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Basic Groundwater Terminology Environmental Hydrology Lecture 25
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Outline for the Week Key groundwater terminology Groundwater flow and dynamics Guest: Jon Kim, Geologist Vermont Geological Survey
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Aquifers – Water in Porous Media Understanding Groundwater (Oregon State University)
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Porosity vs Permeability
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Sources of Porosity in Media Well-sorted, high porosity Poorly-sorted, poor porosity Sorted porous rock, very high porosity Cemented sorted rock, very low porosity Solution porosity in rock Fracture porosity in rock Freeze and Cherry (1979)
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Porosities of Typical Media Freeze and Cherry (1979)
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Aquifer Types - Media Understanding Groundwater (Oregon State University)
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Aquifer types - Geometry Understanding Groundwater (Oregon State University) Unconfined Confined
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Aquifer Types Ward and Trimble Fig. 11.7 after Heath (1983)
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Groundwater - Surface Water Interactions Understanding Groundwater (Oregon State University)
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Gaining … …and Losing Reaches Understanding Groundwater (Oregon State University)
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Groundwater Recharge Where does the groundwater that you drink, come from? Understanding Groundwater (Oregon State University)
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Groundwater Concerns Water Quality Septic systems Home, garden, and automotive chemicals Fertilizer Applications Commercial use of pesticides Animal lots Hazardous materials used in business and industry Transportation/handling of bulk fuels & chemicals Storage tanks--underground and aboveground Storage lagoons Landfills and dumps Urban runoff
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