Problem:
You are hired to evaluate the adequacy of a wastewater treatment plant (WWTP) to meet a city's projected needs. The WWTP was designed to handle 2.5 MGD and is currently running at 80% capacity during the annual maximum day, servicing a city of 38,500 people with 26.7 mi of sewers. During the next 10 years, it is expected that new residential developments for 15,000 people will be built, along with an additional 6.5 mi of sewers. The sewer is assumed to leak 8500 gpd/mi. (a) Project the maximum daily demand for the WWTP after the new development is built. (b) If the WWTP must be able to meet the maximum daily demand, should its capacity be increased?
Note: Please explain comprehensively and give step by step solution.