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What is the elevation of Lake Carroll on the Sulphur Springs Quadgrangle Map?a. 15 feetb. 45 feetc. 32 feetd. 34 feet10 pointsQUESTION 2What is the general direction of groundwater flow in the Sulphur Springs Quadrangle region?a. eastb. north-eastc. south-eastd. north-west10 pointsQUESTION 3What is the approximate gradient (in units of ft/mile) of the groundwater surface between Lake Magdalene and Lake Carroll? (You may want to review the section on "Relief and Gradient (Slope)" in the Topographic Maps and Orthoimages Lab)a. 13 ft/mileb. 81 ft/milec. 47 ft/miled. 34 ft/mile10 pointsQUESTION 4Karst topography is generally always associated with what type of bedrock?a. graniteb. limestonec. sandstoned. shale10 pointsQUESTION 5Karst topography results from the dissolution of bedrock by the naturally occurring acids in rainwater. What is the most common naturally occurring acid in rainwater?a. sulfuric acid (H2SO4)b. nirtric acid (H2NO3)c. hydrochloric acid (HCl)d. carbonic acid (H2CO3)10 pointsQUESTION 6Wells A and C in Figure 12.12 in your Physical Geology Lab Manual both represent what type of well?a. water table aquifer wellsb. artesian wellsc. unconfined aquifer wellsd. aquitard wells10 pointsQUESTION 7Which geologic material will produce a better groundwater aquifer?a. shaleb. granitec. basaltd. sandstone10 pointsQUESTION 8(Referring to your flow net constructed for the Sulphur Springs Quadrangle) If a colored dye was released in Lake Magdalene, in which lake would the dye most likely appear next?a. West Lakeb. Lake Ellenc. Platt Laked. Lake Carroll10 pointsQUESTION 9The removal of groundwater from an aquifer faster than it can replenish will result in what phenomenon?a. over pressured ground waterb. floodingc. inflationd. subsidence10 pointsQUESTION 10Which of the following geologic material will have the highest porosity?a. gravelb. sandc. siltd. clay10 pointsQUESTION 11Geysers are most closely associated with which one of the following geologic features?a. glaciersb. desertsc. earthquakesd. volcanoes10 pointsQUESTION 12What is the term describing the ability of a geologic material to transmit a fluid?a. porosityb. subsidencec. drawdownd. permeability10 pointsQUESTION 13What is a gaining stream?a. A stream that receives water from an underground aquifer.b. A stream that provides water to an underground aquifer.c. A stream that is separated from an underground aquifer.d. A stream that is perched above an underground aquifer.10 pointsQUESTION 14How do flow lines generally relate to local water table contour lines?a. Flow lines generally run parallel to the water table contours.b. Flow lines generally run perpendicular to the water table contour lines.c. Flow lines can either run parallel or perpendicular to the water table contour lines.d. Flow lines generally have no relationship to the local water table contour lines.10 pointsQUESTION 15The region of lowered water table elevation surrounding a well that is withdrawing groundwater from an aquifer is referred to as what?a. zone of rechargeb. zone of dischargec. cone of depressiond. potentiometric surface10 pointsQUESTION 16What is the largest reservoir of fresh water (non-ocean water) in the world?a. groundwaterb. lakesc. ice sheets and glaciersd. rivers10 pointsQUESTION 17Which of the following geologic material will have the highest permeability?a. graniteb. sandc. siltd. clay

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In Carroll County, Illinois, there is a man-made recreational lake called Lake Carroll. It was created in 1974 as a result of the damming of the east fork of the Plum River close to the Illinois town of Lanark.

The Lake Carroll Association is the owner and operator of the earthen dam[2]. It is the biggest private lake in Illinois, according to [3]. [4] Only members of the Lake Carroll Association, which is made up of the owners of properties both on and off the lake, are allowed access to the lake. The Lake Carroll census-designated place is the neighborhood around the lake.There are single-family residences built along the shore. In the east and west parts of the lake, respectively, there are two marinas. Members of the Lake Carroll Association who don't own beachfront property can use the marinas.

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