Such systems include, but are not limited to, pumps and pumping systems, compressors, blowers and aeration systems; piping and valve design, packaged treatment equipment, water storage tanks, standby power generation, and other mechanical systems supporting water and wastewater treatment processes. Direct and oversee the development of engineering deliverables including process and piping and instrumentation diagrams (P&IDs), mechanical equipment layouts, piping isometrics, equipment data sheets, and technical specifications.