforts were made to safeguard salmon spawning tributaries 

 of the Sacramento River in the Shasta Dam area and concerns furnishing 

 sand and gravel for the Shasta and Friant dams took steps to prevent 

 silting of the Sacramento and San Joaquin rivers. 



