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Geology 115 Lab Midterm Review
Review Questions for the 115 midterm
18
Geology
03/07/2011

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Term
When a well is drilled into a ______________, the water level will rise to the level of the potentiometric or pressure surface
Definition
Confined Aquifer


Term
A(n) ______________ is a water-saturated geologic unit composed of rock or unconsolidated materials that yields water to wells or springs.
Definition
Aquifer


Term
The _______________ is the boundary between the unsaturated and saturated zones.
Definition
Water Table


Term
The ratio of open spaces relative to the rock volume is called __________. This is a storage or volume factor.
Definition
Porosity


Term
A(n) ___________ is the boundary between the zones of aeration and saturation. Where the water table intersects the land surface, examples springs, streams, and lakes are formed.
Definition
Unconfined Aquifer


Term
__________ is the ratio of open spaces relative to the rock or regolith volume.
Definition
Porosity


Term
Hard water has significant amounts of __________ and magnesium.
Definition
Calcium


Term
Calcium may be leached from most rocks, but ____________ and Dolomite provide the largest amount.
Definition
Limestone


Term
The ____ of water is a measure of alkalinity and acidity.
Definition
pH


Term
Increased temperature or increased _____________ from organic wastes causes a reduction in the amount of dissolved oxygen in water.
Definition
BOD (Biological Oxygen Demand)


Term
____________ is water that is free from all microbes.
Definition
Sterilized Water


Term
_________ is sedimentary rock composed of silt- and clay-sized particles; the most common sedimentary rock.
Definition
Shale


Term
_________ is silicone oxide, a common rock-forming mineral.
Definition
Quartz


Term
__________ is a measure of the combined content of all inorganic and organic substances contained in a liquid in: molecular, ionized or micro-granular (colloidal sol) suspended form.
Definition
TDS (Total Dissolved Solids)


Term
Which one of the major inorganic substances might indicate contamination by sewage?
Definition
Chloride, Nitrate, Sodium, Sulfate


Term
What are all of the major inorganic substances that may be detrimental to human health?
Definition
Sulfate, Sodium, Fluoride, Nitrate


Term
_____________ are major inorganic substances that adversely affect drinking water.
Definition
Iron and Chloride


Term
Know this formula
Definition
Load(tons/day) = Q x C x 0.0027
Q = Discharge
C = Concentration