Frank R. (Spellman Environmental Consultants, Norfolk, Virginia, USA) Spellman 
Water & Wastewater Infrastructure 
Energy Efficiency and Sustainability

A critical aspect of sustainability associated with water and wastewater systems is to maintain and manage infrastructure in the most efficient and economical manner while complying with environmental regulations and keeping rates at acceptable levels. Given the high cost of fuel, our growing population, and the associated increase in energy needs,