At Spencon, this discipline is applied mainly in the water/waste water systems, sanitation and irrigation.

Spencon provides a number of construction services for the waste/water treatment plant industry and also specializes in managing site work, infrastructure, utilities, underground piping and pond construction.

This process includes the design, supply, installation, testing and commissioning of water, wastewater and industrial wastewater treatment plants.

Clean water is essential for everyday life. Water treatment plants treat water so that it is safe to drink. Liquid waste treatment plants, also known as wastewater treatment plant, remove harmful pollutants from domestic and industrial liquid waste so that it is safe to return to the environment.

Water is pumped from wells, rivers, streams, and reservoirs to water treatment plants, where it is treated and distributed to customers. Liquid waste travels through customers' sewer pipes to liquid waste treatment plants, where it is either treated and returned to streams, rivers, and oceans or reused for irrigation and landscaping.