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GROUND-WATER LEVEL STUDY <br />M <br />N <br />Introduction <br />This report was prepared in response to a request by Mr. Roman Bockus <br />for an evaluation of possible water-level lowering resulting from proposed <br />gravel mining operations which will be located in land parcel 2, Section 14, <br />T15, R67W, and parcels 3, 4 and 5, Section 23, T15, R67W. A basic premise <br />is that no water will be removed from the resultant lakes during mining. <br />Description of the Area <br />The gravel deposits to be mined are located 1 to 2 miles southwest of <br />Brighton, Colorado, and occur along low terraces bordering the South Platte <br />River. The area and wells owned by Adams Aggregate, Inc., are shown on <br />Figure 1. In addition, water-table contours based on measurements made in <br />June, 1472, are shown on Figure 1. <br />Ground Water <br />The eight wells owned by Adams Aggregate, Inc., range from 23 - 36.9 <br />feet in depth and produce water from the South Platte River alluvium. The <br />water levels measured in the wells closely correspond to the water level of <br />the South Platte River (Figures 1 and 2). Water-level fluctuations in <br />the wells will undoubtedly show seasonal fluctuations related to the flow <br />of the river. The amount of water lost to evaporation should cause no <br />perceptible loss because of the high permeability of the alluvium and the <br />large volume of water moving through the alluvium. <br />The mining operations may cause some minor variations in water quality <br />in these wells. However, if the water quality in the open pits is kept <br />high, these variations should be small. <br /> <br /> <br />'~ ht. U/. L'ITTINGER AND ASSOCIA fF:,, INC. <br />