132 



REPORT OF THE FISH AND GAME COMMISSION, 



The Standard Oil Company at Richmond has spent over $105,000 in 

 the construction of separators and canals to trap waste oils and sludge. 

 Of this amount $50,000 has been expended during the last two years. 

 The main separator is built of concrete, is 240 feet in length, 70 feet in 

 width, and 22 feet in depth, handling 20,000,000 gallons of water and 

 oil daily. Fifteen men are required to attend to the separators to skim 

 oil and handle tidal gates. The monthly pay roll of these men is 

 $1,500. In addition to the concrete trap there are about one and one- 

 half miles of ditches, averaging thirty feet in width, equipped with 

 baffles to catch any oil which might not otherwise be trapped. These 

 ditches also handle the 10,000,000 gallons of water which pass through 



Fig. 81. Butters filter and filter leaf at plant of Pacific Gas and Electric Company at Oak- 

 land. Photograph by A. M. Fairfield. 



the asphalt plant dail3^ All valves on oil lines on the wharf are sup- 

 plied with tubs to catch the drip, and loading hoses are drained into 

 drunxs. The accumulation is then pumped back into the refiner.y. 



The Union Oil Company has expended several thousand dollars in 

 construction and repair work at the Oleum refinery, and contemplates 

 further expenditures of some $25,000. The company plans to continue 

 its work until satisfactory conditions are obtained. 



The Shell Oil Company has built adequate oil traps at the new 

 refinery at Martinez and no trouble from the disposal of waste oil is 

 expected. 



The Associated Oil Company has ample settling area for waste oils 

 on its property at Avon and has experienced no difficulty in keeping 

 such waste out of state waters. This company, as well as others, has 

 agreed to notify the Fish and Game Commission immediately by tele- 

 phone when accidents occur which result in the depositing of oil upon 

 any waters, thus giving the commission an opportunity to make imme- 

 diate investigation of the cause of such accident, and to estimate the 

 probable damage. 



