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On December 19, the Austin Water Treatment Plant No. 4 (WTP4) project celebrated the opening of the new facility during the official ribbon cutting ceremony. Austin Mayor Lee Leffingwell and City Manager Marc Ott commemorated the opening of the plant along with Austin Water Director Greg Meszaros and dozens of others who played a role in the successful completion of this historic project.

Austin Water MWHAustin Mayor Lee Leffingwell shares his thoughts on the plant opening, “The new facility is an important step forward for Austin. As we grow, it’s vital that we invest in infrastructure that will assure the security, sustainability, and reliability of our water resources.”

In November, the project reached a major milestone when it roared to life and water began to flow through the facility. The startup was momentous as the first drink of treated water was taken at WTP4 before it went out to the Jollyville Transmission Main and distributed to the City of Austin.

The new Austin WTP4 takes raw water from Lake Travis and connects to a pump station via a 9-ft finished diameter tunnel. From this pump station, raw water is pumped up to the water treatment facility.

This environmentally conscious project provided a significant local economic impact while maintaining an excellent safety record on job sites that ranged from tunneling miles underground to working above and below the waters of Lake Travis in environmentally sensitive areas. The project team reached a million man hours without a lost time incident.

As the construction manager-at-risk, MWH Constructors partnered with more than 208 subcontractors, 88 percent of which were based in the local and regional area. More than 25 percent of the subcontractors used during preconstruction activities were local minority and women-owned businesses.

MWH Constructors also met the City’s standards by integrating innovative con­struction concepts for sustainability and environmental mitigation. An environmental commissioning process was implemented to help protect the nearby environmental resources, sensitive species, and their habitat in recognition of the environmental sensitivity of the site. Environmental inspectors were on site throughout the project and had the authority to stop work to ensure environmental compliance. The Administration Building and the Maintenance Building are LEED Silver and include rainwater collection on both. These building are also designed to accept solar panels in the future.