Easi-Set Precast Concrete Buildings recently completed a large 30-by-40-by-21.5-ft building for the 27 mgd Proctors Creek Waste Water Treatment Plant in Chesterfield County, Va. The precast concrete brick finish panels were erected in just two days on a cast-in place floor. The 30-ft-wide Easi-Span roof panel sections provided a fully open clear span for the housing of six large capacity chemical storage tanks.