Report of the Department of Lands and Forests for fiscal year ending March 31, 1950 



Page 44 



Pollution 



Investigations of the following lakes and streams were made to evaluate the 

 effects of domestic and industrial wastes on fisheries, and to indicate corrective control 

 measures which would be beneficial in obtaining desirable water quality objectives. 



Period: April 1, 1949, to March 



31, 1950. 

 Location 



Balmer Creek at Red Lake. 

 Beardmore Creek at Acton. 

 Burnt River at Kinmount. 

 Credit River at Port Credit. 

 Duffin's Creek at Ajax. 

 Effingham Stream in Welland 



County. 



Gingrich Creek in Waterloo 



County. 

 Humber River at Woodbridge. 

 Lake Nipigon in Orient Bay. 

 Leskard in Durham County. 

 Lynn River at Simcoe. 

 McGregor's Creek at Chatham. 

 Moira River at Corbyville. 

 Muskoka River at Baysville. 

 Napanee River at Strathcona. 



Lake Ontario at Mimico. 

 Lake Ontario at Port Union. 

 Bay of Quinte at Bath. 

 Spanish River at Espanola. 

 Sydenham River at Owen 



Sound. 

 Thames River at Ingersoll. 

 Thames River at Chatham. 

 Toronto Harbour. 

 Trent River at Trenton. 

 Turkev Creek at Petrolia. 



Table No. 26 



COMPARATIVE ST.\TEMENT OF THE YIELD OF THE FISHERIES 



OF ONTARIO BY LAKE 



