February 28, 2014--Water education: The hydrologic cycle (Anza Valley Outlook)

The hydrologic cycle is the continuous circulation of water from land and sea to the atmosphere and back again. Water evaporates from oceans, lakes and rivers into the atmosphere and this water later precipitates as rain or snow onto the land it once evaporated from. The water usually infiltrates (seeps) into the soil and rock from which some is transpired back into the atmosphere by plants. The remainder becomes ground water, which eventually seeps into streams where it evaporates or flows to the ocean. Adequate storage of water for short-term pumping cycles. Such a well may contain only 50 feet of water above the pump intake. As an example, when the water table declines 10 feet because of drought conditions, only 40 feet of water is available in the well for one pumping cycle, and the well seems to "go dry." In that situation, deepening the well may solve the problem as long as the deeper water is of good quality. If usable water is not available at a greater depth, the pumping rate must be reduced so that less water is pumped during each cycle.

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