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Conversion from Dual to Single-Stream Recycling
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Delafield-Hartland Water Pollution Control Commission Wastewater Treatment Plant Upgrade
Des Moines International Airport’s Runway 13-31 Reconstruction
Design and Construction for Closure of Surface Impoundments
Generating Station NPDES Compliance
Dredging for Confined Aquatic Disposal (CAD Cell) and Re-use of Dredged Material
Des Moines International Airport Taxiway D Reconstruction
Elkhorn Lakeland Water System Evaluation and Updates
Iowa DOT Interstate 80 and US Highway 169 Interchange