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Mr. Dennis Abrahfikon • Attachment A <br /> Simpson Paper Company January 17 , 1992 <br /> required) , well-head plumbing, and meter (to be installed in-line <br /> by Simpson) to be furnished and installed. <br /> Cost estimate of this work item is based on furnishing two 25-HP <br /> pumps similar to the pumps installed in Wells 4 and 5 . Depending <br /> on size of pump/motor actually required following testing and <br /> analysis, this cost item would vary. <br /> (5) Provide computer-simulation model of semi-perched zone <br /> on adiacent and underlyinQ aquifers. <br /> A 3-dimensional computer-simulation model capable of defining <br /> flow and TDS transport would be developed to show ground-water <br /> movement and TDS transfer between the semi-perched zone and the <br /> adjacent and underlying aquifers. The model would be constructed <br /> to define impacts on adjacent and underlying aquifers both under <br /> existing conditions and as a result of TDS reduction in the <br /> effluent disposal that may occur through changes in mill <br /> processes. <br /> Work items required in developing and calibrating the model, and <br /> in providing simulation runs for alternative effluent loading, <br /> consist of the following: <br /> (a) Prepare ground-water level maps for semi-perched, <br /> upper, intermediate and lower zones <br /> (b) Prepare maps showing lines of equal conductivity <br /> for semi-perched, upper, intermediate and lower aquifer <br /> zones <br /> (c) Using electric-log data, prepare maps showing <br /> lines of equal thickness of aquifer units of semi- <br /> perched, upper, intermediate and lower zones <br /> (d) Using electric-log data, prepare maps showing <br /> 4 <br />