Specifications include, but are not limited to: A. Upgrade or replace the preliminary treatment (plant headworks) process equipment (grit aeration, grit pumps, submerged grit screws conveyor, hoppers, metering, etc.) as necessary. B. Upgrade or replace the existing non-potable (in-plant) water (NPW) system. C. Assess and make recommendations to remove the hydraulic issue with the Final Clarifier Nos. 5, 6 and 7; provide design for the approved recommendation. D. Assess and make recommendations to remove the hydraulic bottleneck at the Junction Box downstream of the final clarifiers; provide design for the approved recommendation. E. Provide structural and mechanical repairs to the Flow Equalization Basins (FEBs). F. Evaluate and make recommendations on influent flow metering for reliability and accuracy. G. Assess and replace the chlorine injection line. H. Address safety and corrosion issues throughout the plant. I. Address safety and corrosion issue at Salado Creek WRC.