A plant’s aeration basin has a measured liquid volume of 108,000 ft³. The average flow to the aeration basin is 2.6 MGD and the primary effluent BOD entering the aeration basin is 180 mg/L. The aeration basin MLSS is 3,000 mg/L (given for process context). Calculate the organic loading rate (OLR) to the aeration basin in lb BOD/day per 1,000 ft³. Use: lbs/day = (mg/L) × (MGD) × 8.34 and 1 ft³ = 7.48 gal.