South Fork's intake structure is located on the Clackamas river at river mile 1.5.  The facility includes four raw water pumps and miscellanous accessory equipment.  The two larger pumps have a capacity of 10 million gallons a day, while the two smaller pumps have a capacity of 4 millsion gallons a day. 

Raw water from the river is screened to remove leaves and other debris and then pumped through a 27-inch diameter concrete cylinder pipe about 1850 feet to the water treatment plant where it is treated.