Too Little Water

Georgia Rivers

Watershed

Chattahoochee Watershed

The Importance of Water Largest watersheds

Drought - Too Little Water Groundwater Aquifer depletion - Ogallala Aquifer

Too Little Water Saltwater intrusion

Sink Holes

Transporting Water Aqueducts - Providing a Sustainable Water Supply?

Transporting Water Colorado River w.youtub e.com/wat ch?v=tzW A8gTb4o g

Colorado River Compact

Lake Mead

Diverting Water Aral Sea 2009 ? e.com/watch?v=Z0 Pi61SyVSM

Global Water Problems Water distribution globally is very inequitable Stable runoff varies Drinking Water Problems 1.4 billion lack safe water 2.9 billion lack proper wastewater disposal Population Growth and Water Problems India – 8,000 villages have no local water supply China – water table falling 2-3 m / year Mexico City – water table falling 3.5 m / year

International Waters Rhine River Nile River

Tri-State Water Wars The U.S. Army Corps of Engineers (Corps) constructed Buford Dam and created Lake Lanier fifty years ago. The Lake’s authorized purpose was to provide flood control, hydropower and navigation. In 1989, the Corps recommended that a portion of the water being used for hydropower should be reallocated for water supply in the Atlanta region.

Water Ownership English Common Law or Riparian Rights: (East Coast) all landowners whose property is adjacent to a body of water have the right to make reasonable use of it. These rights cannot be sold or transferred other than with the adjoining land, and water cannot be transferred out of the watershed. Prior Appropriation: (West Coast) water rights are unconnected to land ownership, and can be sold or mortgaged like other property. The first person to use a quantity of water from a water source for a beneficial use has the right to continue to use that quantity of water for that purpose.

Desalination Providing a Sustainable Water Supply Desalinization Two methods: 1) Distillation Condenses Simplified process: Salt water Pure water is collected Water boiled Produces steam

Desalination 2) Reverse osmosis Issues: 1.$ 2.Large volumes of water 3.Disposal Salt water H2OH2O salt Pressure Fresh water Salt impermeable membrane

Water Conservation

Reducing Water Use Water Meters - apartments Building Codes Leaking Water Systems Systems to Store Rainwater Xeriscaping Grey Water Systems Laser Leveling