THIETY-PIRST BIENNIAL REPORT 75 



ing the issuance of any additional permits to drill for oil on state-owned 

 beaches or tidelands. 



The lumber industry has received the attention of the Bureau with 

 the result that ill effects from debris in mill ponds have been minimized 

 and wastes have not been allowed to pass on down stream. In most of 

 these cases the costs of improvements were not great, though fish life 

 in the streams below will be greatly benefited. 



Other lines of industry have been contacted and practically in all 

 cases remedial measures were taken by the concerns where pollution 

 was occurring. Gas plants, steel mills, fiber plants, laundries, mines, 

 packing plants, wineries, canneries, and creameries indicate the range 

 which this work takes. Each is a problem by itself and must be so 

 considered. 



RECOMMENDATIONS 



The continued further diversions of water in this state increase the 

 problem as to the preservation of fish life and it would appear that a 

 study of possible ways to minimize the damage accruing from the con- 

 tinual encroachment on fish life by those diversions would be of benefit 

 with the view of obtaining the greatest benefit from the diversions and 

 at the same time utilizing or retaining these waters for the preserva- 

 tion and addition of fish life. 



I would recommend that a study of sections 629 and 637 of the Penal 

 Code be made with a view of simplifying legal action in the installation 

 of fish screens and fish ladders, respectively, when same is required, .so 

 that such installations would be expedited. 



