McAlvain served as Construction Manager for the new headworks building with screening and grit removal equipment; influent pump station; anaerobic basin, anoxic basins, and oxidation ditches; secondary clarifiers; RAS/WAS pump station; chlorine disinfection system upgrades; dechlorination system; biosolids holding tank; biosolids dewatering building and belt filter press equipment; plant utility water pump station; administration and laboratory building; and site work.