Enhanced Nutrient Removal (“ENR”) upgrades for the existing 20 MGD Sod Run WWTP. Modify seven process reactor basins and construct one new basin. New pre-anoxic reactor basin for return activated sludge. New deep bed denitrification filters. New primary sludge fermentation facilities with an odor control system. New methanol, sodium hydroxide and ferric chloride feed and storage facilities. Demolish and replace RAS and WAS pump systems. Civil, Mechanical, Piping, Electrical and Instrumentation system improvements to support the WWTP upgrades.