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• . <br /> DELTA BAND AND GRAVEL, CD. <br /> PIT #1 -AMENDMENT <br /> M.L.R.B. PERMIT # M-77-020 <br /> OCTOBER 1999 <br /> EVAPORATIVE LOSS AND INDUSTRIAL USES <br /> Loughrey property <br /> This sheet gives an estimate of how much water will evapo- <br /> rate from the excavated area on the northern parcel. A well <br /> permit will be necessary to cover the water use associated with <br /> this parcel. An application will be made to cover the estimated <br /> losses from surface lake area. It will be Francis Loughrey's <br /> responsibility to file the necessary adjudication documents to <br /> have a claim on the water covered buy the well permit. A recap <br /> of water use expected during all phases of the mining and recla- <br /> mation plan for the north parcel includes the 5.01 acre lake as <br /> shown below. <br /> DATA <br /> Acres of lake 5.01 ac.± <br /> NOAA map average evaporative loss 46.25 inches <br /> Average annual rain fall 7.49 inches <br /> Effective rainfall factor 0.70 <br /> CALCULATIONS <br /> NET EFFECTIVE RAINFALL 0.70 * 7.49 = 5.22 INCHES <br /> NET EVAPORATION 46.25 - 5.2Z = 3.42 FT. <br /> 12 <br /> NET LAKE EVAPORATION 5.01 * 3.42 = 17.13 ROUND TO 18 AC-FT. <br /> RECAP FOR EXPECTED LOSSES AND USES AT THE OPERATION <br /> • Gravel processing, gravel loss and <br /> dust control leverage Loss) 17.00 ac-ft per year <br /> • Lake Surface Evaporative loss 18.00 ac-ft per year. <br /> • Reclamation - 0.00 ac-ft. <br /> TOTAL 35.00 ac-ft per year <br /> 9 <br />