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Step 1: About the Spokane Valley-Rathdrum Prairie Aquifer

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Spokane Valley-Rathdrum Prairie Aquifer Map
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Water Cycle Diagram
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Did you know that all the water we use comes from an aquifer that flows below our feet?

The aquifer is made up of a layer of rocks and water. This underground layer spans 370 square miles from Idaho to Spokane.

The Spokane River flows over our aquifer. In some areas the river feeds the aquifer, and in other areas the aquifer flows back in, giving the river fresh clean water.

The aquifer is also fed by the snow melt from surrounding mountains, rainfall, and area lakes. Some large lakes, such Coeur d’Alene and Pend Oreille, and some small lakes like Newman and Liberty all recharge our aquifer.