Rural Water - Quarter 2, 2012 - (Page 22)

Sustainability Through Energy Conservation BY JOHN E. REGNIER WATER AND WASTEWATER systems that don’t practice simple steps available to conserve energy do so at their peril. The potential dollar savings are enormous and frequently reflect concurrent savings in water, chemicals and carbon dioxide discharges. For example, by simple calculations, it can be estimated that small water systems serving less than 10,000 people produce on the order of 2 trillion gallons of water each year and if only 1 percent of this water winds up as domestic sewage that must be treated, small wastewater systems must deal with approximately 20 billion gallons each year. The amount of energy required to produce and treat this water either for consumption or for cleanup is correspondingly enormous. Some studies have shown that small systems spend on the order of $0.50/1,000 gallons for electric power to produce water for consumption; so using this figure, the energy cost just for small drinking water systems is about $1,000,000,000/year and wastewater energy costs add appreciably to this amount. 22 • Second Quarter 2012

Table of Contents for the Digital Edition of Rural Water - Quarter 2, 2012

From the President
Rethinking the World's Water Systems
Financing Sustainable Through Energy Conservation
Financial Dashboards
Rural Water Testifies Before the U.S. Senate
Regulatory Update
Throwing My Loop
Index to Advertisers /
From the CEO

Rural Water - Quarter 2, 2012