9-ft. tall x 8-in. concrete foundation wall sitting on a footing weighs or applies a load to the footing of 9 ft. x 8 in./12 in./ft. x 150 pcf = 900 lbs./lin. ft. Load capacity of footing.

Other types of forming systems resulting in concrete walls not in compliance with this section and Table R608.3 shall be designed in accordance with ACI 318. ... Concrete foundation walls. (a) ...