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Water Conservation In the United States, approximately 340 billion gallons of fresh water is withdrawn per day from rivers and reservoirs to support residential, commercial, industrial, agricultural and recreational activities. This accounts for about one-fourth of the nation’s total supply of renewable fresh water. Additionally, water is withdrawn from underground aquifers. In some parts of the United States, water levels in these aquifers have dropped more than 100 feet since the 1940s. On an annual basis, the water deficit in the United States is currently estimated at about 3,700 billion gallons. Water efficiency measures in new homes can easily reduce water usage by 30% or more. In a typical home, savings of 30,000 gallons of water a year can be achieved very cost-effectively. This results in average annual water utility savings of about $100 per year. As communities grow, increased demand for water leads to additional maintenance and higher costs for municipal supply and treatment facilities. New homes that use water efficiently have lower water use fees and reduced sewage volumes. Many water conservation strategies involve either no additional cost or rapid paybacks; biological wastewater treatment, rainwater harvesting and gray water plumbing systems, on the other hand, often involve more substantial investment. *Above information obtained from the US Green Building Council |
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