5. A city has a population of 50,000. Each person in the city uses roughly 130 gallons of water per day. 80% of the water used is turned into wasteewater with a BOD concentration of 150 mg/L. The wastewater treatment plant has a hydraulic residence time of 3 days. The effluent discharge concentration from the wastewater treatment plant is 35 mg/L. How many grams of BOD is destroyed within the wastewater treatment plant.