Olathe, Kansas – July 10 –
This City of Olathe, Kansas awarded Grimm Construction a $33.5 million contract to construct the Cedar Creek Wastewater Treatment Plant project, which is being built to meet the demands of high population growth on the west side of Olathe. The project will expand and improve the plant in the areas of preliminary treatment, liquid treatment, and disinfection to meet growth and regulatory drivers. The project includes the extension of the earthen flood protection berm around the new facilities, a new influent sewer extending from a manhole in 119th Street, a new influent pumping station, a new 6 MG extraneous flow basin, a new headworks building with screening and grit removal, two new 5-stage biological nutrient removal basins, a new blower building to house single stage centrifugal blowers, two new 130-foot diameter final clarifiers, a new sludge pumping station, replacement of the UV equipment in the existing UV building, modifications to the existing control building, new chemical feed systems including calcium hypochlorite, ferric chloride, and sodium bisulfate, all site work including yard pipe and yard structures, upgrades to the plant effluent water system, a new engine generator and switchgear, and all electrical and I&C work. The biggest challenge of this project will be constructing the new flood wall and the influent pump station that is 41 feet deep in solid rock with the presence of groundwater. The project is scheduled to reach completion in November 2012.