• The project was completed two months ahead of schedule and under budget.
  • The project included technical equipment, such as an ozone generation system and a sodium hypochlorite generation system.

As an expert in water treatment facilities and alternate project delivery methods, Sundt applied a Construction Manager At Risk method to build the Santan Vista Water Treatment Plant in Arizona. Phase I of the project was to build a 24 milliion-gallon-per-day (MGD) surface water treatment plant including nine miles of pipelines, ranging from 6-inches to 72-inches in diameter, raw water intake, ballasted flocculation system, ozone system, 24 MGD filter system, equipment gallery, 5 MG below grade concrete reservoir, tri-zone 32 MGD finish water pump station, 12,000-square-foot administration-maintenance building, electrical switch yard (including 3 MW standby generators), chemical feed and storage facility, backwash basin, equalization basin and drying beds, plus landscaping and site improvements to the 40-acre site. For Phase I, we established a guaranteed maximum price that was 15% lower than the project’s original estimate and completed the project within two years. Our team self-performed civil and concrete work, equipment setting and the reservoir and pump station.


When it came time to expand the facility 10 years later, Sundt returned for Phase II and expanded the plant from a 25 million gallon per day (MGD) facility to 48 MGD. Major components of the expansion included new underground pipelines, new ozone contactor, new sand ballasted flocculation trains and more. Our self-perform work included mass excavation, underground utilities, structural concrete, process mechanical and process equipment.