Waste Water Department, Yanbu is responsible for dealing in the business line items for the community as well as industries as described below;

Waste Water Collection System
There are 52 lift stations in Yanbu Industrial City. Thirty six lift stations are designed to collect sanitary wastewater and sixteen lift stations are designed to collect industrial wastewater. The main lift stations having three pumps and other lift stations having two pumps. Total length of the sanitary waste water collection network is 484 KM and industrial waste water collection network is 54 KM.

Wastewater Treatment Plants
The Yanbu Industrial City has been provided with two wastewater treatment plants. Both the plants are located in wastewater treatment complex in the heavy industrial zone.

SWTP
The Sanitary Wastewater Treatment Plant (SWTP) is designed to treat sanitary sewage generated by community and industrial areas to provide safe irrigation water for the landscape development. The design capacity of the plant is 27,000 cubic meters per day, while the present daily inflow to the plant generated by the community is around 15,000 to 20,000 cubic meters per day.

IWTP
The Industrial Wastewater Treatment Plant (IWTP) is designed to treat pretreated industrial wastewater from Yanbu Industrial City and provide reclaimed water for fire fighting and other industrial uses. Total design capacity of the plant is 24,000 cubic meters per day. The plant is designed to remove contaminants from the wastewater to the extent that it can be reused by industry and/or discharged to the Red Sea, without causing significant environmental impact to the coastal marine water quality and the sensitive coral reef ecosystem. The present daily inflow to the plant is around 13,000 to 15,000 cubic meters.

Process Water
Process water is pumped from three storage tanks in the power and water desalination plant to the industrial zone users. The storage tanks capacity is 120,000 cubic meters. Total length of the network is 34 KM. Process water pumping to industries at a pressure 5 bar, conductivity 7 umhos/cm and PH 7.5. The average consumption of process water is 39,000 cubic meters per day.

Potable Water
The pumping station in PSDP having three storage tanks is essentially devoted to the filling up of eight storage tanks at sites PS-1 and PS-2. The total storage capacity of potable water is 280,000 cubic meters. Total length of the network is 527 KM. The pressure at PSDP and PS1 is 3 bars while it is 4 bars at PS2. The average consumption of potable water is 40,000 cubic meters per day. Potable water is analyzed in different locations to ensure its quality.

Pumping Station at Sanitary Plant (PSSP)
The station is designed to supply irrigation water to the system. It is equipped with 3 identical pump units rated 1,200 cubic meters per hour. at a pressure 4.0 bar. There are 4 storage tanks; the total capacity is 80,000 cubic meters. Total length of irrigation water network is 107 KM.

Pumping Station at Industrial Plant (PSIP)
The station has two fixed speed pumps and two variable speed pumps to provide reclaimed water for fire fighting and other industrial usage. There are two storage tanks at a capacity 12,000 cubic meters each. Total length of reclaimed water network is 45 KM.