The Al Ayaat Wastewater Treatment Plant in Al Ayyat City, on Rahawy drain, Giza, was built with a capacity of 30,000 m3 to 60,000 m3 per day. This project consists of civil and ordinary works that include digging in dry clay soil for building constructions, building reservoirs and basins, and replacing and backfilling with clean. It also includes sand silo tanks, inlet tanks, sedimental tanks, aeration tanks, belt press filter, drainage pumps, and air blowers. As well as finishing works for buildings, water, irrigation, fire, sewage, asphalt pavement, sidewalks, and the construction of a concrete wall around the station. Additionally, it includes operation and maintenance services for one year along with the supply of spare parts for five years.