At its regular meeting on May 5, the Johnson County Board of County Commissioners unanimously approved authorization of funding for the second phase of the Tomahawk Creek Wastewater Treatment Facility expansion and upgrade. The project has entered the design phase which costs $21,387,000. The Black & Veatch/HDR team was awarded the engineering services contract for the $280 million project in 2014.
Tomahawk Creek Wastewater Treatment Facility, located at 10701 Lee Boulevard in Leawood, was originally built in 1955. More than 60 years later, times have changed and so have the needs of the facility. New water quality regulations require upgrades to the existing Tomahawk Creek facility to improve water quality in Indian Creek and downstream waters. The facility currently treats seven million gallons per day, 40 percent of the wastewater collected from parts of Leawood, Olathe, Overland Park and Prairie Village. The remaining 60 percent is currently sent to Kansas City, Mo., for treatment. In 2016, $17 million was budgeted for payments to Kansas City, Mo. The cost to continue sending flow and paying Kansas City for treatment will substantially increase because of the city's $4.5 billion planned infrastructure improvements over the next several decades.
Johnson County Wastewater has studied how to accomplish two goals in the most cost-effective manner:
The study recommended investing to expand the Tomahawk Creek Facility to treat all flow as the most cost-effective, long-term solution. This solution also has the greatest environmental benefit of the alternatives considered.
Please visit http://www.jocogov.org/dept/wastewater/engineering/public-projects/tomahawk-creek-wastewater-treatment-facility for project details and updates.