Figure 2. This schematic block diagram shows a typical valley fill aquifer in mountainous terrain, like Bingham. The water source for wells like these is primarily from recharge (i.e., precipitation) on the surface of the sand and gravel filling the valley. The well may also draw additional recharge from neighboring rivers and streams. The till and bedrock uplands may also provide some water to the well, both through ground water flow and from induced infiltration of stream flow from the uplands (diagram after U.S. Environmental Protection Agency).

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Last updated on October 6, 2005

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