The city of Stay at Home counted 150,000 people in the 1970s,
when its wastewater treatment plant was built. Because of a recent
economic boom, the city has been growing at a fast rate and new
developments will bring the total population to 350,000 people
within 10 years from now. There is no more footprint available to
expand the existing plant, which is land locked in the middle of an
industrial zone. The city council, therefore, decided to build a...